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mirror of synced 2025-01-17 22:11:41 +03:00
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zYne 2007-11-20 19:19:55 +00:00
parent 156cfd4a27
commit 050c76bfdc

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Syntax:
DQL JOIN Syntax:
<code>
[[LEFT | INNER] JOIN <component_reference1>] [ON | WITH] <join_condition1> [MAP] <map_condition1>,
[[LEFT | INNER] JOIN <component_reference2>] [ON | WITH] <join_condition2> [MAP] <map_condition2>,
[[LEFT | INNER] JOIN <component_reference1>] [ON | WITH] <join_condition1> [INDEXBY] <map_condition1>,
[[LEFT | INNER] JOIN <component_reference2>] [ON | WITH] <join_condition2> [INDEXBY] <map_condition2>,
...
[[LEFT | INNER] JOIN <component_referenceN>] [ON | WITH] <join_conditionN> [MAP] <map_conditionN>
[[LEFT | INNER] JOIN <component_referenceN>] [ON | WITH] <join_conditionN> [INDEXBY] <map_conditionN>
</code>
DQL supports two kinds of joins INNER JOINs and LEFT JOINs. For each joined component, you can optionally specify an alias.