SQL Query Plans
Example methods for various database systems showing how to show the Query Plan used by a query...
Oracle
Oracle
MySQL
MySQL
To generate a query plan without executing the query...
EXPLAIN
SELECT *
FROM myTable;
MSSQL
MSSQL
Bibliography
Bibliography
MySQLhttps://dev.mysql.com/doc/refman/5.7/en/using-explain.htmlhttps://dev.mysql.com/doc/refman/5.7/en/explain.htmlhttps://dev.mysql.com/doc/refman/5.7/en/explain-output.htmlhttps://dev.mysql.com/doc/refman/5.7/en/explain-extended.htmlhttps://dev.mysql.com/doc/workbench/en/wb-tutorial-visual-explain-dbt3.htmlhttps://dev.mysql.com/doc/workbench/en/wb-performance-explain.html
MSSQLhttps://sqlperformance.com/2021/03/sql-performance/execution-plan-timingshttps://www.brentozar.com/archive/2022/05/index-seek-doesnt-mean-much/