> For the complete documentation index, see [llms.txt](https://rdornel.gitbook.io/material/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rdornel.gitbook.io/material/linguagem-sql/triggers.md).

# TRIGGERS

* Comando vinculado a uma tabela que executa um ação assim que algum comando de UPDATE, INSERT ou DELETE é executado na tabela onde a trigger está vinculada.

\*\*\*\*

* **Trigger para INSERT**

```
CREATE TRIGGER trgINSERT_CLIENTE
ON Clientes
FOR INSERT
AS
BEGIN
INSERT clientes_audit
SELECT *,[TRG_OPERACAO] = 'INSERT', [TRG_DATA]=GETDATE(), [TRG_FLAG]='NEW' FROM Inserted
END;
```

* **Trigger para DELETE**

```
CREATE TRIGGER trgDELETE_CLIENTE
ON dbo.Clientes
FOR DELETE
AS
BEGIN
INSERT dbo.clientes_audit SELECT *,[TRG_OPERACAO] = 'DELETE',[TRG_DATA]=GETDATE(),[TRG_FLAG]='OLD' FROM Deleted
END;
```

* **Trigger para UPDATE**

```
CREATE TRIGGER trgUPDATE_CLIENTE
ON dbo.Clientes
FOR UPDATE
AS
BEGIN
INSERT dbo.clientes_audit SELECT *,[TRG_OPERACAO] = 'UPDATE',[TRG_DATA]=GETDATE(),[TRG_FLAG]='OLD' FROM Deleted
INSERT dbo.clientes_audit SELECT *,[TRG_OPERACAO] = 'UPDATE',[TRG_DATA]=GETDATE(),[TRG_FLAG]='NEW' FROM Inserted
END;
```