Tag: sql
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SQL Concepts From A to Z
This post covers the SQL concepts that pop up during training. If you have a junior analyst in your life, keep reading
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Improve SQL Query Performance by Using Indexes
Scanning millions of rows each time you run a query is going be time-consuming and tedious. That’s where SQL indexes come in
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Relational Joins Without Venn Diagrams
SQL Joins are the first big learning curve after getting your head around the basics