Browse by SQL concept

Drill the exact topic you want to practice

Every mission on caseSQL is tagged with the SQL concepts it practices. Pick a concept below to see every mission that drills it — across all four career paths. Great for targeted practice before an interview, or when you want to shore up a weak spot.

541 concepts · 580 missions

GROUP BY83 missions
Marketing·StarterWhere are our customers?Mission 4Marketing·StarterWhat are people buying?Mission 5Marketing·EasyWhich coupon is pulling its weight?Mission 7Marketing·MediumWhat's our average order value per campaign?Mission 15Provider·StarterEncounters by departmentMission 4Provider·StarterInsurance mixMission 5Provider·EasyTop 10 diagnosesMission 7Clinical Ops·EasyEncounter diagnosis volume by typeMission 4Clinical Ops·EasyThe POA tallyMission 5Clinical Ops·MediumTop 10 most-documented codesMission 7Clinical Ops·MediumBody system distributionMission 8Clinical Ops·MediumTop 10 chronic conditionsMission 9Clinical Ops·MasterTranslate the codes — top principal diagnosesMission 21Clinical Trials·EasyActive trials by phaseMission 1Clinical Trials·EasyWithdrawal reasons breakdownMission 3Clinical Trials·EasyAdverse events by severity gradeMission 5Clinical Trials·MediumPhase-3 trial rosterMission 8Payer Claims·EasyActive members by plan_typeMission 1Payer Claims·EasyClaims volume by service monthMission 2Payer Claims·EasyTop 5 specialties by claim countMission 3Payer Claims·MediumFirst-pass appeal volume by levelMission 10Pharma Commercial·EasyRx fills per productMission 3Pharma Commercial·EasyCalls per repMission 4Pharma Commercial·EasyPayer mix — Rx count per plan_typeMission 5Pharma Commercial·MediumTop 10 prescribers by Rx volumeMission 6Pharma Commercial·MediumTerritory roster — HCPs per territoryMission 9Hospital RCM·EasyActive payers by plan typeMission 1Hospital RCM·EasyCharges per CPT codeMission 3Hospital RCM·EasyClaims submitted per payerMission 4Hospital RCM·EasyTotal payments per providerMission 5Hospital RCM·MediumAR aging bucketsMission 10Hospital RCM·HardDays-in-AR by payer — open claims agingMission 11Finance·EasyTop 10 vendors — YTD spendMission 7Finance·EasyDepartmental spend by monthMission 9Finance·MediumRevenue seasonality by monthMission 13Banking·StarterActive deposit customers by stateMission 4Banking·EasyFICO band distribution at originationMission 8Banking·MediumVintage originations pacingMission 12AML & Fraud·StarterActive customers by stateMission 3AML & Fraud·EasySub-$10K cash deposits by customerMission 6AML & Fraud·EasyDaily deposit count per accountMission 7AML & Fraud·MediumRound-dollar wires — flag a patternMission 11Retail Banking Operations·StarterActive deposit customers by stateMission 4Retail Banking Operations·EasyBranch 13 missing transactionsMission 6Consumer Lending Analyst·StarterApplications by stateMission 4Consumer Lending Analyst·EasyAvg funded amount by loan purposeMission 7Consumer Lending Analyst·EasyHMDA action_taken distributionMission 8Consumer Lending Analyst·EasyOriginations by LO (top 10)Mission 10RevOps·StarterOpen opportunities by ownerMission 3RevOps·EasyPipeline value by stageMission 6RevOps·EasyDeals by close quarterMission 7RevOps·EasyAverage deal size by regionMission 9RevOps·MediumQuota attainment by rep (2025-Q1)Mission 31E-commerce·StarterCustomers by countryMission 3E-commerce·EasyRevenue by financial statusMission 6E-commerce·EasyOrders by monthMission 7E-commerce·EasyAverage order value by channelMission 9E-commerce·MediumTop 10 products by units soldMission 11Operations·EasyTotal units ordered per category last quarterMission 6Operations·MediumLatest inventory on hand per warehouseMission 12Operations·MediumLead-time consistency per supplierMission 14Logistics & Transportation Analytics·StarterStatus breakdownMission 5Logistics & Transportation Analytics·EasyCarrier shipment volumeMission 6Logistics & Transportation Analytics·EasyAverage freight cost per modeMission 10Logistics & Transportation Analytics·MediumDetention hot spots — lanes with high dwellMission 12Logistics & Transportation Analytics·MediumDuplicate tracking eventsMission 17Logistics & Transportation Analytics·HardMonthly freight cost trend by carrier modeMission 19Logistics & Transportation Analytics·HardLane-level OTD with carrier namesMission 20Logistics & Transportation Analytics·ExpertCarrier scorecard — four metrics in one queryMission 24Logistics & Transportation Analytics·MediumRegional origin performance — cost and OTDMission 26Procurement & Sourcing Analytics·EasySpend by categoryMission 6Procurement & Sourcing Analytics·EasySupplier PO volumeMission 7Procurement & Sourcing Analytics·MediumTop 10 suppliers by spendMission 11Procurement & Sourcing Analytics·MediumPreferred vs non-preferred shareMission 13Procurement & Sourcing Analytics·MasterCategory x spend-type cubeMission 26Warehouse Operations Analytics·EasySKUs by velocity classMission 6Warehouse Operations Analytics·EasyUPLH by zoneMission 7Warehouse Operations Analytics·EasyTop SKUs by pick frequencyMission 8Warehouse Operations Analytics·EasyInbound by day of weekMission 9Warehouse Operations Analytics·MediumPick rate by zone and shiftMission 12Warehouse Operations Analytics·HardLabor by functionMission 18Demand Planning & Forecasting Analytics·StarterSKUs by lifecycleMission 1Demand Planning & Forecasting Analytics·HardABC x XYZ segmentationMission 20
