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Short, step-by-step video tutorials for Visio, Excel, SQL, Jira, BPMN and more, each with written instructions you can follow at your own pace.
Latest videos
Group by Month in SQL: Monthly Totals From Daily Rows
Filter by Date in SQL (Last 30 Days, Last Month, This Month)
Data Quality Checks in SQL for Business Analysts
Profile a New Table in SQL in 5 Queries
SQL CTE (WITH): Make Long Queries Readable, Step by Step
COUNT vs COUNT DISTINCT in SQL
SQL CASE WHEN: If-Then Logic in a Query
SUM, AVG, MIN, MAX in SQL: Summary Stats for a Report