SQLite 面试题与答案
问题 41. How to handle NULL values in SQLite?
You can handle NULL values in SQLite by using the IS NULL or IS NOT NULL operators in the WHERE clause, and by specifying the NULL keyword when defining columns.
问题 42. What is the purpose of the ATTACH DATABASE statement in SQLite?
The ATTACH DATABASE statement in SQLite is used to attach another database file to the current database, allowing you to query tables from both databases.
问题 43. Explain the use of the PRAGMA cache_size command in SQLite.
The PRAGMA cache_size command in SQLite is used to set or query the size of the page cache, affecting the amount of memory SQLite uses for caching database pages.
问题 44. What is the purpose of the strftime function in SQLite?
The strftime function in SQLite is used to format date and time values according to a specified format string.
问题 45. How to handle errors and exceptions in SQLite?
You can handle errors and exceptions in SQLite by using the TRY...EXCEPT block in conjunction with the RAISE function to raise a customized error message.
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