ORDER BY51 missions
Marketing·StarterWhere are our customers?Mission 4Provider·StarterEncounters by departmentMission 4Clinical Ops·EasyBrowse the cardiology codebookMission 1Clinical Ops·EasyPull the chronic disease listMission 2Clinical Ops·MediumTranslate every diagnosis on the chartMission 6Payer Claims·EasyClaims volume by service monthMission 2Payer Claims·EasyOut-of-network provider listMission 4Payer Claims·MediumCARC code frequency × categoryMission 8Pharma Commercial·EasyActive products by therapeutic classMission 1Pharma Commercial·EasyHCPs in cardiology specialtyMission 2Pharma Commercial·EasyCalls per repMission 4Pharma Commercial·MediumTerritory roster — HCPs per territoryMission 9Hospital RCM·EasyMedicare patients by demographicMission 2Finance·EasyTop 10 vendors — YTD spendMission 7Banking·StarterActive deposit customers by stateMission 4Consumer Lending Analyst·StarterLoan product taxonomyMission 2Consumer Lending Analyst·EasyOriginations by LO (top 10)Mission 10RevOps·StarterDeals over $50K by accountMission 5E-commerce·StarterOrders over $200 by customerMission 5E-commerce·MediumTop 10 products by units soldMission 11Operations·EasyTop 5 SKUs by purchase valueMission 8Logistics & Transportation Analytics·StarterMeet the carrier networkMission 2Logistics & Transportation Analytics·StarterLane inventoryMission 3Logistics & Transportation Analytics·StarterStatus breakdownMission 5Logistics & Transportation Analytics·MediumOn-time delivery rate by carrierMission 8Logistics & Transportation Analytics·MediumIn-full rate by carrierMission 9Logistics & Transportation Analytics·EasyAverage freight cost per modeMission 10Logistics & Transportation Analytics·MediumDetention hot spots — lanes with high dwellMission 12Logistics & Transportation Analytics·MediumTop 5 most expensive shipmentsMission 13Logistics & Transportation Analytics·MediumCarrier spend with invoice dataMission 15Logistics & Transportation Analytics·HardCarrier OTD vs. target gapMission 18Logistics & Transportation Analytics·HardMonthly freight cost trend by carrier modeMission 19Logistics & Transportation Analytics·ExpertInvoice audit: billed vs shipped amountsMission 23Logistics & Transportation Analytics·EasyTracking event timeline for a shipmentMission 25Logistics & Transportation Analytics·MediumRegional origin performance — cost and OTDMission 26Logistics & Transportation Analytics·MediumShipments with accessorial charges — detention deep diveMission 27Logistics & Transportation Analytics·MasterEnd-to-end carrier risk indexMission 30Procurement & Sourcing Analytics·StarterCategory catalogMission 2Procurement & Sourcing Analytics·StarterTop 10 invoices by amountMission 5Procurement & Sourcing Analytics·EasySupplier PO volumeMission 7Procurement & Sourcing Analytics·EasyOn-time delivery per supplierMission 8Procurement & Sourcing Analytics·MediumTop 10 suppliers by spendMission 11Procurement & Sourcing Analytics·HardContract compliance rateMission 18Procurement & Sourcing Analytics·MasterSupplier risk scoreMission 29Procurement & Sourcing Analytics·MasterProcurement capstoneMission 30Warehouse Operations Analytics·StarterWorker rosterMission 2Warehouse Operations Analytics·StarterInventory snapshot top 10Mission 4Warehouse Operations Analytics·MediumPick rate by zone and shiftMission 12Warehouse Operations Analytics·MasterOperations scorecardMission 29Demand Planning & Forecasting Analytics·StarterForecast versionsMission 3Demand Planning & Forecasting Analytics·StarterPromo calendarMission 5
WHERE46 missions
Marketing·EasyWhich coupon is pulling its weight?Mission 7Provider·EasyED wait time overviewMission 8Provider·EasyProvider roster with red flagsMission 10Finance·Starter2025 SaaS spend totalMission 4Finance·EasyUn-posted journal auditMission 8Banking·StarterOpen accounts right nowMission 3Banking·EasyReversals and chargebacks — clean the spend totalMission 6Banking·MediumStructuring flag — sub-$10K cash depositsMission 14AML & Fraud·StarterActive customers by stateMission 3AML & Fraud·StarterDrop the reversalsMission 4AML & Fraud·StarterCash deposits over $10KMission 5AML & Fraud·MediumRound-dollar wires — flag a patternMission 11AML & Fraud·MediumStructuring candidates — $9K–$9,999 over 14 daysMission 13AML & Fraud·HardFalse positives by rule — tuning targetsMission 19Retail Banking Operations·StarterNet new checking accounts this weekMission 5Consumer Lending Analyst·StarterLoan product taxonomyMission 2Consumer Lending Analyst·StarterFunded originations this quarterMission 3Consumer Lending Analyst·StarterNet new mortgages last 30 daysMission 5Consumer Lending Analyst·Easy30+ delinquent loan countMission 9RevOps·StarterOpen opportunities by ownerMission 3RevOps·StarterDrop the Closed-Lost dealsMission 4RevOps·StarterDeals over $50K by accountMission 5E-commerce·StarterDrop the voided / refunded ordersMission 4E-commerce·StarterOrders over $200 by customerMission 5Logistics & Transportation Analytics·StarterLane inventoryMission 3Logistics & Transportation Analytics·StarterDelivered shipment countMission 4Logistics & Transportation Analytics·MediumOverbilled invoicesMission 14Logistics & Transportation Analytics·MediumFailed