Ignoring Errors

Normally INSERT stops and rolls back when it encounters an error.

By using the IGNORE keyword all errors are converted to warnings, which will not stop inserts of additional rows.

The IGNORE and DELAYED options are ignored when you use ON DUPLICATE KEY UPDATE.

Incompatibilities

Examples

CREATE TABLE t1 (x INT UNIQUE);

INSERT INTO t1 VALUES(1),(2);

INSERT INTO t1 VALUES(2),(3);
ERROR 1062 (23000): Duplicate entry '2' for key 'x'
SELECT * FROM t1;
+------+
| x    |
+------+
|    1 |
|    2 |
+------+
2 rows in set (0.00 sec)

INSERT IGNORE INTO t1 VALUES(2),(3);
Query OK, 1 row affected, 1 warning (0.04 sec)

SHOW WARNINGS;
+---------+------+---------------------------------+
| Level   | Code | Message                         |
+---------+------+---------------------------------+
| Warning | 1062 | Duplicate entry '2' for key 'x' |
+---------+------+---------------------------------+

SELECT * FROM t1;
+------+
| x    |
+------+
|    1 |
|    2 |
|    3 |
+------+

See INSERT ON DUPLICATE KEY UPDATE for further examples using that syntax.

See Also

• INSERT
• INSERT DELAYED
• INSERT SELECT
• HIGH_PRIORITY and LOW_PRIORITY
• Concurrent Inserts
• INSERT - Default & Duplicate Values
• INSERT IGNORE
• INSERT ON DUPLICATE KEY UPDATE