MCITP

MCITP

Friday, September 30, 2011

Finding all objects that are dependent on table except table.


SELECT DISTINCT
CASE
WHEN so.type = 'P' THEN 'Procedure'
WHEN so.type ='TR' THEN 'Trigger'
WHEN so.type = 'FN' THEN 'Scalar Function'
WHEN so.type = 'TF' THEN 'Table Function'
WHEN so.type = 'V' THEN 'View'
WHEN so.type = 'U' THEN 'USERTABLE'
ELSE NULL
END as Object_Type,
so.name as Dependent_objects
FROM sysobjects so
INNER JOIN sysdepends sd
ON so.id = sd.id
WHERE sd.depid = OBJECT_ID('Table_Name')
GO


Finding all dependent table in a given database in SQL Server


DECLARE @mastertable VARCHAR(100)
DECLARE @TableCompleteName VARCHAR(100)
DECLARE @tablesname VARCHAR(1000)

CREATE TABLE #temptable
    (
      tablecompletename VARCHAR(100),
      tablename VARCHAR(1000)
    )


DECLARE tmp_cur CURSOR static
    FOR SELECT  s.name + '.' + o.name,
                o.name
        FROM    sys.objects o
                INNER JOIN sys.schemas s ON o.schema_id = s.schema_id
        WHERE   type = 'U'
        ORDER BY s.name,
                o.name
   
OPEN tmp_cur
      --FETCH
   
FETCH FIRST FROM tmp_cur INTO @TableCompleteName, @mastertable
WHILE @@FETCH_STATUS = 0
    BEGIN


        SELECT  @tablesname = COALESCE(@tablesname + ',', '') + s.name + '.'
                + OBJECT_NAME(FKEYID)
        FROM    SYSFOREIGNKEYS
                INNER JOIN sys.objects o ON o.object_id = SYSFOREIGNKEYS.fkeyid
                INNER JOIN sys.schemas s ON s.schema_id = o.schema_id
        WHERE   OBJECT_NAME(RKEYID) = @mastertable
               
        INSERT  INTO #temptable
                (
                  tablecompletename,
                  tablename
                )
                SELECT  @TableCompleteName,
                        COALESCE(@tablesname, '')
        SELECT  @tablesname = NULL
        FETCH NEXT FROM tmp_cur INTO @TableCompleteName, @mastertable
    END
 
SELECT  tablecompletename AS TableName, tablename AS DependentTables
FROM    #temptable

DROP TABLE #temptable

CLOSE tmp_cur
DEALLOCATE tmp_cur




Finding all dependent table on a given table in a database present in SQL Server


SELECT
pt.TABLE_NAME AS primarytable,
fk.TABLE_NAME AS dependent_table,
cu.COLUMN_NAME AS column_linking_the_two_tables,
c.CONSTRAINT_NAME AS keyName
FROM
INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS c
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS fk ON
c.CONSTRAINT_NAME = fk.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk ON
c.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE cu ON
c.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
INNER JOIN (
SELECT tc.TABLE_NAME, kcu.COLUMN_NAME
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE kcu
ON tc.CONSTRAINT_NAME = kcu.CONSTRAINT_NAME
WHERE tc.CONSTRAINT_TYPE = 'PRIMARY KEY'
) pt ON pt.TABLE_NAME = pk.TABLE_NAME
WHERE pk.TABLE_NAME = 'TableName_on_which_dependent_table_is_required'
ORDER BY dependent_table ASC;


Top 10 Longest running queries in SQL Server.

SELECT DISTINCT TOP 10
t.TEXT QueryName,
s.execution_count AS ExecutionCount,
s.max_elapsed_time AS MaxElapsedTime,
ISNULL(s.total_elapsed_time / s.execution_count, 0) AS AvgElapsedTime,
s.creation_time AS LogCreatedOn,
ISNULL(s.execution_count / DATEDIFF(s, s.creation_time, GETDATE()), 0) AS FrequencyPerSec
FROM sys.dm_exec_query_stats s
CROSS APPLY sys.dm_exec_sql_text( s.sql_handle ) t
ORDER BY
s.max_elapsed_time DESC
GO


