sqliteHow do I use SQLite triggers in my software development project?

SQLite triggers are an important part of software development projects. Triggers are pieces of code that are executed when a certain event occurs in the database. They are used to automate tasks and help maintain data integrity.

For example, the following SQLite trigger will insert a new row into the log table each time a row is inserted into the users table:

CREATE TRIGGER log_user_insert AFTER INSERT ON users
BEGIN
    INSERT INTO log (user_id, action) VALUES (new.id, 'insert');
END;

The code consists of the following parts:

• CREATE TRIGGER: This is the command used to create a trigger.
• log_user_insert: This is the name of the trigger.
• AFTER INSERT ON users: This specifies when the trigger should be executed. In this case, it will be executed after a row is inserted into the users table.
• INSERT INTO log: This is the action that will be taken when the trigger is executed. In this case, it will insert a row into the log table.
• VALUES (new.id, 'insert'): This specifies the values for the row that will be inserted. In this case, it will be the id of the row that was inserted into the users table, and the value insert.

For more information about SQLite triggers, please refer to the SQLite documentation.

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