20 lines
1008 B
PHP
20 lines
1008 B
PHP
Doctrine Query Language(DQL) is an Object Query Language created for helping users in complex object retrieval.
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You should always consider using DQL(or raw SQL) when retrieving relational data efficiently (eg. when fetching users and their phonenumbers).
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<br \><br \>
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When compared to using raw SQL, DQL has several benefits: <br \>
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<ul>
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<li \>From the start it has been designed to retrieve records(objects) not result set rows
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</ul>
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<ul>
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<li \>DQL understands relations so you don't have to type manually sql joins and join conditions
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</ul>
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<ul>
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<li \>DQL has some very complex built-in algorithms like (the record limit algorithm) which can help
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developer to efficiently retrieve objects
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</ul>
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<ul>
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<li \>It supports some many functions that help dealing with one-to-many, many-to-many relational data with conditional fetching.
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</ul>
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If the power of DQL isn't enough, you should consider using the rawSql API for object population.
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