Wednesday, September 21, 2011

Generating all logins with password in SQL SERVER 2005/2008/2008 R2

To get a list of all SQL SERVER Logins with password in SQL SERVER2005/2008/2008 R2

Step 1 :- Execute the script

USE master
GO
IF OBJECT_ID ('sp_hexadecimal') IS NOT NULL
  DROP PROCEDURE sp_hexadecimal
GO
CREATE PROCEDURE sp_hexadecimal
    @binvalue varbinary(256),
    @hexvalue varchar (514) OUTPUT
AS
DECLARE @charvalue varchar (514)
DECLARE @i int
DECLARE @length int
DECLARE @hexstring char(16)
SELECT @charvalue = '0x'
SELECT @i = 1
SELECT @length = DATALENGTH (@binvalue)
SELECT @hexstring = '0123456789ABCDEF'
WHILE (@i <= @length)
BEGIN
  DECLARE @tempint int
  DECLARE @firstint int
  DECLARE @secondint int
  SELECT @tempint = CONVERT(int, SUBSTRING(@binvalue,@i,1))
  SELECT @firstint = FLOOR(@tempint/16)
  SELECT @secondint = @tempint - (@firstint*16)
  SELECT @charvalue = @charvalue +
    SUBSTRING(@hexstring, @firstint+1, 1) +
    SUBSTRING(@hexstring, @secondint+1, 1)
  SELECT @i = @i + 1
END

SELECT @hexvalue = @charvalue
GO

IF OBJECT_ID ('sp_help_revlogin') IS NOT NULL
  DROP PROCEDURE sp_help_revlogin
GO
CREATE PROCEDURE sp_help_revlogin @login_name sysname = NULL AS
DECLARE @name sysname
DECLARE @type varchar (1)
DECLARE @hasaccess int
DECLARE @denylogin int
DECLARE @is_disabled int
DECLARE @PWD_varbinary  varbinary (256)
DECLARE @PWD_string  varchar (514)
DECLARE @SID_varbinary varbinary (85)
DECLARE @SID_string varchar (514)
DECLARE @tmpstr  varchar (1024)
DECLARE @is_policy_checked varchar (3)
DECLARE @is_expiration_checked varchar (3)

DECLARE @defaultdb sysname

IF (@login_name IS NULL)
  DECLARE login_curs CURSOR FOR

      SELECT p.sid, p.name, p.type, p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin FROM
sys.server_principals p LEFT JOIN sys.syslogins l
      ON ( l.name = p.name ) WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name <> 'sa'
ELSE
DECLARE login_curs CURSOR FOR

      SELECT p.sid, p.name, p.type, p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin FROM
sys.server_principals p LEFT JOIN sys.syslogins l
      ON ( l.name = p.name ) WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name = @login_name
OPEN login_curs

FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin
IF (@@fetch_status = -1)
BEGIN
  PRINT 'No login(s) found.'
  CLOSE login_curs
  DEALLOCATE login_curs
  RETURN -1
END
SET @tmpstr = '/* sp_help_revlogin script '
PRINT @tmpstr
SET @tmpstr = '** Generated ' + CONVERT (varchar, GETDATE()) + ' on ' + @@SERVERNAME + ' */'
PRINT @tmpstr
PRINT ''
WHILE (@@fetch_status <> -1)
BEGIN
  IF (@@fetch_status <> -2)
  BEGIN
    PRINT ''
    SET @tmpstr = '-- Login: ' + @name
    PRINT @tmpstr
    IF (@type IN ( 'G', 'U'))
    BEGIN -- NT authenticated account/group

      SET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' FROM WINDOWS WITH DEFAULT_DATABASE = [' + @defaultdb + ']'
    END
    ELSE BEGIN -- SQL Server authentication
        -- obtain password and sid
            SET @PWD_varbinary = CAST( LOGINPROPERTY( @name, 'PasswordHash' ) AS varbinary (256) )
        EXEC sp_hexadecimal @PWD_varbinary, @PWD_string OUT
        EXEC sp_hexadecimal @SID_varbinary,@SID_string OUT

        -- obtain password policy state
        SELECT @is_policy_checked = CASE is_policy_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END FROM sys.sql_logins WHERE name = @name
        SELECT @is_expiration_checked = CASE is_expiration_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END FROM sys.sql_logins WHERE name = @name
         SET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' WITH PASSWORD = ' + @PWD_string + ' HASHED, SID = ' + @SID_string + ', DEFAULT_DATABASE = [' + @defaultdb + ']'

