Does SQLite have a query optimizer?

Question

The query optimizer in SQLite has basically two choices on how to implement this query. (There are actually six different choices, but we will only consider two of them here.) Pseudocode below demonstrating these two choices. The same indexes are used to speed up every loop in both implementation options.

How can I make SQLite query faster?

SQLite performance tuning1Create indices, but with caution.2Use the query planner to analyze your queries.3Optimize queries that involve IS NOT.4Improve write speed with the Write-Ahead-Log.5Measure everything.6Tune the cache size.7Use REPLACE INTO to create or update a row.SQLite performance tuning | AugmentedMind.de

Does SQLite support SQL queries?

SQLite understands most of the standard SQL language.

What is a query optimizer in SQL?

The query optimizer (called simply the optimizer) is built-in database software that determines the most efficient method for a SQL statement to access requested data.

What are the limitations of SQLite?

An SQLite database is limited in size to 281 terabytes (248 bytes, 256 tibibytes). And even if it could handle larger databases, SQLite stores the entire database in a single disk file and many filesystems limit the maximum size of files to something less than this.

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