Αποτελέσματα Αναζήτησης
The RENAME COLUMN clause is an option on the ALTER TABLE statement. You can rename an existing column in a base table to a new name without losing stored data or affecting any privileges or label-based access control (LBAC) policies that are associated with the table.
You can use the RENAME COLUMN in MySQL 8.0 to rename any column you need renamed. ALTER TABLE table_name RENAME COLUMN old_col_name TO new_col_name; ALTER TABLE Syntax :
Db2 ALTER TABLE ALTER COLUMN allows you to modify the definitions of the existing columns in a table. The following illustrates the syntax of the ALTER TABLE ALTER COLUMN statement: ALTER TABLE table_name ALTER COLUMN column_name modification_type; Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify the name of ...
To change the name of an existing table to a new one, you use the RENAME TABLE statement. Here is the syntax of the RENAME TABLE statement: RENAME TABLE table_name TO new_table_name; Code language: SQL (Structured Query Language) ( sql )
Renaming a table. MySQL renames files that correspond to the table tbl_name without making a copy. (You can also use the RENAME TABLE statement to rename tables. See Section 15.1.36, “RENAME TABLE Statement”.) Privileges granted specifically for the renamed table are not migrated to the new name.
The RENAME TABLE statement returns an error if the target table is referenced in a view definition or an SQL table function, unless the RENAMETABLE subsystem parameter is set to ALLOW_DEP_VIEW_SQLTUDF.
17 Ιουν 2024 · The RENAME TABLE statement in MySQL allows you to change the names of tables within a database, helping maintain organization and adaptability in data management. Syntax: RENAME TABLE old_table_name TO new_table_name [, ...]; Examples of Using RENAME TABLE Renaming a Single Table
