Which of the following term is not a function in Sqlite3 module?
A. cursor
B. commit
C. query
D. rollback
Answer (2)
The option that is not a function in the sqlite3 module is C. query. In sqlite3, functions like cursor, commit, and rollback are available, while query is a general term used to describe SQL commands rather than a specific function. Therefore, query is the correct answer as it does not represent a function in the sqlite3 module.
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In the context of the sqlite3 module in Python, the task is to identify which one of the terms listed: cursor, commit, query, rollback is not a function provided by the module. To understand this, let's briefly go over the role of each term:
Cursor : A cursor is an object that allows interaction with the database. It is not a function, but instead, it provides methods such as execute() for executing SQL commands, and fetchone() for retrieving results.
Commit : The commit() function is used to save (commit) all the transactions made since the last commit or rollback. It is essential for ensuring that changes are saved to the database.
Query : In standard SQL practice, a query refers to the command used to fetch or operate on data. However, in the sqlite3 module, there is no direct function named query. Instead, you use the execute() method of a cursor to perform queries.
Rollback : The rollback() function is used to revert the database back to the state it was in after the last commit. This is useful for undoing changes if an error occurs.
Thus, the answer to the question is C. query , as it is not a function in the sqlite3 module but rather an operation you perform using other methods such as execute(). This understanding is crucial for managing database transactions effectively in your applications.
