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PHP and MySQL syntax: Difference between revisions
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* approach 2: (1) '''select *''' and then (2) '''unset''' some records which matched the condition. | * approach 2: (1) '''select *''' and then (2) '''unset''' some records which matched the condition. | ||
== documentation == | |||
<pre> | |||
EXPLAIN table_name; | |||
</pre> | |||
== debug == | == debug == | ||
[[SQL syntax debug]] | [[SQL syntax debug]] | ||