SQLite 面试题与答案
Test your skills through the online practice test: SQLite Quiz Online Practice Test
问题 31. What is a subquery in SQLite?
A subquery in SQLite is a query nested inside another query, typically used to retrieve data that will be used in the main query's condition or result.
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问题 32. How to perform a transaction rollback in SQLite?
You can perform a transaction rollback in SQLite using the ROLLBACK statement: `ROLLBACK;`.
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问题 33. Explain the purpose of the LIKE operator in SQLite.
The LIKE operator in SQLite is used to search for a specified pattern in a column. It is often used with wildcard characters like '%' and '_'.
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问题 34. What is the AUTOINCREMENT attribute in SQLite?
The AUTOINCREMENT attribute in SQLite is used with INTEGER columns to automatically generate a unique integer for each new row, incrementing from the highest existing value.
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问题 35. Explain the purpose of the CASE statement in SQLite.
The CASE statement in SQLite is used to perform conditional logic within a SQL query, allowing you to return different values based on specified conditions.
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