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SQL tricks with billionaires data

Intermediate SQL tutorial demonstrating REGEXP for advanced filtering, IF & CASE statements to create categories, SUBQUERIES for complex analysis, and JOINS for combining multiple tables — all shown ...
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Executing SQL statements using prepared statements and statement pooling

A prepared statement is a SQL statement that has been compiled, or prepared, into an access or query plan for efficiency. A prepared statement is available for reuse by the application without the ...