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SQL Date & Time Practice with Built-In Visualizer
Master SQL date and time operations including DATE(), strftime(), JULIANDAY(), date arithmetic, month/year extraction, and time-series aggregation. These skills are essential for cohort analysis, retention metrics, and time-based reporting in data science interviews.
74
SQL Problems
Difficulty Breakdown
74 problems19 Easy(26%)
41 Medium(55%)
14 Hard(19%)
0 Expert(0%)
Skills You'll Practice
65 skillsadtechaggregationavgbankingboolean logiccasecase statementcase whencastcleaning transformcoalescecomputed columncorrelated subquerycountcount distinctctectesdata bucketingdatedate arithmeticdate differencedate extractiondate functiondate timefilteringfinancefintechfood deliverygroup byhealthcareinner joinjoinjoinsjuliandaylagleft joinlodginglogisticsmaxminmin maxmobilitynull checknull handlingorder bypaymentsreal estateretailroundsaassingle tablesocialsortingstreamingstrftimesubquerysubstrsumtelecomthree table jointie breakerstwo table joinwherewindow fnswindow function
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