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What are Yii’s Query Caching techniques? - Code Stap
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What are Yii’s Query Caching techniques?

What are Yii’s Query Caching techniques?

Answer: Yii’s query caching techniques include:

1. Query Caching: Caches the results of database queries, so if the same query is executed multiple times, the cached results are returned instead of hitting the database again. This can be configured using the `CDbCommand` class with `cache()` method.

2. Fragment Caching: Allows caching of specific parts (fragments) of the output generated by a view, which can include data fetched through queries. This can improve performance by not re-executing queries for content that doesn’t change frequently.

3. Data Caching: Involves caching data globally using cache components such as APC, Memcache, or file-based caches. This can be utilized to store and retrieve data representations or complex processed results.

4. Page Caching: Caches entire pages of rendered views to enhance performance, particularly for content that doesn’t change often.

These techniques optimize performance by reducing the load on the database and speeding up response times.

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