shipments with carrier detailMission 16Logistics & Transportation Analytics·ExpertWeight-normalized freight cost per mileMission 22Logistics & Transportation Analytics·EasyTracking event timeline for a shipmentMission 25Logistics & Transportation Analytics·MediumShipments with accessorial charges — detention deep diveMission 27Logistics & Transportation Analytics·MasterShipment delivery delay analysisMission 28Procurement & Sourcing Analytics·StarterOpen POs countMission 3Procurement & Sourcing Analytics·StarterActive contract countMission 4Procurement & Sourcing Analytics·EasyATF detectionMission 10Procurement & Sourcing Analytics·MediumPurchase price varianceMission 15Procurement & Sourcing Analytics·Hard3-way matchMission 16Procurement & Sourcing Analytics·ExpertApex supplier dedupMission 24Warehouse Operations Analytics·HardSLA breachesMission 17Warehouse Operations Analytics·ExpertCycle count $$$ triageMission 22Warehouse Operations Analytics·ExpertWave failure analysisMission 25Warehouse Operations Analytics·MasterSlotting recommendationMission 26Demand Planning & Forecasting Analytics·StarterRecent actualsMission 4Demand Planning & Forecasting Analytics·MediumIntermittent SKU detectionMission 12Demand Planning & Forecasting Analytics·ExpertPersistent bias by SKUMission 21Demand Planning & Forecasting Analytics·MasterDemand-supply gapMission 28
Multi-CTE42 missions
Clinical Trials·ExpertAE attribution matrix — intervention × severityMission 16Clinical Trials·ExpertSite HHI — concentration of enrollments per therapeutic areaMission 18Payer Claims·HardTop denial concentration via HHI on CARC codesMission 12Payer Claims·ExpertOverturn% by level × denial_category (MAX(CASE) pivot)Mission 16Payer Claims·MasterRecoverable revenue at historical overturn rateMission 22Pharma Commercial·ExpertHCP×product call-Rx ROI matrixMission 16Pharma Commercial·ExpertTerritory market share HHI — concentration of Rx volumeMission 18Pharma Commercial·MasterRep effectiveness — calls vs Rx delta paired pivot, ranked within districtMission 22Hospital RCM·HardDays-in-AR by payer — open claims agingMission 11Hospital RCM·HardUnderpayment detection — contracted vs paidMission 14Hospital RCM·ExpertProvider × CPT productivity matrixMission 16Hospital RCM·ExpertAppeal overturn cohort — denied claims that paid after appealMission 17Hospital RCM·ExpertPayer concentration HHI per service lineMission 18Hospital RCM·MasterProvider effectiveness — charges vs collections delta, ranked within departmentMission 22Finance·MasterVariance bridge with allocation overlayMission 26AML & Fraud·ExpertRule-tuning backtest — precision quadrantsMission 24Retail Banking Operations·ExpertCustomer 360 — top depositorsMission 25Consumer Lending Analyst·HardEarly-Payment Default rate by vintage monthMission 16Consumer Lending Analyst·HardDelinquency progression: first miss × current statusMission 19Consumer Lending Analyst·ExpertPortfolio LTV stratification with seasoningMission 22Consumer Lending Analyst·ExpertCharge-off rate + principal recovery by vintage yearMission 24Consumer Lending Analyst·MasterFair Lending disparity index by FICO band (Black vs White)Mission 26RevOps·HardQuarterly bookings waterfall — new vs expandMission 19RevOps·ExpertPipeline hygiene — issue count per opportunityMission 21RevOps·ExpertARR bridge — starting + new + expand per quarterMission 22RevOps·ExpertRep performance dashboardMission 24E-commerce·HardGA4 conversion-value vs Shopify revenueMission 19E-commerce·ExpertRFM segmentation — customer scoringMission 21E-commerce·ExpertThree-system revenue reconciliationMission 22E-commerce·ExpertAbandoned-cart funnel by sourceMission 23E-commerce·ExpertDTC growth dashboardMission 24Operations·HardSupplier scorecard (lead time + on-time + cancellation)Mission 17Operations·MasterSupplier health capstone (multi-CTE scorecard)Mission 26Logistics & Transportation Analytics·MasterRolling 3-month freight cost vs prior periodMission 29Procurement & Sourcing Analytics·MediumPurchase price varianceMission 15Procurement & Sourcing Analytics·HardSpend under management %Mission 19Procurement & Sourcing Analytics·MasterDual-source coverageMission 28Procurement & Sourcing Analytics·MasterProcurement capstoneMission 30Warehouse Operations Analytics·ExpertZone utilizationMission 24Warehouse Operations Analytics·MasterPerfect inbound rateMission 28Warehouse Operations Analytics·MasterDC capstoneMission 30Demand Planning & Forecasting Analytics·MasterDemand planning capstoneMission 30
JOIN38 missions
