Getting a SQL Server RowCount Without doing a Table Scan

SELECT [name]
, dbo.[fn_get_table_rowcount] ([name]) as [Row Count]
FROM sysobjects
WHERE type='U' and name != 'dtproperties'
ORDER BY [Row Count] desc
GO


----------------------------------------------------------------------
--FUNCIOTN
----------------------------------------------------------------------
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[fn_get_table_rowcount]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
DROP FUNCTION [dbo].[fn_get_table_rowcount]
GO


CREATE FUNCTION dbo.[fn_get_table_rowcount]
(
@sTableName sysname -- Table to retrieve Row Count
)
RETURNS INT -- Row count of the table, NULL if not found.
AS BEGIN

DECLARE @nRowCount INT -- the rows
DECLARE @nObjectID int -- Object ID

SET @nObjectID = OBJECT_ID(@sTableName)

-- Object might not be found
IF @nObjectID is null RETURN NULL

SELECT TOP 1 @nRowCount = rows
FROM sysindexes
WHERE id = @nObjectID AND indid < 2

RETURN @nRowCount
END
GO

SQL 2008 Data Collection

Data Collection


Manually enable data collection
Managing Data Collection Using Transact-SQL

SQL Server 2008 Data Collector – Video Tutorial

Data Collector: Remove Data Collector to Remove Associated Objects

SQL server CPU Allocation and usage

--general sql configuration
EXEC sys.sp_configure

--server available CPU
select cpu_count from sys.dm_os_sys_info

--server used cpu by sql
select scheduler_id,cpu_id, status, is_online from sys.dm_os_schedulers where status='VISIBLE ONLINE'

--server physical memory
select physical_memory_in_bytes from sys.dm_os_sys_info

UPDATE STATISTICS

sp_MSforeachtable'UPDATE STATISTICS ?;'

Custom Reports Library - SQL Server

SQL Server Manageability Team Blog
http://blogs.msdn.com/b/sqlrem/

http://blogs.msdn.com/b/sqlrem/archive/2010/06/06/mdw-overview-report-for-data-collector-mdw-report-series-part-1.aspx

http://blogs.msdn.com/b/sqlrem/archive/2010/06/19/mdw-overview-report-for-data-collector-server-activity-mdw-report-series-part-2.aspx

http://blogs.msdn.com/b/sqlrem/archive/2010/06/21/server-activity-history-report-mdw-report-series-part-3.aspx

http://blogs.msdn.com/b/sqlrem/archive/2010/06/28/server-activity-history-report-mdw-report-series-part-4.aspx

sqlserverpedia.com - powered by Quest

sp_who2 - in detail analysis with temp table

drop table #tmp

create table #tmp
(SPID int,
Status nvarchar(100),
Login nvarchar(100),
HostName nvarchar(100),
BlkBy nvarchar(100),
DBName nvarchar(100),
Command nvarchar(100),
CPUTime int,
DiskIO int,
LastBatch nvarchar(100),
ProgramName nvarchar(100),
SPID2 int,
REQUESTID int)

insert into #tmp
exec sp_who2 active

select * from #tmp order by DiskIO desc
select * from #tmp where Login !='sa' order by LastBatch asc
select * from #tmp where Status !='sleeping' and Login !='sa'

select * from #tmp where DBName = 'ces_flextronics'
--dbcc inputbuffer(492)

Finding the Lead Blocker in a Set of Blocking Process Reports

Script 1:
---------------------------------
SELECT sc.session_id AS UserSPID,
sr.blocking_session_id AS BlockingSPID,
DB_NAME(st.dbid) AS DatabaseNm,
ss.program_name AS AccessingProgram,
ss.login_name AS LoginNm,
OBJECT_NAME(st.objectid, st.dbid) AS ObjectNm,
CAST(st.text AS VARCHAR(MAX)) AS RequestSQL
--INTO #Processes
FROM sys.dm_exec_sessions ss
JOIN sys.dm_exec_connections sc ON ss.session_ID = sc.session_ID
LEFT JOIN sys.dm_exec_requests sr ON sc.connection_ID = sr.connection_ID
CROSS APPLY sys.dm_exec_sql_text (sc.most_recent_sql_handle) AS st
WHERE sc.session_id > 50 --gets us user processes
and isnull(sr.blocking_session_id,0) >0


Script 2:
---------------------------------

/*
--************************************************************************************
-- Description:    This script list the current locking block chain.
--            It will create 1 function: fn_GetLockChainSubTree
--                     1 table: LockChain
--
--
-- Parameters: NONE
--
-- Returns: Locking block chain
--
-- Created:     9/07/2008    John Liu
--
-- Typical Usage:    This script is typically used to find the block chain information
--
-- Comments: It also lists the dead lock (if any) at the end.
--      This script is for SQL 2005 and SQL 2008
--
--
-- Modifications:
--
-- Initials Date Description
-- -------- ---------- -----------------------------------------------------------
--
--************************************************************************************
*/

--***************************************Begin of create functions ********************************
--***************************************** Begin of dbo.fn_GetLockChainSubTree ************************
IF OBJECT_ID('dbo.fn_GetLockChainSubTree') IS NOT NULL DROP FUNCTION dbo.fn_GetLockChainSubTree
go

