SQL conditional row insert
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by Pablo
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Published on 2010-05-17T21:26:08Z
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2010/05/17
21:31 UTC
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Is it possible to insert a new row if a condition is meet?
For example, i have this table with no primary key nor uniqueness
+----------+--------+
| image_id | tag_id |
+----------+--------+
| 39 | 8 |
| 8 | 39 |
| 5 | 11 |
+----------+--------+
I would like to insert a row if a combination of image_id and tag_id doesn't exists for example;
INSERT ..... WHERE image_id!=39 AND tag_id!=8
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