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What is the command to clear table data in sql

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Release: 2024-05-08 10:18:14
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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.

What is the command to clear table data in sql

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;
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Among them:

  • table_nameis the name of the table to clear the data.
  • conditionis 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 namedusers, you can use the following command:

DELETE FROM users;
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Note:

  • DELETEThe command is a permanent operation. Once executed, the data will not be recoverable.
  • Be careful when using theDELETEcommand, especially if the table contains important data.
  • If you want to delete specific rows in the table, you can use theWHEREclause to specify the deletion conditions.
  • If you want to clear all the data in the table without deleting the table itself, you can use theTRUNCATE TABLEcommand.TRUNCATE TABLEis faster thanDELETEbecause it does not perform row-by-row deletion.

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