Provider·StarterEncounters by departmentMission 4Provider·EasyWho's currently admitted?Mission 6Provider·EasyProvider roster with red flagsMission 10Clinical Ops·MediumTop 10 most-documented codesMission 7Clinical Ops·MediumBody system distributionMission 8Clinical Ops·MediumTop 10 chronic conditionsMission 9Finance·StarterMarch 2025 expense rollupMission 5Banking·StarterActive deposit customers by stateMission 4Banking·EasyJoint accounts — who’s the primary?Mission 10AML & Fraud·StarterActive customers by stateMission 3Retail Banking Operations·StarterActive deposit customers by stateMission 4Retail Banking Operations·EasyNSF / OD fee revenue by FICO bandMission 9Consumer Lending Analyst·StarterApplications by stateMission 4Consumer Lending Analyst·HardARM reset wall (next 6 months)Mission 17RevOps·StarterOpen opportunities by ownerMission 3RevOps·EasyAverage deal size by regionMission 9RevOps·MediumQuota attainment by rep (2025-Q1)Mission 31E-commerce·StarterCustomers by countryMission 3E-commerce·MediumTop 10 products by units soldMission 11E-commerce·MediumSource/medium attribution — last-touchMission 13Logistics & Transportation Analytics·EasyCarrier shipment volumeMission 6Logistics & Transportation Analytics·MediumOn-time delivery rate by carrierMission 8Logistics & Transportation Analytics·EasyAverage freight cost per modeMission 10Logistics & Transportation Analytics·MediumCarrier spend with invoice dataMission 15Logistics & Transportation Analytics·MediumFailed shipments with carrier detailMission 16Logistics & Transportation Analytics·HardCarrier OTD vs. target gapMission 18Logistics & Transportation Analytics·HardMonthly freight cost trend by carrier modeMission 19Logistics & Transportation Analytics·HardLane-level OTD with carrier namesMission 20Logistics & Transportation Analytics·HardPerfect score carriers — OTD and in-full combinedMission 21Logistics & Transportation Analytics·ExpertWeight-normalized freight cost per mileMission 22Logistics & Transportation Analytics·ExpertInvoice audit: billed vs shipped amountsMission 23Logistics & Transportation Analytics·ExpertCarrier scorecard — four metrics in one queryMission 24Logistics & Transportation Analytics·MediumRegional origin performance — cost and OTDMission 26Logistics & Transportation Analytics·MediumShipments with accessorial charges — detention deep diveMission 27Logistics & Transportation Analytics·MasterShipment delivery delay analysisMission 28Logistics & Transportation Analytics·MasterEnd-to-end carrier risk indexMission 30Procurement & Sourcing Analytics·EasySpend by categoryMission 6Warehouse Operations Analytics·HardSlotting mismatchMission 19
LIMIT29 missions
Marketing·StarterWelcome — preview the customer tableMission 1Marketing·StarterWhere are our customers?Mission 4Marketing·MediumTop 5 customers by spendMission 13Provider·StarterMeet the patientsMission 1Provider·EasyTop 10 diagnosesMission 7Clinical Ops·MediumTop 10 most-documented codesMission 7Clinical Ops·MediumTop 10 chronic conditionsMission 9Clinical Ops·MasterTranslate the codes — top principal diagnosesMission 21Payer Claims·EasyTop 5 specialties by claim countMission 3Pharma Commercial·MediumTop 10 prescribers by Rx volumeMission 6Hospital RCM·MediumTop 10 highest-revenue CPTsMission 6Finance·StarterPeek at the chart of accountsMission 1Finance·EasyTop 10 vendors — YTD spendMission 7Banking·StarterPeek at the customer bookMission 1AML & Fraud·StarterMeet the customer bookMission 1Retail Banking Operations·StarterPeek at the customer bookMission 1Consumer Lending Analyst·StarterPeek at the application bookMission 1RevOps·StarterMeet the opportunities tableMission 1E-commerce·StarterMeet the orders tableMission 1Operations·StarterShow the 5 most recent purchase ordersMission 5Operations·EasyTop 5 SKUs by purchase valueMission 8Logistics & Transportation Analytics·StarterFirst look at the shipment rosterMission 1Logistics & Transportation Analytics·MediumTop 5 most expensive shipmentsMission 13Procurement & Sourcing Analytics·StarterTop 10 invoices by amountMission 5Procurement & Sourcing Analytics·MediumTop 10 suppliers by spendMission 11Warehouse Operations Analytics·StarterInventory snapshot top 10Mission 4Warehouse Operations Analytics·EasyTop SKUs by pick frequencyMission 8Demand Planning & Forecasting Analytics·StarterRecent actualsMission 4Demand Planning & Forecasting Analytics·EasyBest/worst forecast accuracyMission 10
COUNT25 missions
Marketing·StarterHow many emails did we send?Mission 3Provider·StarterTotal encounter volumeMission 3Provider·StarterInsurance mixMission 5Banking·StarterOpen accounts right nowMission 3AML & Fraud·EasyDaily deposit count per accountMission 7Retail Banking Operations·StarterOpen accounts right nowMission 3Consumer Lending Analyst·StarterFunded originations this quarterMission 3Consumer Lending Analyst·EasyHMDA action_taken distributionMission 8Consumer Lending Analyst·Easy30+ delinquent loan countMission 9E-commerce·StarterCustomers by countryMission 3Operations·StarterHow many suppliers do we work with?Mission 1Operations·StarterHow many SKUs do we stock?Mission 3Logistics & Transportation Analytics·StarterDelivered shipment countMission 4Logistics & Transportation Analytics·StarterStatus breakdownMission 5Logistics & Transportation Analytics·EasyCarrier shipment volumeMission 6Logistics & Transportation Analytics·MediumCarrier spend with invoice dataMission 15Logistics & Transportation Analytics·MediumDuplicate tracking eventsMission 17Procurement & Sourcing Analytics·StarterFirst look at suppliersMission 1Procurement & Sourcing Analytics·StarterOpen POs countMission 3Procurement & Sourcing Analytics·StarterActive contract countMission 4Procurement & Sourcing Analytics·EasySupplier PO volumeMission 7Warehouse Operations Analytics·StarterZone countMission 1Warehouse Operations Analytics·EasySKUs by velocity classMission 6Demand Planning & Forecasting Analytics·StarterSKUs by lifecycleMission 1Demand Planning & Forecasting Analytics·StarterLocation countMission 2
