SQL Delete
The SQL DELETE Statement
The DELETE
statement is used to delete existing records in a table.
DELETE Syntax
SQL
DELETE FROM table_name WHERE condition;
Important:
Be careful when deleting records in a table! Notice the WHERE
clause in the DELETE
statement. The WHERE
clause specifies which record(s) should be deleted. If you omit the WHERE
clause, all records in the table will be deleted!
SQL DELETE Example
The following SQL statement deletes the customer “Alfreds Futterkiste” from the “Customers” table:
SQL
DELETE FROM Customers WHERE CustomerName='Alfreds Futterkiste';
Delete All Records
It is possible to delete all rows in a table without deleting the table. This means that the table structure, attributes, and indexes will be intact:
SQL
DELETE FROM table_name;
The following SQL statement deletes all rows in the “Customers” table, without deleting the table:
SQL
DELETE FROM Customers;
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