MySQL SQL - How To Delete an Existing Row from a Table

How To Delete an Existing Row from a Table

Q

How To Delete an Existing Row from a Table? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements

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A

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)

2007-05-11, 4203👍, 0💬

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What Happens If the UPDATE Subquery Returns Multiple Rows
What Happens If the UPDATE Subquery Returns Multiple Rows? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements If a subquery is used in a UPDATE statement, it must return exactly one row for each row in the update table that matches the WHERE clause. If it returns multiple rows, My... 2007-05-11, 4505👍, 0💬

How To Delete Multiple Rows from a Table
How To Delete Multiple Rows from a Table? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements You can delete multiple rows from a table in the same way as deleting a single row, except that the WHERE clause will match multiple rows. The tutorial exercise below deletes 3 rows from t... 2007-05-11, 4209👍, 0💬

How To Delete an Existing Row from a Table
How To Delete an Existing Row from a Table? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements 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 INT... 2007-05-11, 4204👍, 0💬

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