Date arithmetic25 missions
Marketing·MasterRepeat-purchase cohort retentionMission 26BI·MediumTenure and salary — any correlation?Mission 15Provider·MediumAverage length of stay by departmentMission 11Provider·MediumPatient age at admissionMission 15Provider·MasterInpatient cohort returns matrixMission 26Hospital RCM·MediumAR aging bucketsMission 10Hospital RCM·HardDays-in-AR by payer — open claims agingMission 11Finance·ExpertLate-posting lag auditMission 21Banking·MediumDormant account auditMission 15Banking·HardVintage curve — 90+ DPD by MOBMission 16AML & Fraud·EasyDormant accounts that just woke upMission 8Retail Banking Operations·Hard2025 closed-account exit cohort with tenureMission 18Retail Banking Operations·ExpertReg E dispute aging reportMission 24Consumer Lending Analyst·HardARM reset wall (next 6 months)Mission 17RevOps·MediumPipeline velocity — avg days per stageMission 15E-commerce·MediumRefund-aware net revenue by monthMission 15E-commerce·MasterRepeat-buyer cohort retentionMission 26Operations·MediumAverage lead time per supplierMission 11Logistics & Transportation Analytics·MasterShipment delivery delay analysisMission 28Procurement & Sourcing Analytics·EasyAverage lead timeMission 9Procurement & Sourcing Analytics·MediumPO cycle timeMission 12Procurement & Sourcing Analytics·MediumInvoice payment timingMission 14Procurement & Sourcing Analytics·MasterSupplier risk scoreMission 29Warehouse Operations Analytics·MediumDock-to-stock 3-phaseMission 13Warehouse Operations Analytics·HardSLA breachesMission 17
SUM25 missions
Marketing·StarterWhat are people buying?Mission 5Marketing·MediumWhich campaign drove the most revenue?Mission 11Hospital RCM·EasyTotal payments per providerMission 5Hospital RCM·MediumTop 10 highest-revenue CPTsMission 6Finance·Starter2025 SaaS spend totalMission 4Finance·StarterMarch 2025 expense rollupMission 5Banking·EasyReversals and chargebacks — clean the spend totalMission 6AML & Fraud·StarterDrop the reversalsMission 4RevOps·EasyPipeline value by stageMission 6E-commerce·EasyRevenue by financial statusMission 6Logistics & Transportation Analytics·EasyTotal freight spendMission 7Logistics & Transportation Analytics·MediumTop 5 most expensive shipmentsMission 13Logistics & Transportation Analytics·MasterRolling 3-month freight cost vs prior periodMission 29Logistics & Transportation Analytics·MasterEnd-to-end carrier risk indexMission 30Procurement & Sourcing Analytics·EasySpend by categoryMission 6Procurement & Sourcing Analytics·HardSpend under management %Mission 19Procurement & Sourcing Analytics·ExpertMaverick spend shareMission 23Procurement & Sourcing Analytics·MasterCategory x spend-type cubeMission 26Procurement & Sourcing Analytics·MasterCategory HHI concentrationMission 27Warehouse Operations Analytics·StarterInbound receipt countMission 3Warehouse Operations Analytics·MediumWave completion timeMission 15Warehouse Operations Analytics·ExpertZone utilizationMission 24Demand Planning & Forecasting Analytics·EasyForecast vs actualMission 7Demand Planning & Forecasting Analytics·MediumWMAPEMission 11Demand Planning & Forecasting Analytics·HardTracking signalMission 17
Conditional aggregation24 missions
Provider·MasterPatient satisfaction × readmission gap by departmentMission 29Clinical Ops·HardPOA documentation rate by codeMission 12Clinical Trials·MediumArm balance — flag the imbalanced trialsMission 6Clinical Trials·HardScreen-fail rate vs portfolio averageMission 13Payer Claims·MediumDenial rate by CPT (top 10)Mission 6Payer Claims·MediumMember denial-rate cohort by regionMission 9Pharma Commercial·MediumNRx vs TRx breakdown per productMission 7Pharma Commercial·HardHigh-NRx-share prescribers — HAVING thresholdMission 12Hospital RCM·MediumClean claim rate per payerMission 7Hospital RCM·MediumDenial rate per CPT — high-volume CPTs onlyMission 9Hospital RCM·ExpertEdit attribution — denials by front-end fix categoryMission 19Banking·MasterCharge-off rate by product — FICO band heatmapMission 26Banking·MasterChargeback risk score by merchant categoryMission 28AML & Fraud·MasterCash-intensive customer profileMission 27AML & Fraud·MasterRule precision scorecard with rankMission 28Retail Banking Operations·EasyATM in-network vs foreign economicsMission 10Consumer Lending Analyst·MediumHMDA denial-reason rollupMission 12Consumer Lending Analyst·ExpertCharge-off rate + principal recovery by vintage yearMission 24RevOps·ExpertRep performance dashboardMission 24RevOps·HardRegional pipeline scorecardMission 28RevOps·HardForecast category pivot — per repMission 32E-commerce·MediumRefund rate by productMission 12E-commerce·ExpertDTC growth dashboardMission 24Operations·EasyOn-time delivery rate per supplierMission 7
Self-join24 missions
