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#column

Commands grouped around the same concept, pattern, or recurring problem.

2 commands with this tag Browse related patterns quickly
intermediate ddl MySQL MariaDB SQL Server PostgreSQL

Change a Column's Data Type With ALTER TABLE

Modify the data type, default value, or nullability of an existing column without recreating the table.

beginner ddl MySQL MariaDB SQL Server PostgreSQL SQLite

Rename a Column With ALTER TABLE

Change a column's name in place without dropping or recreating the table or its data.