#sqlcorrelatedsubquery — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #sqlcorrelatedsubquery, aggregated by home.social.
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Why does this SQL subquery run a thousand times?
Why does this SQL subquery run a thousand times in production. The SQL code uses a correlated subquery in SELECT. In MySQL it executes once per row. In SQL one query can become millions of executions.
#whatswrongwiththissqlquery #sqlbug #sqlproductionbug #sqldebugging #sqldatabase #sqlcodereview #sqlperformance #sqlreliability #sqlanalytics #sqldataintegrity #sqlengineering #sqlcorrelatedsubquery #...
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Why does this SQL subquery run a thousand times?
Why does this SQL subquery run a thousand times in production. The SQL code uses a correlated subquery in SELECT. In MySQL it executes once per row. In SQL one query can become millions of executions.
#whatswrongwiththissqlquery #sqlbug #sqlproductionbug #sqldebugging #sqldatabase #sqlcodereview #sqlperformance #sqlreliability #sqlanalytics #sqldataintegrity #sqlengineering #sqlcorrelatedsubquery #...
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Why does this SQL subquery run a thousand times?
Why does this SQL subquery run a thousand times in production. The SQL code uses a correlated subquery in SELECT. In MySQL it executes once per row. In SQL one query can become millions of executions.
#whatswrongwiththissqlquery #sqlbug #sqlproductionbug #sqldebugging #sqldatabase #sqlcodereview #sqlperformance #sqlreliability #sqlanalytics #sqldataintegrity #sqlengineering #sqlcorrelatedsubquery #...