Marketing·MasterRepeat-purchase cohort retentionMission 26BI·MediumWho reports to whom?Mission 12Provider·MediumDuplicate patient auditMission 14Provider·ExpertReadmission cohort deep diveMission 21Provider·MasterInpatient cohort returns matrixMission 26Finance·HardDuplicate payment sweepMission 16Finance·MasterVendor concentration drift YoYMission 28Banking·MediumVelocity feature — auths in 1 hourMission 13Banking·HardSame-day amount-swing flagMission 19AML & Fraud·MediumCounterparty ring — same two customers, repeatedMission 14AML & Fraud·MediumDevice reuse across "separate" customersMission 15AML & Fraud·HardEmail reuse — fuzzy entity resolutionMission 16AML & Fraud·HardSOUNDEX-style name dedup across customer_idsMission 17AML & Fraud·HardMule network — one receives, many sendMission 20AML & Fraud·ExpertStructuring ring capstone — everyone in the networkMission 21RevOps·MediumDeals that reopened after Closed-WonMission 11RevOps·HardMost recent opportunity per accountMission 16RevOps·HardClosed-Won cohort retention by monthMission 18RevOps·HardAmount discount — committed vs closedMission 20E-commerce·MediumRefund rate by productMission 12E-commerce·HardMost recent order per customerMission 16E-commerce·HardRepeat-purchase cohort retentionMission 18E-commerce·HardDiscount-driven AOV impactMission 20E-commerce·MasterRepeat-buyer cohort retentionMission 26
SQL practice24 missions
Procurement & Sourcing Analytics·HardLead-time CV by supplierMission 17Procurement & Sourcing Analytics·ExpertSupplier scorecardMission 21Procurement & Sourcing Analytics·ExpertApex consolidated spendMission 25Warehouse Operations Analytics·MediumPick accuracyMission 11Warehouse Operations Analytics·MediumWorkers vs median LPHMission 14Warehouse Operations Analytics·HardAccuracy root causeMission 16Warehouse Operations Analytics·HardShift handoff analysisMission 20Warehouse Operations Analytics·ExpertUPLH normalized for travelMission 21Warehouse Operations Analytics·MasterTenure cohort productivityMission 27Demand Planning & Forecasting Analytics·EasyMAPE per SKUMission 6Demand Planning & Forecasting Analytics·EasyForecast attainmentMission 9Demand Planning & Forecasting Analytics·MediumPromo lift attributionMission 13Demand Planning & Forecasting Analytics·MediumForecast coverageMission 14Demand Planning & Forecasting Analytics·MediumAccuracy by versionMission 15Demand Planning & Forecasting Analytics·HardRolling WMAPEMission 16Demand Planning & Forecasting Analytics·HardForecast value-addMission 18Demand Planning & Forecasting Analytics·HardLag analysisMission 19Demand Planning & Forecasting Analytics·ExpertNaive benchmarkMission 22Demand Planning & Forecasting Analytics·ExpertCoefficient of variationMission 23Demand Planning & Forecasting Analytics·ExpertPromo uplift attributionMission 24Demand Planning & Forecasting Analytics·ExpertSKU segmentationMission 25Demand Planning & Forecasting Analytics·MasterFVA by versionMission 26Demand Planning & Forecasting Analytics·MasterROI rankingMission 27Demand Planning & Forecasting Analytics·MasterS&OP prepMission 29
Capstone17 missions
HAVING17 missions
COUNT(*)16 missions
Multi-CTE pipeline16 missions
AVG15 missions
LEFT JOIN15 missions
CTE12 missions
Data quality12 missions
INNER JOIN12 missions
SELECT12 missions
Ratio11 missions
CASE10 missions
CASE aggregation10 missions
COUNT DISTINCT10 missions
Bucketing9 missions
CASE WHEN9 missions
Float promotion9 missions
DISTINCT8 missions
GROUP BY HAVING8 missions
IS NULL8 missions
ORDER BY DESC8 missions
ROW_NUMBER8 missions
CASE bucketing7 missions
Exploration7 missions
Multi-table JOIN7 missions
NULL handling7 missions
PARTITION BY7 missions
WHERE filter7 missions
Date filter6 missions
JOINs6 missions
LAG window6 missions
NULLIF guard6 missions
Single-table SELECT6 missions
Subqueries6 missions
Top-N6 missions
Window frame6 missions
Attribution5 missions
DATE_TRUNC5 missions
LAG()5 missions
Multi-CTE rollup5 missions
Multi-CTE UNION ALL5 missions
NTILE(4) window5 missions
Percentages5 missions
TRIM5 missions
UNION ALL5 missions
10-KPI panel4 missions
Aggregation4 missions
Date math4 missions
Date window4 missions
LAG4 missions
MAX4 missions
NULLIF4 missions
RANK window4 missions
ROUND4 missions
Window function4 missions
Window functions4 missions
Anti-join3 missions
Cohort3 missions
Cohort filter3 missions
Cohort intersection3 missions
Cohort matrix3 missions
Correlated subquery3 missions
Date diff3 missions
Date truncation3 missions
Filters3 missions
Latest snapshot3 missions
LOWER3 missions
Multi-JOIN3 missions
NTILE3 missions
Pivot3 missions
RANK()3 missions
Tie handling3 missions
Top-N per group3 missions
Two-pass aggregation3 missions
UNION ALL labeled rows3 missions
WHERE flag = 13 missions
% calc + float promotion2 missions
3-table INNER JOIN2 missions
3-table JOIN2 missions
Aggregate-then-bucket2 missions
Backtest2 missions
BETWEEN2 missions
CASE buckets2 missions
CASE pivot2 missions
COALESCE2 missions
Cohort CTE2 missions
Concentration risk2 missions
Conditional COUNT pivot2 missions
Conditional MAX2 missions
COUNT() OVER2 missions
Cross-tab2 missions
Cumulative share2 missions
Data quality audit2 missions
Date extract2 missions
Date extraction2 missions
Date-window predicate2 missions
Dedup2 missions
Dim audit2 missions
Executive summary2 missions
EXISTS2 missions
Filtering2 missions
Grain reasoning2 missions
GROUP BY derived expression2 missions
GROUP BY multi-key2 missions
HHI2 missions
History table2 missions
IN clause2 missions
LEFT JOIN anti-join2 missions
LEFT JOIN audit2 missions
LEFT JOIN with COALESCE2 missions
LOWER()2 missions
MAX(CASE) pivot2 missions
Multi-CTE pivot2 missions
Multi-finding audit2 missions
NTILE on aggregate2 missions
NTILE()2 missions
Parallel CTEs2 missions
Parallel KPIs2 missions
Parallel NTILE/RANK windows2 missions
PERCENT_RANK()2 missions
