SQLite 面试题与答案
问题 46. Explain the purpose of the PRAGMA page_size command in SQLite.
The PRAGMA page_size command in SQLite is used to set or query the size of the database page, affecting the storage efficiency and performance of the database.
问题 47. What is the purpose of the ANALYZE command in SQLite?
The ANALYZE command in SQLite is used to update the statistics about the distribution of keys in the database, helping the query planner make better optimization decisions.
问题 48. Explain the purpose of the EXPLAIN keyword in SQLite.
The EXPLAIN keyword in SQLite is used to obtain information about the execution plan of a SELECT statement, helping to analyze and optimize queries.
问题 49. How to check if a table exists in SQLite?
You can check if a table exists in SQLite by querying the sqlite_master table or using the IF NOT EXISTS clause when creating the table.
问题 50. What is the purpose of the PRAGMA integrity_check command in SQLite?
The PRAGMA integrity_check command in SQLite is used to check the integrity of the entire database, identifying and reporting any issues with the database structure.
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