Reorganize table storage and update index statistics for supported engines.

Section: explain and analysis

Optimize a table

sql
sql
OPTIMIZE TABLE orders;
Explanation

Best used intentionally; its effect and cost depend on the storage engine and workload.

Learn the surrounding workflow

Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

Related commands

Same sheet · prioritizing explain and analysis
Explain a SELECT query
View the optimizer's execution plan.
OpenIn sheetsqlsame section
Run EXPLAIN ANALYZE
Execute the query and include actual timing information.
OpenIn sheetsqlsame section
Refresh table statistics
Update optimizer statistics for a table.
OpenIn sheetsqlsame section
Explain a currently running connection
Obtain the plan for a statement running in another session.
OpenIn sheetsqlsame section
Create a simple index
Add an index for a frequently filtered column.
Create a composite index
Index multiple columns in left-to-right order.