Percentile2 missions
Persistence proxy2 missions
Priority CASE2 missions
RANK2 missions
Ratios2 missions
Reconciliation2 missions
Retention2 missions
ROW_NUMBER window2 missions
ROW_NUMBER()2 missions
Schema exploration2 missions
Scoring2 missions
SELECT *2 missions
Set arithmetic2 missions
substr date2 missions
SUM() OVER2 missions
SUM(CASE)2 missions
SUM(POWER(share,2))2 missions
SUM(share*share)2 missions
TEXT alignment2 missions
Threshold filter2 missions
Two-fact join at grain2 missions
UNION ALL events2 missions
Variance2 missions
Window2 missions
Window frames2 missions
Window functions on CTE2 missions
YoY2 missions
% calc1 mission
% change1 mission
100.0 * float promotion1 mission
2-D bucketing1 mission
2-table aggregation1 mission
2-table SELECT1 mission
8-KPI panel1 mission
A/B framing1 mission
ABS1 mission
Active filtering1 mission
Active-book filter1 mission
Advanced analytics1 mission
AE rate per 1001 mission
Aggregate-then-divide1 mission
Aggregate-then-window1 mission
Algebraic decomposition1 mission
Ambiguity1 mission
Anti-join (IS NULL)1 mission
Arithmetic1 mission
Asymmetric cohort filter1 mission
Attainment1 mission
Attainment %1 mission
Audit report1 mission
Audit trail1 mission
AVG decomposition1 mission
AVG fills/span1 mission
AVG lag1 mission
AVG LOS1 mission
AVG over window1 mission
AVG with NULL filter1 mission
AVG() OVER()1 mission
AVG/MIN/MAX1 mission
Baseline-relative flag1 mission
Behavioral targeting1 mission
Boolean aggregation1 mission
Boolean filters1 mission
Bracket math1 mission
Budget vs actual1 mission
Capacity-normalized metric1 mission
CASE + AVG1 mission
CASE labels1 mission
Case triage1 mission
CASE WHEN inside COUNT1 mission
Cash flow1 mission
Casing normalization1 mission
Category normalization1 mission
CCSR rollup1 mission
CECL grid1 mission
Channel mix1 mission
COALESCE chain1 mission
COALESCE fallback1 mission
Codebook audit1 mission
Cohort analysis1 mission
Cohort cross-tab1 mission
Cohort definition1 mission
Cohort intersection (INNER JOIN)1 mission
Cohort logic1 mission
Cohort LTV1 mission
Cohort seasoning1 mission
Cohort start1 mission
Comp join1 mission
Comparison1 mission
Composable metric assembly1 mission
Composite metrics1 mission
Composite scoring1 mission
Composition1 mission
Comprehensive report1 mission
Computed gap1 mission
Computed metric1 mission
Computed ratio1 mission
Conditional MAX pivot1 mission
Conditional ratio1 mission
Confusion matrix1 mission
Conversion rates1 mission
Correlated subqueries1 mission
Cost allocation1 mission
COUNT FILTER1 mission
COUNT(*) FILTER1 mission
COUNT(DISTINCT) anti-inflation1 mission
COUNT(fact.pk) trap1 mission
Counterfactual1 mission
CROSS JOIN1 mission
CROSS JOIN of CTE singletons1 mission
CROSS JOIN of scalar CTEs1 mission
Cross-join baseline1 mission
Cross-phase paired pivot1 mission
Cross-product aggregation1 mission
Cross-tab via JOIN1 mission
CTCAE severity1 mission
CTE bridge1 mission
CTE filtering1 mission
CTEs1 mission
CTR threshold1 mission
Cumulative1 mission
Cumulative aggregate1 mission
Cumulative distribution1 mission
Cumulative loss1 mission
Cumulative metric1 mission
Cumulative ratio1 mission
Customer attribute join1 mission
Cutoff testing1 mission
CV math1 mission
Daily-balance × rate aggregation1 mission
Data cleaning1 mission
Date cohorts1 mission
Date parsing1 mission
Date range1 mission
Date range filter1 mission
Date range frame1 mission
Date scope1 mission
Date window predicate1 mission
Date-window split1 mission
Decay curve1 mission
Deduplication1 mission
Denominator selection1 mission
Denormalization1 mission
Diffs1 mission
Dim preview1 mission
Dim quality1 mission
Dimension filter1 mission
Dirty data1 mission
Distance calc1 mission
DISTINCT in CTE1 mission
Distribution decomposition1 mission
Division1 mission
Drop-off attribution1 mission
Dual threshold flag1 mission
Eligibility scoring1 mission
Encounter pivot1 mission
Excess vs deficit1 mission
Excess-vs-baseline1 mission
EXISTS / NOT EXISTS1 mission
Expansion lens1 mission
Exposure x loss1 mission
EXTRACT(DOW)1 mission
Fact-to-fact bridge1 mission
Fan-out1 mission
FDIC limit logic1 mission
Filter on CARC code1 mission
Filter on level1 mission
First-per-group1 mission
First-seen1 mission
First-touch attribution1 mission
forecast_category1 mission
Format handling1 mission
FTP curve join1 mission
Full report1 mission
Fully-loaded variance1 mission
Funnel1 mission
FX normalization1 mission
Gap detection1 mission
Generated time-points1 mission
Generated time-points CROSS JOIN1 mission
Geographic analysis1 mission
GROUP BY AVG1 mission
GROUP BY flag1 mission
GROUP BY provider1 mission
GROUP_CONCAT1 mission
Growth1 mission
HAVING aggregate filter1 mission
HAVING COUNT = 01 mission
HAVING COUNT(DISTINCT)1 mission
HAVING multi-event1 mission
HAVING threshold1 mission
HAVING vs WHERE1 mission
Hierarchy1 mission
Histogram1 mission
Historical rate × open denials1 mission
History1 mission
History funnel1 mission
Inequality filter1 mission
Inline rates CTE1 mission
INTERSECT1 mission
INTERVAL1 mission
Investigation1 mission
is_target filter1 mission
JOIN to dim1 mission
LAG PARTITION BY1 mission
Latest-snapshot pattern1 mission
Latest-snapshot pivot1 mission
Latest-snapshot range filter1 mission
LEAST scenario operator1 mission
