オールインワンの削除/挿入/更新トリガーを作成しようとしています。 2番目と3番目のAFTERSでAFTERの近くに2つの「誤った構文」、最後のENDで2つの構文エラーが発生します。
CREATE TRIGGER trig_all_dml
ON [dbo.file]
AFTER UPDATE
AS BEGIN
UPDATE
(excess code)
END
AFTER INSERT
AS BEGIN
UPDATE
(excess code)
END
AFTER DELETE
AS BEGIN
UPDATE (excess code)
END
GO
うまくいけば、これで十分な情報が得られます。問題は私の構文だと思いますが、正しい構文をオンラインで見つけることができません。
あなたに与えているのは、INSERT、UPDATE、DELETEのトリガーのコードです。これはMicrosoft SQL SERVER 2008でうまく動作します
/* comment section first create a table to keep track of Insert, Delete, Update
create table Emp_Audit(
EmpID int,
Activity varchar(20),
DoneBy varchar(50),
Date_Time datetime NOT NULL DEFAULT GETDATE()
);
select * from Emp_Audit*/
create trigger Employee_trigger
on Employees
after UPDATE, INSERT, DELETE
as
declare @EmpID int,@user varchar(20), @activity varchar(20);
if exists(SELECT * from inserted) and exists (SELECT * from deleted)
begin
SET @activity = 'UPDATE';
SET @user = SYSTEM_USER;
SELECT @EmpID = EmployeeID from inserted i;
INSERT into Emp_Audit(EmpID,Activity, DoneBy) values (@EmpID,@activity,@user);
end
If exists (Select * from inserted) and not exists(Select * from deleted)
begin
SET @activity = 'INSERT';
SET @user = SYSTEM_USER;
SELECT @EmpID = EmployeeID from inserted i;
INSERT into Emp_Audit(EmpID,Activity, DoneBy) values(@EmpID,@activity,@user);
end
If exists(select * from deleted) and not exists(Select * from inserted)
begin
SET @activity = 'DELETE';
SET @user = SYSTEM_USER;
SELECT @EmpID = EmployeeID from deleted i;
INSERT into Emp_Audit(EmpID,Activity, DoneBy) values(@EmpID,@activity,@user);
end
不可能、 [〜#〜] msdn [〜#〜] :
複数のトリガータイプに対してsameコードを実行させることができますが、構文では1つのトリガーで複数のコードブロックを使用できません。
テーブルまたはビューに対するINSERT、UPDATE、またはDELETEステートメントのトリガー(DMLトリガー)
CREATE TRIGGER [ schema_name . ]trigger_name ON { table | view } [ WITH <dml_trigger_option> [ ,...n ] ] { FOR | AFTER | INSTEAD OF } { [ INSERT ] [ , ] [ UPDATE ] [ , ] [ DELETE ] } [ NOT FOR REPLICATION ] AS { sql_statement [ ; ] [ ,...n ] | EXTERNAL NAME <method specifier [ ; ] > }
すべてのステータス(更新、挿入、削除)に使用します
CREATE TRIGGER trg_Insert_Test
ON [dbo].[MyTable]
AFTER UPDATE, INSERT, DELETE
AS
BEGIN
SET NOCOUNT ON;
DECLARE @Activity NVARCHAR (50)
-- update
IF EXISTS (SELECT * FROM inserted) AND EXISTS (SELECT * FROM deleted)
BEGIN
SET @Activity = 'UPDATE'
END
-- insert
IF EXISTS (SELECT * FROM inserted) AND NOT EXISTS(SELECT * FROM deleted)
BEGIN
SET @Activity = 'INSERT'
END
-- delete
IF EXISTS (SELECT * FROM deleted) AND NOT EXISTS(SELECT * FROM inserted)
BEGIN
SET @Activity = 'DELETE'
END
-- delete temp table
IF OBJECT_ID('tempdb..#tmpTbl') IS NOT NULL DROP TABLE #tmpTbl
-- get last 1 row
SELECT * INTO #tmpTbl FROM (SELECT TOP 1 * FROM (SELECT * FROM inserted
UNION
SELECT * FROM deleted
) AS A ORDER BY A.Date DESC
) AS T
-- try catch
BEGIN TRY
INSERT INTO MyTable (
[Code]
,[Name]
.....
,[Activity])
SELECT [Code]
,[Name]
,@Activity
FROM #tmpTbl
END TRY BEGIN CATCH END CATCH
-- delete temp table
IF OBJECT_ID('tempdb..#tmpTbl') IS NOT NULL DROP TABLE #tmpTbl
SET NOCOUNT OFF;
END
@Vishnuの答えに同意します。トリガーでアプリケーションユーザーを使用する場合は、「context_info」を使用してトリガーに情報を渡すことができます。
私は次のことを行うのに非常に役立つことがわかりました: http://jasondentler.com/blog/2010/01/exploiting-context_info-for-fun-and-audit