DELETE Query

In SQLite, DELETE query is used to delete the existing records from a table. You can use it with WHERE clause or without WHERE clause. WHERE clause is used to delete the specific records (selected rows), otherwise all the records would be deleted.

Syntax:

DELETE FROM table_name  

WHERE [conditions....................];;  

Note: We can use N number of “AND” or “OR” operators with “WHERE” clause.

Example:

We have an existing table named “STUDENT”, having the following data:

Example1:

Delete the records of a student from “STUDENT” table where ID is 4.

DELETE FROM STUDENT WHERE ID = 4;   

The student’s record of id 4 is deleted; you can check it by using SELECT statement:

SELECT * FROM STUDENT;  

Output:

Example2:

If you want to delete all records from the table, don’t use WHERE clause.

DELETE FROM STUDENT;