sqlite3.IntegrityError
时间: 2024-05-27 14:12:06 浏览: 34
sqlite3.IntegrityError is an exception that is raised when a database operation violates a database constraint, such as a primary key, unique constraint, or foreign key constraint. This error occurs when an attempt is made to insert a row that violates a constraint, update a row that would violate a constraint, or delete a row that would leave a constraint violated.
For example, if a table has a primary key constraint and an attempt is made to insert a row with a duplicate primary key value, then an sqlite3.IntegrityError will be raised. Similarly, if a table has a foreign key constraint and an attempt is made to delete a row that is referenced by another table, then an sqlite3.IntegrityError will be raised.
This error can be handled by catching the exception and taking appropriate action, such as rolling back the transaction or displaying an error message to the user.
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