The command to clear table data in SQL is DELETE, and its syntax is: DELETE FROM table_name WHERE condition;. This command permanently deletes all data in the table or rows with specified conditions, so be careful when using it. To clear the entire table's data, the WHERE clause can be omitted.
The command to clear table data in SQL
The SQL command to delete all data in the table isDELETE
. The syntax is as follows:
DELETE FROM table_name WHERE condition;
Among them:
-
table_name
is the name of the table to clear the data. -
condition
is optional and specifies which rows to delete. If no condition is specified, all rows in the table will be deleted.
Example:
To clear all data in the table named users
, you can use the following command:
DELETE FROM users;
Note:
-
DELETE
The command is a permanent operation. Once executed, the data will not be recoverable. - Be careful when using the
DELETE
command, especially if the table contains important data. - If you want to delete specific rows in the table, you can use the
WHERE
clause to specify the deletion conditions. - If you want to clear all the data in the table without deleting the table itself, you can use the
TRUNCATE TABLE
command.TRUNCATE TABLE
is faster thanDELETE
because it does not perform row-by-row deletion.
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