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2009-09-08

How-to create a table and its according history table in tsql

The main principle -

recreate the table from ssms
with TableNameHistory
add A TableNameHistoryId with the identity
add an Action Column - specifies what is the action performed on the table to track
add an SqlLogin Column - specifies the sql login performing the action
add an UpdateWhen column - specifies the time of the update ( here Update means the UPDATE , DELETE , INSERT actions )

Copy paste this triggers and replace the name of the "Feature" table with the name of your table
+ replace the corresponing columns.

The whole thing could wrap up in a single DDL trigger for CREATE_TABLE. If you have done it , please share a code ...





USE [GenApp]
GO
 
/****** Object:  Table [dbo].[FeatureHistory]    Script Date: 09/08/2009 10:02:43 ******/
SET ANSI_NULLS ON
GO
 
SET QUOTED_IDENTIFIER ON
GO
 
SET ANSI_PADDING ON
GO
 
CREATE TABLE [dbo].[FeatureHistory](
[FeatureHistoryId] [int] IDENTITY(1,1) NOT NULL,
[FeatureId] [int] NOT NULL,
[Vote] [int] NULL,
[Key] [varchar](200) NULL,
[Title] [varchar](2000) NOT NULL,
[Description] [varchar](2000) NOT NULL,
[GenAppApplicationId] [int] NULL,
[FeatureHistoryTagId] [int] NULL,
[Action] [varchar](50) NULL,
[SqlLogin] [varchar](200) NULL,
[UpdateWhen] [datetime] NOT NULL,
CONSTRAINT [PK_FeatureHistory] PRIMARY KEY CLUSTERED 
(
[FeatureHistoryId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
 
GO
 
SET ANSI_PADDING ON
GO
 
ALTER TABLE [dbo].[FeatureHistory] ADD  CONSTRAINT [DF_FeatureHistory_UpdateWhen]  DEFAULT (getdate()) FOR [UpdateWhen]
GO
 
 
 
USE [GenApp]
GO
 
/****** Object:  Table [dbo].[Feature]    Script Date: 09/08/2009 10:02:32 ******/
SET ANSI_NULLS ON
GO
 
SET QUOTED_IDENTIFIER ON
GO
 
SET ANSI_PADDING ON
GO
 
CREATE TABLE [dbo].[Feature](
[FeatureId] [int] IDENTITY(1,1) NOT NULL,
[Vote] [int] NULL,
[Key] [varchar](200) NULL,
[Title] [varchar](2000) NOT NULL,
[Description] [varchar](2000) NOT NULL,
[GenAppApplicationId] [int] NULL,
[FeatureTagId] [int] NULL,
CONSTRAINT [PK_Feature] PRIMARY KEY CLUSTERED 
(
[FeatureId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
 
GO
 
SET ANSI_PADDING ON
GO
 
 
/****** Object:  Trigger [dbo].[trig_AfterDeleteOnFeature]    Script Date: 09/08/2009 10:02:32 ******/
SET ANSI_NULLS ON
GO
 
 
SET QUOTED_IDENTIFIER ON
GO
 
 
 
 
 
 
-- =============================================
-- Author:        <Yordan Georgiev>
-- Create date: <Create Date,,>
-- Description:    <Description,,>
-- =============================================
CREATE TRIGGER [dbo].[trig_AfterDeleteOnFeature]    
ON  [dbo].[Feature]
for Delete
AS 
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
Insert into FeatureHistory 
( 
[FeatureId] , 
[Vote],
[Key],
[Title],
[Description],
[GenAppApplicationId],
[FeatureHistoryTagId],
[SqlLogin] , 
[Action],
[UpdateWhen]
 
)
 
select
[FeatureId] , 
[Vote],
[Key],
[Title],
[Description],
[GenAppApplicationId],
[FeatureTagId],
user_name(),
'DELETE',
getdate()
 
from Deleted
 
END
 
 
 
 
GO
 
 
/****** Object:  Trigger [dbo].[trig_AfterInsertOnFeature]    Script Date: 09/08/2009 10:02:32 ******/
SET ANSI_NULLS ON
GO
 
 
SET QUOTED_IDENTIFIER ON
GO
 
 
 
 
 
-- =============================================
-- Author:        <Yordan Georgiev>
-- Create date: <Create Date,,>
-- Description:    <Description,,>
-- =============================================
CREATE TRIGGER [dbo].[trig_AfterInsertOnFeature]    
ON  [dbo].[Feature]
AFTER insert
AS 
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
insert     into FeatureHistory 
( 
[FeatureId] , 
[Vote],
[Key],
[Title],
[Description],
[GenAppApplicationId],
[FeatureHistoryTagId],
[Action],
[SqlLogin],
[UpdateWhen]
 
)
 
select
[FeatureId] , 
[Vote],
[Key],
[Title],
[Description],
[GenAppApplicationId],
[FeatureTagId],
'INSERT',
user_name(), 
getdate()
 
from Feature where FeatureId in (select FeatureId from inserted)
select current_user
END
 
 
 
GO
 
 
/****** Object:  Trigger [dbo].[trig_AfterUpdateOnFeature]    Script Date: 09/08/2009 10:02:32 ******/
SET ANSI_NULLS ON
GO
 
 
SET QUOTED_IDENTIFIER ON
GO
 
 
 
 
 
 
 
-- =============================================
-- Author:        <Yordan Georgiev>
-- Create date: <Create Date,,>
-- Description:    <Description,,>
-- =============================================
CREATE TRIGGER [dbo].[trig_AfterUpdateOnFeature]    
ON  [dbo].[Feature]
AFTER UPDATE
AS 
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
insert     into FeatureHistory 
(
[FeatureId] ,  
[Vote],
[Key],
[Title],
[Description],
[GenAppApplicationId],
[FeatureHistoryTagId],
[SqlLogin] , 
[Action],
[UpdateWhen]
 
)
 
select
[FeatureId] , 
[Vote],
[Key],
[Title],
[Description],
[GenAppApplicationId],
[FeatureTagId],
user_name() , 
'UPDATE'  , 
getdate()
 
from Feature where FeatureId in (select FeatureId from inserted)
 
END
 
 
 
 
 
GO
 
 

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