Category Archives: SQL Server

How to install IIS on Windows 7?

IIS is mandatory for the Virtual Server installation, in this article I will guide you how you can install the IIS on windows 7 or windows vista.

 

Step 1: click Start, and then click Control Panel

 

 

Step 2: In the Control Panel, click Programs then Click Turn Windows features on or off and from Windows Features dialog box Select Internet Information Services to choose the default features for installation.

T-SQL Script to find out the database file size, space used and available free space

While troubleshooting disk space issue, it is essential to know about the database file size statistics. You can execute below script to get database file size information.

set nocount on

create table #dbfileInfo(
name varchar(300),
location varchar(300),
filesizeMB decimal(9,2),
spaceUsedMB decimal(9,2),
FreespaceMB decimal(9,2))

declare @mySQL nvarchar(2000)
DECLARE @dbName varchar(MAX)
DECLARE @cur_DBName CURSOR

SET @cur_DBName = CURSOR FOR
select name from sys.databases

OPEN @cur_DBName
FETCH NEXT
FROM @cur_DBName INTO @dbName
WHILE @@FETCH_STATUS = 0
BEGIN
PRINT @dbName
if DATABASEPROPERTYEX(@dbName, 'status') = 'ONLINE'
begin
select @mySQL = 
    '
        use ' + @dbname + '
        INSERT INTO #dbfileInfo
        select
      name
    , filename
    , convert(decimal(12,2),round(a.size/128.000,2)) as FileSizeMB
    , convert(decimal(12,2),round(fileproperty(a.name,''SpaceUsed'')/128.000,2)) as SpaceUsedMB
    , convert(decimal(12,2),round((a.size-fileproperty(a.name,''SpaceUsed''))/128.000,2)) as FreeSpaceMB
    from dbo.sysfiles a
    '
    exec sp_executesql @mySQL
end
FETCH NEXT
FROM @cur_DBName INTO @dbName

END
CLOSE @cur_DBName
DEALLOCATE @cur_DBName
GO

select * from #dbfileInfo
drop table #dbfileInfo

FileOutput

ORIGINAL_LOGIN() and SUSER_SNAME() functions

ORIGINAL_LOGIN() function returns the name of the original login that connected to the instance of SQL Server and is used to identify original login in all sessions. Even though you will do the security context switch it will return the original login name.

SUSER_SNAME returns the name of user in the current security context.

--connect SQL Using LoginDEMO account
SELECT ORIGINAL_LOGIN() Original_Login_func, SUSER_SNAME() Suser_Name_Login_Func

--Executing query using LoginTest account
execute as login = 'LoginTest'
SELECT ORIGINAL_LOGIN() Original_Login_func, SUSER_SNAME() Suser_Name_Login_Func
revert

--Again executing query be reverting the change
SELECT ORIGINAL_LOGIN() Original_Login_func, SUSER_SNAME() Suser_Name_Login_Func

Check below output image for more information. I connected SQL Server using LoginDemo account.
New

How to monitor SQL Server Services of multiple instances?

Problem:
I have a need to monitor the SQL Server Services in my environment. Are there any programmatic options to do so? Check out this tip to learn more.

Solution:
http://www.mssqltips.com/sqlservertip/2867/steps-to-monitor-the-sql-server-services/