        IF ( @is_policy_checked IS NOT NULL )
        BEGIN
          SET @tmpstr = @tmpstr + ', CHECK_POLICY = ' + @is_policy_checked
        END
        IF ( @is_expiration_checked IS NOT NULL )
        BEGIN
          SET @tmpstr = @tmpstr + ', CHECK_EXPIRATION = ' + @is_expiration_checked
        END
    END
    IF (@denylogin = 1)
    BEGIN -- login is denied access
      SET @tmpstr = @tmpstr + '; DENY CONNECT SQL TO ' + QUOTENAME( @name )
    END
    ELSE IF (@hasaccess = 0)
    BEGIN -- login exists but does not have access
      SET @tmpstr = @tmpstr + '; REVOKE CONNECT SQL TO ' + QUOTENAME( @name )
    END
    IF (@is_disabled = 1)
    BEGIN -- login is disabled
      SET @tmpstr = @tmpstr + '; ALTER LOGIN ' + QUOTENAME( @name ) + ' DISABLE'
    END
    PRINT @tmpstr
  END

  FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin
   END
CLOSE login_curs
DEALLOCATE login_curs
RETURN 0
GO

Step 2 :- Exec sp_help_revlogin on master database.

Copy the result.

Step 3:-  Paste the result on the new server where Logins need to be created and execute the script.

Checking the blocking session on a particular database in SQL SERVER 2005/2008/2008 R2

Use databasename
SELECT
db.name DBName,
tl.request_session_id,
wt.blocking_session_id,
OBJECT_NAME(p.OBJECT_ID) BlockedObjectName,
tl.resource_type,
h1.TEXT AS RequestingText,
h2.TEXT AS BlockingTest,
tl.request_mode
FROM sys.dm_tran_locks AS tl
INNER JOIN sys.databases db ON db.database_id = tl.resource_database_id
INNER JOIN sys.dm_os_waiting_tasks AS wt ON tl.lock_owner_address = wt.resource_address
INNER JOIN sys.partitions AS p ON p.hobt_id = tl.resource_associated_entity_id
INNER JOIN sys.dm_exec_connections ec1 ON ec1.session_id = tl.request_session_id
INNER JOIN sys.dm_exec_connections ec2 ON ec2.session_id = wt.blocking_session_id
CROSS APPLY sys.dm_exec_sql_text(ec1.most_recent_sql_handle) AS h1
CROSS APPLY sys.dm_exec_sql_text(ec2.most_recent_sql_handle) AS h2
GO




To check logins which are DISABLED in SQL Server

To check Logins which are disabled in SQL SERVER 2005/2008/2008 R2

select name,is_disabled,* from sys.server_principals where is_disabled = '1'

To check which logins have denied access to SQL Server.

To check LOGINS which have denied access to SQL SERVER 2005/2008/2008 R2

select name,denylogin from sys.syslogins where denylogin ='1' 


To check LOGINS which have denied access to SQL SERVER 2000.


select name,denylogin from syslogins where denylogin = '1' 

How to run a script file in SQL Server and get output direct into text file.

This is a method by which you can run any script file and get the output directly into text file.

1. Without using SSMS (SQL Server Management Studio)

sqlcmd -S Servername\InstanceName  -i C:\filename.sql -o C:\result.txt

e.g. Suppose file name is info.sql and servername is test (default instance)

a. Copy the file info.sql in C drive.
b. open the cmd shell and paste the command written below
    sqlcmd -S test  -i C:\info.sql -o C:\result.txt
c. Enter

See the ouptut of the query in the result.txt file created in C drive of the server.

2. Using SSMS

a. Copy the script in the new query.
b. Press CRTL+F
c. Press F5.

Get the result in text file.

First Post

Hi All,


This is my first post on my blog. I don't know what to write, just want to say wish me best of luck so that i am become a good blogger and one of the best SQL DBA in world. From now a new journey begins in my life, if I make any mistake, the please forgive  me because I am new to this blogging world and needs some time to understand this.

Thanks & regards
Shashank Srivastava
SQL DBA



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