![]() RENAME COLUMN old_column_name3 TO new_col_name3 RENAME COLUMN old_column_name2 TO new_col_name2, RENAME COLUMN old_column_name1 TO new_col_name1, To change the names of multiple columns using the RENAME COLUMN clause, use the syntax: ALTER TABLE table_name This option is possible with the RENAME and the CHANGE statement. MySQL allows you to rename multiple columns with a single command. With the command above you can changed the name of the column, changed the data type to y_data_type, and positioned the column after column_x. ![]() For example: ALTER TABLE table_name CHANGE old_column_name new_col_name Data Type AFTER column_x The CHANGE also allows you to place the column in a different position in the table by using the optional FIRST | AFTER column_name clause. You can use additional options to further manipulate table columns. Note: If you don't know the data type of the column you are renaming, check the structure of the table and the column definition using the DESCRIBE statement: DESCRIBE table_name. If you need additional functions, such as changing the data definition, or position of a column, use the CHANGE clause instead. The RENAME COLUMN statement can only be used to rename a column. Keep in mind that you cannot rename a column to a name that already exists in the table.įor instance, to change the column id into employee_id in the table employees, you would run: ALTER TABLE employees RENAME COLUMN id TO employ_id Replace table_name, old_column_name, and new_column_name with your table and column names. To change a column name, enter the following statement in your MySQL shell: ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name This clause is available since MySQL version 8.0. ![]() The simplest way to rename a column is to use the ALTER TABLE command with the RENAME COLUMN clause. Rename MySQL Column with the RENAME Statement The difference is that the CHANGE clause can also be used to alter the data types of a column. The RENAME COLUMN and CHANGE statements both allow for the names of existing columns to be altered. Statements give us additional control over the renaming process. The function that concerns us the most is how to utilize ALTER TABLE to rename a column. You can use it to add or delete columns, change the type of data within the columns, and even rename entire databases. Rename MySQL Column with ALTER TABLE CommandĪLTER TABLE is an essential command used to change the structure of a MySQL table. ![]()
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