I would suggest you to use 2 column's in every table. names rowhistory and IsDeleted and the data type will be xml and bit.
Never delete the rows, always use flag IsDeleted
Now go with update triggers. I will give you example for the same
I have this one table called Page
CREATE TABLE te_Page([Id] [int] IDENTITY(1,1) NOT NULL, [Name] [varchar](200) NOT NULL, [Description] [varchar](200) NULL,[CreatedBy] [uniqueidentifier] NULL, [CreatedDate] [datetime] NOT NULL, [UpdatedBy] [uniqueidentifier] NULL, [UpdatedDate] [datetime] NULL, [IsDeleted] [bit] NULL, [RowHistory] [xml] NULL, CONSTRAINT [PK_tm_Page] PRIMARY KEY CLUSTERED ([Id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY]
Now after creating the table all you need to do is copy paste the below code and your task is done for Page table. It will start recording the history of the row in the same row which is updated along with old and new values.
ALTER Trigger [dbo].[Trg_Te_Page]
On [dbo].[te_Page]
After Update
As
--If @@rowcount = 0 Or Update(RowHistory)
--Return
Declare @xml NVARCHAR(MAX)
Declare @currentxml NVARCHAR(MAX)
Declare @node NVARCHAR(MAX)
Declare @ishistoryexists XML
Declare @FormLineAttributeValueId int
-- new Values
Declare @new_Name varchar(200)
Declare @new_Description varchar(200)
Declare @new_CreatedBy UNIQUEIDENTIFIER
Declare @new_CreatedDate DATETIME
Declare @new_UpdatedBy UNIQUEIDENTIFIER
Declare @new_UpdatedDate DATETIME
Declare @new_IsDeleted BIT
--old values
Declare @old_Name varchar(200)
Declare @old_Description varchar(200)
Declare @old_CreatedBy UNIQUEIDENTIFIER
Declare @old_CreatedDate DATETIME
Declare @old_UpdatedBy UNIQUEIDENTIFIER
Declare @old_UpdatedDate DATETIME
Declare @old_IsDeleted BIT
-- declare temp fmId
Declare @fmId int
-- declare cursor
DECLARE curFormId cursor
FOR select Id from INSERTED
-- open cursor
OPEN curFormId
-- fetch row
FETCH NEXT FROM curFormId INTO @fmId
WHILE @@FETCH_STATUS = 0
BEGIN
Select
@FormLineAttributeValueId = Id,
@old_Name = Name,
@old_Description = [Description],
@old_CreatedBy = CreatedBy,
@old_CreatedDate =CreatedDate,
@old_UpdatedBy =UpdatedBy,
@old_UpdatedDate =UpdatedDate,
@old_IsDeleted = IsDeleted,
@currentxml = cast(RowHistory as NVARCHAR(MAX))
From DELETED where Id=@fmId
Select
@new_Name = Name,
@new_Description = [Description],
@new_CreatedBy = CreatedBy,
@new_CreatedDate =CreatedDate,
@new_UpdatedBy =UpdatedBy,
@new_UpdatedDate =UpdatedDate,
@new_IsDeleted = IsDeleted
From INSERTED where Id=@fmId
set @old_Name = Replace(@old_Name,'&','&')
set @old_Name = Replace(@old_Name,'>','>')
set @old_Name = Replace(@old_Name,'<','<')
set @old_Name = Replace(@old_Name,'"','"')
set @old_Name = Replace(@old_Name,'''',''')
set @new_Name = Replace(@new_Name,'&','&')
set @new_Name = Replace(@new_Name,'>','>')
set @new_Name = Replace(@new_Name,'<','<')
set @new_Name = Replace(@new_Name,'"','"')
set @new_Name = Replace(@new_Name,'''',''')
set @old_Description = Replace(@old_Description,'&','&')
set @old_Description = Replace(@old_Description,'>','>')
set @old_Description = Replace(@old_Description,'<','<')
set @old_Description = Replace(@old_Description,'"','"')
set @old_Description = Replace(@old_Description,'''',''')
set @new_Description = Replace(@new_Description,'&','&')
