DELETE Query

SQLite DELETE Query is used to delete the existing records from a table. You can use WHERE clause with DELETE query to delete the selected rows, otherwise all the records would be deleted.

Syntax

Following is the basic syntax of DELETE query with WHERE clause.DELETE FROM table_name WHERE [condition];

You can combine N number of conditions using AND or OR operators.

Example

Consider COMPANY table with the following records.

ID NAME AGE ADDRESS SALARY ---------- ---------- ---------- ---------- ---------- 1 Paul 32 California 20000.0 2 Allen 25 Texas 15000.0 3 Teddy 23 Norway 20000.0 4 Mark 25 Rich-Mond 65000.0 5 David 27 Texas 85000.0 6 Kim 22 South-Hall 45000.0 7 James 24 Houston 10000.0

Following is an example, which will DELETE a customer whose ID is 7.sqlite> DELETE FROM COMPANY WHERE ID = 7;

Now COMPANY table will have the following records.

ID NAME AGE ADDRESS SALARY ---------- ---------- ---------- ---------- ---------- 1 Paul 32 California 20000.0 2 Allen 25 Texas 15000.0 3 Teddy 23 Norway 20000.0 4 Mark 25 Rich-Mond 65000.0 5 David 27 Texas 85000.0 6 Kim 22 South-Hall 45000.0

If you want to DELETE all the records from COMPANY table, you do not need to use WHERE clause with DELETE query, which will be as follows −

sqlite> DELETE FROM COMPANY;

Now, COMPANY table does not have any record as all the records have been deleted by DELETE statement.