爲數據庫生成表的改動日誌

IF OBJECT_ID('dbo.AuditDDLEvents') IS NOT NULL
  DROP TABLE dbo.AuditDDLEvents;
GO

CREATE TABLE dbo.AuditDDLEvents
(
  lsn              INT      NOT NULL IDENTITY,
  posttime         DATETIME NOT NULL,
  eventtype        sysname  NOT NULL,
  loginname        sysname  NOT NULL,
  schemaname       sysname  NOT NULL,
  objectname       sysname  NOT NULL,
  targetobjectname sysname  NULL,
  eventdata        XML      NOT NULL,
  CONSTRAINT PK_AuditDDLEvents PRIMARY KEY(lsn)
);
GO

CREATE TRIGGER trg_audit_ddl_events ON DATABASE FOR DDL_DATABASE_LEVEL_EVENTS
AS

DECLARE @eventdata AS XML;
SET @eventdata = eventdata();

INSERT INTO dbo.AuditDDLEvents(
  posttime, eventtype, loginname, schemaname,
  objectname, targetobjectname, eventdata)
  VALUES(
    @eventdata.value('(/EVENT_INSTANCE/PostTime)[1]',         'VARCHAR(23)'),
    @eventdata.value('(/EVENT_INSTANCE/EventType)[1]',        'sysname'),
    @eventdata.value('(/EVENT_INSTANCE/LoginName)[1]',        'sysname'),
    @eventdata.value('(/EVENT_INSTANCE/SchemaName)[1]',       'sysname'),
    @eventdata.value('(/EVENT_INSTANCE/ObjectName)[1]',       'sysname'),
    @eventdata.value('(/EVENT_INSTANCE/TargetObjectName)[1]', 'sysname'),
    @eventdata);
GO

-- Test trigger trg_audit_ddl_events
CREATE TABLE dbo.T1(col1 INT NOT NULL PRIMARY KEY);
ALTER TABLE dbo.T1 ADD col2 INT NULL;
ALTER TABLE dbo.T1 ALTER COLUMN col2 INT NOT NULL;
CREATE NONCLUSTERED INDEX idx1 ON dbo.T1(col2);
GO

SELECT * FROM dbo.AuditDDLEvents;
GO