Which command is used to ALTER TABLE?

What is ALTER TABLE command?

The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table.

Which command creates and alter tables?

The ALTER TABLE command adds, deletes, or modifies columns in a table. The ALTER TABLE command also adds and deletes various constraints in a table.

Which command is used with alter command to change the name of table?

ActionCommandAlter a column's data typeALTER TABLE table_name ALTER COLUMN column_name TYPE data_type;Rename a tableALTER TABLE table_name RENAME TO new_table_name;Rename a column within a tableALTER TABLE table_name RENAME COLUMN column_name TO new_column_name;

What can be performed with the ALTER TABLE command?

- Column can't be deleted with alter command. - Column can't be renamed a column. - Column can't be added in between of the existing columns.