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MySQL/MariaDB - How...
 
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MySQL/MariaDB - How to duplicate a table

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(@hans)
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Joined: 11 years ago
Posts: 2638
Topic starter  

You can duplicate or "clone" a table's contents by executing a CREATE TABLE ... AS SELECT statement

CREATE TABLE new_table AS SELECT * FROM original_table;

Caution:
- Cloning a big table can take a lot of time and server resources.
- This approach does not copy indexes, auto_increment definitions etc.

 

To do a proper clone of a table, where we inherit all table definitions, use the CREATE TABLE ... LIKE syntax.

CREATE TABLE new_table LIKE original_table;

Caution:
- This copies the structure but DOES NOT copy the data.

To copy the data, you'll need INSERT ... SELECT:

INSERT INTO new_table SELECT * FROM original_table;

Caution: Copying big tables may take a lot of resources!


   
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