MySQL - Deleting an Existing Row from a Table in MySQL

Deleting an Existing Row from a Table in MySQL

Q

How To Delete an Existing Row from a Table in MySQL?

✍: FYIcenter.com

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)

⇒INSERT, UPDATE and DELETE Statements in MySQL

⇒⇒MySQL Database Tutorials

2018-01-08, 638👍, 0💬

UPDATE with Subquery Returning No Rows in MySQL
What Happens If the UPDATE Subquery Returns No Rows in MySQL? If you use a subquery to assign new values in the SET clause in an UPDATE statement, and the subquery returns no rows for an outer row, MySQL will provide a NULL value to the SET clause. The tutorial exercise below shows you a good exampl... 2018-01-08, 734👍, 0💬

Deleting Multiple Rows from a Table in MySQL
How To Delete Multiple Rows from a Table in MySQL? 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 the fyi_links table: mysql> SELECT id, url, notes, coun... 2018-01-08, 666👍, 0💬

Deleting an Existing Row from a Table in MySQL
How To Delete an Existing Row from a Table in MySQL? 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);... 2018-01-08, 639👍, 0💬

Deleting All Rows in a Table in MySQL
How To Delete All Rows in a Table in MySQL? If you want to delete all rows from a table, you have two options: Use the DELETE statement with no WHERE clause. Use the TRUNCATE TABLE statement. The TRUNCATE statement is more efficient the DELETE statement. The tutorial exercise shows you a good exampl... 2018-01-08, 601👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.