SQL Server : Script to Find and Create Missing Tables for Database Sychronization

Different methods and tools are available to synchronize two SQL Server databases. But one simple way to synchronize is using TSQL Script to find difference and create missing structures. Following script is for the same purpose. Script can be used to find and create missing tables on target database by comparing tables structure with source database.

Create DDL changes log

Its a common question, that How to trace changes made in database objects. Like,

Who has drooped my table ?
Who made changes in my view?
Who made changes in store procedure/Function?

You can solve this problem by creating a DDL (Data Definition Language) i.e. Create, Update, Drop trigger, to trace changes made in a database.

--==============CREATE table to store changes

CREATE TABLE [dbo].[ChangeLog](
[LogId] [int] IDENTITY(1,1) NOT NULL,
[DatabaseName] [varchar] (256) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[EventType] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[ObjectName] [varchar](256) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[ObjectType] [varchar](25) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[SqlCommand] [varchar](max) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[EventDate] [datetime] NOT NULL CONSTRAINT [DF_EventsLog_EventDate] DEFAULT (getdate()),
[LoginName] [varchar](256) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
) ON [PRIMARY]

go
--============= CREATE DATABASE TRIGGER TO INSERT CHANGES INTO dbo.changelog TABLE ===========
CREATE trigger backup_objects
on database
for create_procedure, alter_procedure, drop_procedure,
create_table, alter_table, drop_table,
create_function, alter_function, drop_function
as

set nocount on

declare @data xml
DECLARE @client_ip VARCHAR(15)
set @data = EVENTDATA()

SELECT @client_ip = client_net_address
FROM sys.dm_exec_connections
WHERE session_id =@data.value('(/EVENT_INSTANCE/SPID)[1]', 'varchar(256)')

insert into YOURDATABASE.dbo.changelog(databasename, eventtype,
objectname, objecttype, sqlcommand, loginname)
values(
@data.value('(/EVENT_INSTANCE/DatabaseName)[1]', 'varchar(256)'),
@data.value('(/EVENT_INSTANCE/EventType)[1]', 'varchar(50)'),
@data.value('(/EVENT_INSTANCE/SchemaName)[1]', 'varchar(256)') +'.'+
@data.value('(/EVENT_INSTANCE/ObjectName)[1]', 'varchar(256)'),
@data.value('(/EVENT_INSTANCE/ObjectType)[1]', 'varchar(25)'),
@data.value('(/EVENT_INSTANCE/TSQLCommand)[1]', 'varchar(max)'),
@data.value('(/EVENT_INSTANCE/LoginName)[1]', 'varchar(256)')+'('+@client_ip+')'
)