CREATE FUNCTION dbo.fn_GetLockChainSubTree(@Blocker AS INT)
RETURNS @TREE TABLE
(
Blocker INT NOT NULL,
Blocked INT NOT NULL,
lvl INT NOT NULL
)
AS
BEGIN
WITH Block_Subtree(Blocker,Blocked, lvl)
AS
(
-- Anchor Member (AM)
SELECT
Blocker
,Blocked
,0
FROM
LockChain
WHERE
Blocker = @Blocker

UNION all

-- Recursive Member (RM)
SELECT
l.Blocker
, l.Blocked
, t.lvl+1
FROM
LockChain AS l
INNER JOIN
Block_Subtree AS t
ON
l.Blocker = t.Blocked
)

INSERT INTO
@TREE
SELECT
*
FROM
Block_Subtree

RETURN
END
GO
--***************************************** End of dbo.fn_GetLockChainSubTree ************************
--***************************************End of create functions ********************************

--*************************************************************************************
--**********************************         Main section         **************************
--*************************************************************************************
-- -----------------------------------------------
-- Core processing
-- -----------------------------------------------
IF OBJECT_ID('LockChain') IS NOT NULL DROP TABLE LockChain
go

--initial the LockChain table
SELECT
Blocker = Blocking_Session_ID
,Blocked = Session_ID
INTO
LockChain
FROM
sys.dm_exec_requests
WHERE
Blocking_Session_ID <> 0

--list the locking chain
SELECT
t.*,s.host_name,s.program_name,s.login_name,s.nt_user_name
FROM
LockChain l
CROSS APPLY
fn_GetLockChainSubTree(l.Blocker) as t
INNER JOIN
sys.dm_exec_sessions s
ON
l.blocker = s.session_id
WHERE
l.blocker NOT IN (
SELECT
blocked
FROM
LockChain
)

--report any dead lock
SELECT
'Dead Lock' = 'Dead Lock'
,*
FROM
LockChain
WHERE
blocker IN (
SELECT DISTINCT
blocked
FROM
LockChain
)
AND
blocked IN (
SELECT DISTINCT
blocker
FROM
LockChain
)

--clean up    
--DROP TABLE LockChain
--DROP FUNCTION dbo.fn_GetLockChainSubTree

-- -----------------------------------------------
-- End of Core processing
-- -----------------------------------------------
--***************************************** End of Main section **********************************

SQL Server Performance Blog - Idera

Full Text Search

--Create FTS
Use ClientDB
GO
EXEC sp_fulltext_database 'enable'
GO
CREATE FULLTEXT CATALOG [FTC_LO_TEXT] WITH ACCENT_SENSITIVITY = OFF
GO
CREATE FULLTEXT INDEX ON [dbo].[lo_text] KEY INDEX [PK_lo_text] ON ([FTC_LO_TEXT]) WITH CHANGE_TRACKING AUTO)
GO
ALTER FULLTEXT INDEX ON [dbo].[lo_text] ADD ([descr])
GO
ALTER FULLTEXT INDEX ON [dbo].[lo_text] ADD ([keywords])
GO
ALTER FULLTEXT INDEX ON [dbo].[lo_text] ADD ([title])
GO
ALTER FULLTEXT INDEX ON [dbo].[lo_text] ENABLE
GO

--Drop FTS
EXEC sp_fulltext_database 'disable'
GO
DROP FULLTEXT INDEX ON lo_text
GO
IF EXISTS (SELECT * FROM sysfulltextcatalogs ftc WHERE ftc.name = N'FTC_LO_TEXT')
DROP FULLTEXT CATALOG [FTC_LO_TEXT]''
GO

--Disable Stopwords and Stoplists on FTS
ALTER FULLTEXT INDEX ON lo_text
SET STOPLIST OFF;
GO

EXEC sp_fulltext_catalog 'FTC_LO_TEXT', 'rebuild'
GO

--Rebuild FTS Catalog
ALTER FULLTEXT CATALOG FTC_LO_TEXT REBUILD


--Sample of FTS search
declare @str_decr nvarchar(50), @str nvarchar(50) , @str1 nvarchar(50) , @str2 nvarchar(50)
set @str1 = 'New'
set @str2 = 'Document'
set @str_decr = '%'+@str1+'%'

select * From lo_text lt where lt.title LIKE @str_decr-- or lt.descr LIKE @str_decr

set @str = @str1 + ' OR ' +@str2
select * from lo_text WHERE CONTAINS(title, @str)

set @str = @str1 + ' AND ' +@str2
select * from lo_text WHERE CONTAINS(title, @str)

set @str = @str1 + ' ' +@str2
select * from lo_text WHERE FREETEXT(*, @str)

set @str = '"'+@str1 + ' ' +@str2+'*"'
select * from lo_text WHERE FREETEXT(descr, @str)


NOTES:
1)If you cannot start the fdhost, please check the permission of FDLauncher Service logon account. Do you specify a user account for FDLauncher service during setup? If you didn't specify user account for FDLauncher Service, by default, FDLauncher is configured using the Local Service account. This account is not added to the SQLServerFDHostUser$$MSSQLSERVER group. To work around the issue, you need to assign Local Service account (or logon account of FDLauncher Service) to SQLServerFDHostUser$$MSSQLSERVER group. Then restart fdhost using sp_fulltext_service 'restart_all_fdhosts' procedure.

EXEC sp_fulltext_service 'restart_all_fdhosts'