Use of transaction management statements in triggers

Reports usages of transaction management statements like COMMIT or ROLLBACK in trigger bodies.

With COMMIT or ROLLBACK statements in a trigger body, the trigger will not compile. The fail happens because triggers start during transactions. When the trigger starts the current transaction is still not complete. As COMMIT terminates a transaction, both statements (COMMIT and ROLLBACK) would lead to an exception. Changes that are executed in a trigger should be committed (or rolled back) by the owning transaction that started the trigger.

Example (Oracle):

CREATE TABLE employee_audit
(
    id          INT  NOT NULL,
    update_date DATE NOT NULL,
    old_name    VARCHAR2(100),
    new_name    VARCHAR2(100)
);

CREATE TABLE employees
(
    id   INT           NOT NULL,
    name VARCHAR2(100) NOT NULL
);

CREATE OR REPLACE TRIGGER trig_commit
    AFTER UPDATE OF name
    ON employees
    FOR EACH ROW
BEGIN
    INSERT INTO employee_audit VALUES (:old.id, SYSDATE, :old.name, :new.name);
    COMMIT;
END;

CREATE OR REPLACE TRIGGER trig_rollback
    AFTER UPDATE OF name
    ON employees
    FOR EACH ROW
BEGIN
    INSERT INTO employee_audit VALUES (:old.id, SYSDATE, :old.name, :new.name);
    ROLLBACK;
END;

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

SqlTransactionStatementInTriggerInspection

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | SQL

Availability

By default bundled with: CLion 2024.1, DataGrip 2024.1, DataSpell 2024.1, GoLand 2024.1, IntelliJ IDEA 2024.1, JetBrains Rider 2023.3, PhpStorm 2024.1, PyCharm 2024.1, Qodana for .NET 2023.3, Qodana for Go 2024.1, Qodana for JVM 2024.1, Qodana for PHP 2024.1, Qodana for Ruby 2024.1, RubyMine 2024.1,
Can be installed with plugin: Database Tools and SQL, 241.SNAPSHOT

Last modified: 18 June 2024