Playing with Sql Server

Blog moved

Vivekanand — Tue, 21 Apr 2009 10:52:41 +0000

My blog is moved to

www.sqlserver007.com

Organising your Favourite SQL statments

Vivekanand — Tue, 31 Mar 2009 14:52:08 +0000

I constantly keep querying the Database sometimes for checking the metadata in the DatawareHouse. Lately I realised that have been executing the same long sql statements everyday. So is there a better way of Organising all my Favourite SQL statments or procedures ?

This is what I ended up with.

Create a Table

Table DataSource

The table contains the DatabaseName and the SQL that needs to be executed on that Database

Create the Procedure FavList

FavList Procedure

The above procedure is for listing the SQL statements and the Databases from the Table.

I have inserted my favourite SQL statements in the DataSource table as shown below

Table DataSource

Create the Procedure Fav

Fav Procedure

Run the Procedure with the parameter as the datasourceid to execute your favourite SQL statements.

like Fav 1,Fav 2 etc

The Procedure can be be modified to use the Search Tags

Happy SQL!!!

DayLight Savings and Sql Agent

Vivekanand — Sun, 29 Mar 2009 08:52:25 +0000

Ran a Job yesterday to check how the SQL agent Handles the DayLight Savings

Created the following Table

Table

Created the Following procedure to enter the current Date

Procedure

and Ran the Job every minute from March 28th 2009 22:50 to Mar 29th 2009 3:00 AM

Results:

daylightsaving-results

There was no 01:00 AM on March 29th !!!!. So any jobs scheduled at 01:00 AM will not run. Sql Agent cannot handle it!!!

Backup Report on SQL SERVER Databases

Vivekanand — Tue, 17 Mar 2009 10:17:45 +0000

The Following Script will output the List of Databases in the SQL server and gets the Last Date the Databases were backed up

select Convert(Varchar(25),server_name) as ‘Server Name’
,convert(varchar(25),database_name) as ‘Database’
,max(backup_finish_date) as ‘Last_backup_date’
from msdb..backupset
Where database_name
in
(select name from master..sysdatabases)
and server_name = @@servername
group by server_name,database_name order by Last_backup_date DESC

When the Procedures were Last Modified

Vivekanand — Wed, 11 Mar 2009 11:00:50 +0000

SELECT name, create_date, datepart(dy,create_date) as CreatedDayOfYear,
modify_date, datepart(dy,modify_date) as ModificationDayOfYear
FROM sys.sql_modules
JOIN sys.objects
ON sys.sql_modules.object_id = sys.objects.object_id
AND TYPE = ‘P’
order by datepart(yyyy,modify_date) desc,
datepart(dy,modify_date) desc, name;

Proper Case in Sql Server

Vivekanand — Wed, 11 Mar 2009 10:55:42 +0000

Here is the Sql function that will Proper Case any column in a table

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
create function [dbo].[ProperCase](@Text as varchar(8000))
returns varchar(8000)
as
begin
declare @Reset bit;
declare @Ret varchar(8000);
declare @i int;
declare @c char(1);
select @Reset = 1, @i=1, @Ret = ”
while (@i <= len(@Text))
select @c= substring(@Text,@i,1),
@Ret = @Ret + case when @Reset=1 then UPPER(@c) else LOWER(@c) end,
@Reset = case when @c like ‘[a-zA-Z]‘ or @c in (””) then 0 else 1 end,
@i = @i +1
return @Ret
end

–Example

declare @name varchar(100)
set @name =’marcus ford’
set @name = dbo.propercase(@name)
print @name

Result — Marcus Ford

“Set identity_insert on” errors for more than one table

Vivekanand — Tue, 24 Feb 2009 16:55:27 +0000

I was trying to remove the Identity inserts for 4 tables all at once but I keeping getting errors like Cannot remove the Identity insert on table 2 as the table1 already has identity insert on.

So after digging into the MSDN I was surprised to see the following lines

“At any time, only one table in a session can have the IDENTITY_INSERT property set to ON. If a table already has this property set to ON, and a SET IDENTITY_INSERT ON statement is issued for another table, Microsoft® SQL Server™ returns an error message that states SET IDENTITY_INSERT is already ON and reports the table it is set ON for.”

Problem with Maintenance Plan in Sql server 2005 After installing SP3

Vivekanand — Thu, 19 Feb 2009 13:00:13 +0000

Problem:

I was trying to configure the backups on Sql Server using the Maintenace Plan.

When I opened it . I got the following error

TITLE: Microsoft SQL Server Management Studio

——————————

Failed to retrieve data for this request. (Microsoft.SqlServer.SmoEnum)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&LinkId=20476

——————————
ADDITIONAL INFORMATION:

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

——————————

Invalid column name ‘from_msx’.
Invalid column name ‘has_targets’. (Microsoft SQL Server, Error: 207)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.4035&EvtSrc=MSSQLServer&EvtID=207&LinkId=20476

——————————
BUTTONS:

OK
——————————

Analysis:

The resource DB has not been Upgraded to SP2 version 9.00.3042.00.

The following Script should prove it.

SELECT SERVERPROPERTY(‘ResourceVersion’) as ResourceDB, SERVERPROPERTY(‘ResourceLastUpdateDateTime’) as ResourceDBLastUpdate,

SERVERPROPERTY(‘ProductVersion’) as Ver, SERVERPROPERTY (‘ProductLevel’) as SP;

A specific “msx” table found in the master database, that holds details of maintenance jobs, did not have certain additional columns added to it after the upgrade to SP2.

Solution :

There are 2 solutions to the problem depending on the risk .

Solution 1

Creating the jobs instead of Maintenance Plans for important Tasks

Solution 2

Go to the SQL Install Folder

“C:\Program Files\Microsoft SQL Server\MSSQL\Install”

C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Install

and run the sysdbupg.sql script.

That should add the colums to the maintenance tables and the maintenance tasks can be created.

Deprecated Features in Sql server 2008

Vivekanand — Mon, 16 Feb 2009 15:30:56 +0000

Here are the List of features that are deprecated in Sql server 2008

http://msdn.microsoft.com/en-us/library/ms143729.aspx

Assignment Operators in TSQL 2008

Vivekanand — Mon, 16 Feb 2009 13:07:15 +0000

TSQL has improved its assignment Operators in the C language convention.

In SQL SERVER 2000 or SQL SERVER 2005 the assignment operators are written as

Declare @i int

Declare @s varchar(100)

set @i = 10

set @s = ‘WORD’

set @i = @i * 40

set @s = @s + ‘PRESS’

In SQL SERVER 2008

Declare @i int = 10

Declare @s varchar(100) = ‘WORD’

set @i *= 40

set @s += ‘PRESS’

select @i,@s

In the sameway the other operators that can be used are

-= Subtraction

/= Division

%= Modulo

^= Bitwise exclusive OR

|= Bitwise OR

&= Bitwise AND