set @new_Description = Replace(@new_Description,'>','>')
set @new_Description = Replace(@new_Description,'<','<')
set @new_Description = Replace(@new_Description,'"','"')
set @new_Description = Replace(@new_Description,'''',''')
set @xml = ''
BEGIN
-- for Name
If ltrim(rtrim(IsNull(@new_Name,''))) != ltrim(rtrim(IsNull(@old_Name,'')))
set @xml = @xml + '<ColumnInfo ColumnName="Name" OldValue="'+ @old_Name + '" NewValue="' + @new_Name + '"/>'
-- for Description
If ltrim(rtrim(IsNull(@new_Description,''))) != ltrim(rtrim(IsNull(@old_Description,'')))
set @xml = @xml + '<ColumnInfo ColumnName="Description" OldValue="'+ @old_Description + '" NewValue="' + @new_Description + '"/>'
-- CreatedDate
If IsNull(@new_CreatedDate,'') != IsNull(@old_CreatedDate,'')
set @xml = @xml + '<ColumnInfo ColumnName="CreatedDate" OldValue="'+ cast(isnull(@old_CreatedDate,'') as varchar(100)) + '" NewValue="' + cast(isnull(@new_CreatedDate,'') as varchar(100)) + '"/>'
-- CreatedBy
If cast(IsNull(@new_CreatedBy,'00000000-0000-0000-0000-000000000000')as varchar (36)) != cast(IsNull(@old_CreatedBy,'00000000-0000-0000-0000-000000000000')as varchar(36))
set @xml = @xml + '<ColumnInfo ColumnName="CreatedBy" OldValue="'+ cast(IsNull(@old_CreatedBy,'00000000-0000-0000-0000-000000000000') as varchar(36)) + '" NewValue="' + cast(isnull(@new_CreatedBy,'00000000-0000-0000-0000-000000000000') as varchar(36))+
'"/>'
-- UpdatedDate
If IsNull(@new_UpdatedDate,'') != IsNull(@old_UpdatedDate,'')
set @xml = @xml + '<ColumnInfo ColumnName="UpdatedDate" OldValue="'+ cast(IsNull(@old_UpdatedDate,'') as varchar(100)) + '" NewValue="' + cast(IsNull(@new_UpdatedDate,'') as varchar(100)) + '"/>'
-- UpdatedBy
If cast(IsNull(@new_UpdatedBy,'00000000-0000-0000-0000-000000000000') as varchar(36)) != cast(IsNull(@old_UpdatedBy,'00000000-0000-0000-0000-000000000000') as varchar(36))
set @xml = @xml + '<ColumnInfo ColumnName="UpdatedBy" OldValue="'+ cast(IsNull(@old_UpdatedBy,'00000000-0000-0000-0000-000000000000') as varchar(36)) + '" NewValue="' + cast(IsNull(@new_UpdatedBy,'00000000-0000-0000-0000-000000000000') as varchar(36))+
'"/>'
-- IsDeleted
If cast(IsNull(@new_IsDeleted,'') as varchar(10)) != cast(IsNull(@old_IsDeleted,'') as varchar(10))
set @xml = @xml + '<ColumnInfo ColumnName="IsDeleted" OldValue="'+ cast(IsNull(@old_IsDeleted,'') as varchar(10)) + '" NewValue="' + cast(IsNull(@new_IsDeleted,'') as varchar(10)) + '" />'
END
Set @xml = '<RowInfo TableName="te_Page" UpdatedBy="' + cast(IsNull(@new_UpdatedBy,'00000000-0000-0000-0000-000000000000') as varchar(50)) + '" UpdatedDate="' + Convert(Varchar(20),GetDate()) + '">' + @xml + '</RowInfo>'
Select @ishistoryexists = RowHistory From DELETED
--print @ishistoryexists
If @ishistoryexists is null
Begin
Set @xml = '<History>' + @xml + '</History>'
Update te_Page
Set
RowHistory = @xml
Where
Id = @FormLineAttributeValueId
End
Else
Begin
set @xml = REPLACE(@currentxml, '<History>', '<History>' + @xml)
Update te_Page
Set
RowHistory = @xml
Where
Id = @FormLineAttributeValueId
End
FETCH NEXT FROM curFormId INTO @fmId
END
CLOSE curFormId
DEALLOCATE curFormId
Now whenever you will perform any update your data will be stored in rowhistory column