LEAST/GREATEST1 mission
LEFT JOIN + COALESCE1 mission
LEFT JOIN + IS NULL1 mission
LEFT JOIN counting trap1 mission
LEFT JOIN denominator1 mission
LEFT JOIN spine1 mission
LEVENSHTEIN1 mission
LIKE1 mission
LIKE pattern families1 mission
MAPE1 mission
Match scoring1 mission
Member-to-provider ratio1 mission
MIN1 mission
MIN-aggregation cohort1 mission
Modulo1 mission
Monthly bin1 mission
Moving average1 mission
Multi-branch CASE1 mission
Multi-column ORDER BY1 mission
Multi-condition1 mission
Multi-condition CASE1 mission
Multi-condition filter1 mission
Multi-COUNT DISTINCT1 mission
Multi-criteria ranking1 mission
Multi-criteria scoring1 mission
Multi-CTE funnel1 mission
Multi-CTE scenario1 mission
Multi-fact join1 mission
Multi-metric rollup1 mission
Multi-system join1 mission
Multi-system reconciliation1 mission
Multi-table JOIN chain1 mission
Multi-technique1 mission
Multiple CTEs1 mission
NDR proxy1 mission
Negative amounts1 mission
Net revenue1 mission
Normalization1 mission
NOT EXISTS1 mission
NOT IN1 mission
NTILE bands1 mission
NTILE deciles1 mission
NTILE quartile1 mission
NTILE() per partition1 mission
NTILE(10) window1 mission
NULL as a value1 mission
NULL filter1 mission
NULL filtering1 mission
NULL-before-window filter1 mission
NULL-safe sequential comparison1 mission
NULLIF div-by-zero guard1 mission
NULLIF for div-by-zero1 mission
OFAC screen1 mission
OR cohort with parens1 mission
OR logic1 mission
OR-of-LIKEs1 mission
ORDER BY ASC1 mission
Outer join1 mission
Pair grain1 mission
Pair grain → class grain1 mission
Pair grain → payer grain1 mission
Paired-comparison shape1 mission
Parallel RANK windows1 mission
Pareto1 mission
PARTITION BY department1 mission
PARTITION BY member-CPT1 mission
PARTITION BY product1 mission
PARTITION BY specialty1 mission
PARTITION BY territory1 mission
Patient-level aggregation1 mission
Peek query1 mission
Penalty model1 mission
Per-branch NII pivot1 mission
Per-encounter ratio1 mission
Per-enrollment summary CTE1 mission
Per-product pivot1 mission
Per-provider rate1 mission
Per-region pivot1 mission
Per-region rate1 mission
Per-row delta1 mission
Per-row ratio1 mission
PERCENT_RANK1 mission
Percentile bucketing1 mission
Period math1 mission
Period-over-period1 mission
Pivot via conditional aggregation1 mission
Point-in-time1 mission
Population stability1 mission
Posted flag1 mission
POWER amortization1 mission
Pre-aggregated CTEs1 mission
Price effect1 mission
Primary vs authorized1 mission
Principal+any-rank1 mission
Priority bucketing1 mission
Priority resolution1 mission
QUALIFY1 mission
Quartile bucketing1 mission
RANK PARTITION BY department1 mission
RANK PARTITION BY manager1 mission
RANK() window1 mission
Rate calc1 mission
Rate metric1 mission
Recency peek1 mission
Recent-payment filter1 mission
Refund filtering1 mission
Refunds1 mission
Retention logic1 mission
Revenue projection1 mission
Risk labeling1 mission
Rolling window1 mission
ROWS BETWEEN1 mission
Running total1 mission
Same-SKU different-warehouse1 mission
Same-store filter1 mission
Scalar subquery1 mission
SCD21 mission
SCD2 first-amount1 mission
SCD2 reopen detection1 mission
Segment impact1 mission
Self-join fact_diagnoses1 mission
Self-join on dim1 mission
Self-join via dual CTEs1 mission
Self-join with rn directionality1 mission
Sensitivity1 mission
Share %1 mission
Shopify+Stripe+GA41 mission
Signal count1 mission
Signed vs ABS error1 mission
Single-row exec dashboard1 mission
Single-table aggregation1 mission
Slippage1 mission
Snapshot fact1 mission
SOUNDEX / LEVENSHTEIN1 mission
Spine + LEFT JOIN1 mission
SQRT(AVG(x²) − AVG(x)²)1 mission
Status filter1 mission
Status pivot1 mission
Status transition1 mission
String construction1 mission
Stripe fee allocation1 mission
Structuring hint1 mission
Submit → deny → appeal → overturn1 mission
Subquery1 mission
Subquery IN1 mission
Subset comparison1 mission
substr month rollup1 mission
SUM OVER PARTITION1 mission
SUM(CASE WHEN NULL)1 mission
SUM(CASE) pivot1 mission
SUM(flag) / COUNT(*)1 mission
SUM(share*share) HHI1 mission
Survival fraction1 mission
Tenure bucketing1 mission
Terminology join1 mission
Territory attribution chain1 mission
Three-CTE pipeline1 mission
Threshold1 mission
Threshold compare1 mission
Thresholds1 mission
Tiebreakers1 mission
Tiered CASE1 mission
TO_CHAR1 mission
Top-N CTEs1 mission
Tracking gap1 mission
Trade-off visibility1 mission
Trailing-space gotcha1 mission
True positives1 mission
Two-axis comparison1 mission
Two-CTE pattern1 mission
Two-fact reconciliation1 mission
Two-stage funnel1 mission
Two-step grain1 mission
Type-uniform value column1 mission
UNION1 mission
UNION ALL composition1 mission
Variance %1 mission
Variance calculation1 mission
Vintage curve1 mission
Visit-log proxy for last seen1 mission
Volume effect1 mission
Watchlist1 mission
Waterfall1 mission
Week-over-week1 mission
Weighted by ADB1 mission
WHERE category1 mission
WHERE IS NULL1 mission
WHERE vs HAVING1 mission
Window AVG over PARTITION1 mission
Window function bucketing1 mission
Window over GROUP BY1 mission
Window share-of-total1 mission
Window SUM1 mission
Window SUM as running total1 mission
Window SUM frame1 mission
Within-window EXISTS1 mission
Year pivot1 mission
YoY delta1 mission
Z-score-style deviation1 mission
Zero-activity guard1 mission