SQLite DELETE Query

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

 

Syntax:

The basic syntax of DELETE query with WHERE clause is as follows:

 

DELETE FROM table_name

 

WHERE [condition];

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

Example:

Consider COMPANY table is having 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 would DELETE a customer whose ID is 7:

sqlite> DELETE FROM COMPANY WHERE ID = 7;

Now COMPANY table will have 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 would be as follows:

 

sqlite> DELETE FROM COMPANY;

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

 

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