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MySQL Tutorial - Deleting an Existing Row from a Table

By: FYIcenter.com

(Continued from previous topic...)

How To Delete an Existing Row from a Table?

If you want to delete an existing row from a table, you can use the DELETE statement with a WHERE clause to identify that row. Here is good sample of DELETE statements:

mysql> INSERT INTO fyi_links (url, id) 
   VALUES ('www.myspace.com', 301);
Query OK, 1 row affected (0.00 sec)

mysql> SELECT id, url, notes, counts FROM fyi_links 
   WHERE id = 301;
+-----+-----------------+-------+--------+
| id  | url             | notes | counts |
+-----+-----------------+-------+--------+
| 301 | www.myspace.com | NULL  |   NULL |
+-----+-----------------+-------+--------+
1 row in set (0.00 sec)

mysql> DELETE FROM fyi_links WHERE id = 301;
Query OK, 1 row affected (0.00 sec)

mysql> SELECT id, url, notes, counts FROM fyi_links 
   WHERE id = 301;
Empty set (0.00 sec)

(Continued on next topic...)

1. What Are DML Statements?
2. How To Create a Testing Table?
3. How To Insert a New Row into a Table?
4. How To Specify Default Values in INSERT Statement?
5. How To Omit Columns with Default Values in INSERT Statement?
6. What Happens If Unique Value Constraints Are Violated?
7. How To Insert Multiple Rows with One INSERT Statement?
8. How To Update Values in a Table?
9. How To Update Column Values on Multiple Rows?
10. How To Use Existing Column Values in the SET Clause?
11. Is the Order of Columns in the SET Clause Important?
12. How To Use Values from Other Tables in UPDATE Statements?
13. What Happens If the UPDATE Subquery Returns No Rows?
14. What Happens If the UPDATE Subquery Returns Multiple Rows?
15. How To Delete an Existing Row from a Table?
16. How To Delete Multiple Rows from a Table?
17. How To Delete All Rows in a Table?