Temporary Tables in MySQL: Usage and Examples

A temporary table holds intermediate results that exist only for your session — perfect for breaking a monster analysis into digestible steps without cluttering the database.

Key Points

• Create: CREATE TEMPORARY TABLE tmp_top_customers AS SELECT …;
• Visible only to your session; dropped automatically on disconnect
• Query, index, and join it like any normal table
• Useful when the same intermediate result feeds several queries
• CTEs are cleaner for single-statement logic; temp tables persist across statements
• A temp table can shadow a real table of the same name — name carefully