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Lesson 21: Delete data from database

In the two previous lessons, you have learned to insert and retrieve data from a database. In this lesson, we'll look at how to delete records in the database, which is considerably easier than inserting data.

Delete data using SQL

The syntax for an SQL statement that deletes records is:


 DELETE FROM TableName WHERE condition 
 
 

Example: Delete a record

When deleting a record, you can use the unique AutoNumber field in the database. In our database, it is the column named id. Using this unique identifier ensures that you only delete one record. In the next example, we delete the record where id has the value 24:



Remember that there is no "Recycle Bin" when working with databases and PHP. Once you have deleted a record, it is gone and cannot be restored.
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