Posts Tagged ‘T-SQL’

SQL server backup Error 3154

SQL Sever Error 3154: The backup set holds a backup of a database other than the existing database.

Tested only on MS SERVER 2008

USE master
GO
 
-- Database to restore : DJ_ADMIN
-- Resore With: DJ_ADMIN_Latest.bak
-- Backup existing database's to : DJ_ADMIN_Old.bak;DJ_ADMIN_Old_Log.bak
-- Database to restore : DJ_ADMIN
 
ALTER DATABASE DJ_ADMIN
SET SINGLE_USER WITH
ROLLBACK IMMEDIATE
RESTORE DATABASE DJ_ADMIN
FROM DISK = 'C:\Backups\DJ_ADMIN_Latest.bak'
WITH MOVE 'DJ_ADMIN' TO 'C:\Backups\DJ_ADMIN_Old.mdf',
MOVE 'DJ_ADMIN_Log' TO 'C:\Backups\DJ_ADMIN_Old_Log.ldf',
REPLACE
Posted: July 22nd, 2009
Categories: T-SQL
Tags: , , ,
Comments: No Comments.

Resetting/Changing the identity[auto-increment number] column value of a table

Resetting/Changing the identity[auto-increment number] column value of a table

DBCC CHECKIDENT checks the current identity value for the specified table and, if it is needed, changes the identity value. You can also use DBCC CHECKIDENT to manually set a new current identity value for the identity column

Tested only on MS SERVER 2008

Table to alter: 

CREATE TABLE Admin.DocumentType_List
(
	DocumentType_ID INT IDENTITY(0,1) NOT NULL,
	DocumentType NVARCHAR(250) NOT NULL,
	Description_ NVARCHAR(250) NOT NULL
CONSTRAINT PK_DocumentType PRIMARY KEY (DocumentType_ID)
)

In the above code ‘DocumentType_ID’ column has declared as Identity, having auto increment value by 1 starting with 0. This means the first row inserted will have ‘DocumentType_ID’ value of 1. then 2,3,so on..

In future if we want to reset this value, for what so ever reason, we can use T-SQL:

DBCC CHECKIDENT('Admin.DocumentType_List', RESEED, 0)

This code will reset table Identity back to 0.

Further Reading/Details:http://msdn.microsoft.com/en-us/library/ms176057(SQL.90).aspx

Posted: July 15th, 2009
Categories: T-SQL
Tags: , ,
Comments: No Comments.

Loop through database tables and columns

T-SQL code [Stored Procedure] to loop through all tables and all columns in a database

Applies to MS SQL SERVER 2008

Change [DATABASE_NAME],[SCHEMA_NAME],[USER_NAME] accordingly

Stored Procedure:
USE [DATABASE_NAME]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROC [SCHEMA_NAME].[loop_Through_Tables_Columns]
AS
BEGIN

SET NOCOUNT ON
DECLARE @TableName nvarchar(256)
DECLARE @ColumnName nvarchar(128)
SET @TableName = ''

WHILE @TableName IS NOT NULL
BEGIN
SET @ColumnName = ''
SET @TableName =
(SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)) FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE' /**You can remove this condition to go thourgh with both views and tables**/
AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
AND OBJECTPROPERTY(
OBJECT_ID(
QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)
), 'IsMSShipped'
) = 0
)

PRINT 'TableName: '+ CAST(@TableName AS CHAR)

WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL)
BEGIN
SET @ColumnName =
(
SELECT MIN(QUOTENAME(COLUMN_NAME))
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = PARSENAME(@TableName, 2)
AND TABLE_NAME = PARSENAME(@TableName, 1)
/**You you want to go thourgh with certain type of data types**/
AND DATA_TYPE IN('char','varchar','nchar','nvarchar','text','ntext','image','xml','varbinary')
AND QUOTENAME(COLUMN_NAME) > @ColumnName
)
PRINT 'ColumnName: '+ CAST(@ColumnName AS CHAR)
END
END

END
GRANT EXECUTE ON [SCHEMA_NAME].[loop_Through_Tables_Columns] to USER_NAME

Execute Stored Procedure:

EXEC [SCHEMA_NAME].[loop_Through_Tables_Columns]

Posted: July 15th, 2009
Categories: T-SQL
Tags: , , ,
Comments: 1 Comment.

Beginning SQL Server 2005 XML Programming

Beginning SQL Server 2005 XML Programming by Srinivas Sampath [21 February 2006]
Source:http://www.simple-talk.com

http://www.simple-talk.com/sql/sql-server-2005/beginning-sql-server-2005-xml-programming/

Posted: July 14th, 2009
Categories: Interesting Articles
Tags: , , ,
Comments: No Comments.

Search all columns of all tables in a database

Search all columns of all tables in a database

How to search all columns of all tables in a database for a keyword?

Credits to: Vyas

http://vyaskn.tripod.com/search_all_columns_in_all_tables.htm

Here is the complete stored procedure code:

–To search all columns of all tables in Pubs database for the keyword “Computer”

CREATE PROC SearchAllTables
(
 @SearchStr nvarchar(100)
)
AS
BEGIN
<span style="font-family: verdana; color: gray; font-size: xx-small;">
 -- Copyright � 2002 Narayana Vyas Kondreddi. All rights reserved.
 -- Purpose: To search all columns of all tables for a given search string
 -- Written by: Narayana Vyas Kondreddi
 -- Site: http://vyaskn.tripod.com
 -- Tested on: SQL Server 7.0 and SQL Server 2000
 -- Date modified: 28th July 2002 22:50 GMT
</span>
 
 CREATE TABLE #Results (ColumnName nvarchar(370), ColumnValue nvarchar(3630))
 
 SET NOCOUNT ON
 
 DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110)
 SET  @TableName = ''
 SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''')
 
 WHILE @TableName IS NOT NULL
 BEGIN
 SET @ColumnName = ''
 SET @TableName =
 (
 SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME))
 FROM 	INFORMATION_SCHEMA.TABLES
 WHERE 		TABLE_TYPE = 'BASE TABLE'
 AND	QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
 AND	OBJECTPROPERTY(
 OBJECT_ID(
 QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)
 ), 'IsMSShipped'
        ) = 0
 )
 
 WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL)
 BEGIN
 SET @ColumnName =
 (
 SELECT MIN(QUOTENAME(COLUMN_NAME))
 FROM 	INFORMATION_SCHEMA.COLUMNS
 WHERE 		TABLE_SCHEMA	= PARSENAME(@TableName, 2)
 AND	TABLE_NAME	= PARSENAME(@TableName, 1)
 AND	DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar')
 AND	QUOTENAME(COLUMN_NAME) > @ColumnName
 )
 
 IF @ColumnName IS NOT NULL
 BEGIN
 INSERT INTO #Results
 EXEC
 (
 'SELECT ''' + @TableName + '.' + @ColumnName + ''', LEFT(' + @ColumnName + ', 3630)
 FROM ' + @TableName + ' (NOLOCK) ' +
 ' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
 )
 END
 END
 END
 
 SELECT ColumnName, ColumnValue FROM #Results
END
EXEC SearchAllTables 'Computer'
GO
Posted: July 9th, 2009
Categories: T-SQL
Tags: ,
Comments: No Comments.