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Omitting Columns in INSERT Statements in MySQL
How To Omit Columns with Default Values in INSERT Statement in MySQL?
✍: FYIcenter.com
If you don't want to specify values for columns that have default values, or you want to specify values to columns in an order different than how they are defined, you can provide a column list in the INSERT statement. If a column is omitted in the column, MySQL applies 3 rules:
The following tutorial exercise gives you some good examples:
mysql> INSERT INTO fyi_links (url, id) VALUES ('sqa.fyicenter.com', 103); Query OK, 1 row affected, 1 warning (0.01 sec) mysql> INSERT INTO fyi_links (id) VALUES (110); Query OK, 1 row affected, 1 warning (0.06 sec) mysql> INSERT INTO fyi_links (url) VALUES ('www.fyicenter.com'); Query OK, 1 row affected, 1 warning (0.00 sec) mysql> SELECT id, url, notes, counts, DATE(created) FROM fyi_links; +-----+-------------------+-------+--------+---------------+ | id | url | notes | counts | DATE(created) | +-----+-------------------+-------+--------+---------------+ | 101 | dev.fyicenter.com | NULL | 0 | 2006-04-30 | | 102 | dba.fyicenter.com | NULL | 0 | 2006-07-01 | | 103 | sqa.fyicenter.com | NULL | NULL | 2006-07-01 | | 110 | | NULL | NULL | 2006-07-01 | | 0 | www.fyicenter.com | NULL | NULL | 2006-07-01 | +-----+-------------------+-------+--------+---------------+ 5 rows in set (0.00 sec)
⇒ Violation of Unique Value Constraint in MySQL
⇐ Using Column Default Values in MySQL
2018-01-16, 1697🔥, 0💬
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