Fragmentation in all indexes in all tables in a database

This script will create a table called Fragstats and load it with fragmentation information for all tables in the database.

SET NOCOUNT ON

DECLARE @tablename VARCHAR (128)

DECLARE @execstr VARCHAR (255)

DECLARE @objectid INT

DECLARE @indexid INT

DECLARE @frag DECIMAL

DECLARE @maxfrag DECIMAL

DECLARE @dbname VARCHAR (40)

if not exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FragStats]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)

CREATE TABLE [dbo].[FragStats] (

[ObjectName] [char] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[ObjectId] [int] NULL ,

[IndexName] [char] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[IndexId] [int] NULL ,

[Lvl] [int] NULL ,

[CountPages] [int] NULL ,

[CountRows] [int] NULL ,

[MinRecSize] [int] NULL ,

[MaxRecSize] [int] NULL ,

[AvgRecSize] [int] NULL ,

[ForRecCount] [int] NULL ,

[Extents] [int] NULL ,

[ExtentSwitches] [int] NULL ,

[AvgFreeBytes] [int] NULL ,

[AvgPageDensity] [int] NULL ,

[ScanDensity] [decimal](18, 0) NULL ,

[BestCount] [int] NULL ,

[ActualCount] [int] NULL ,

[LogicalFrag] [decimal](18, 0) NULL ,

[ExtentFrag] [decimal](18, 0) NULL ,

[TStamp] [datetime] NULL ,

[DBName] [varchar] (40) COLLATE SQL_Latin1_General_CP1_CI_AS NULL

)

-- Declare cursor

DECLARE tables CURSOR FOR

SELECT TABLE_NAME

FROM INFORMATION_SCHEMA.TABLES

WHERE TABLE_TYPE = 'BASE TABLE'

-- Create the table

CREATE TABLE #fraglist (

ObjectName CHAR (255),

ObjectId INT,

IndexName CHAR (255),

IndexId INT,

Lvl INT,

CountPages INT,

CountRows INT,

MinRecSize INT,

MaxRecSize INT,

AvgRecSize INT,

ForRecCount INT,

Extents INT,

ExtentSwitches INT,

AvgFreeBytes INT,

AvgPageDensity INT,

ScanDensity DECIMAL,

BestCount INT,

ActualCount INT,

LogicalFrag DECIMAL,

ExtentFrag DECIMAL)

-- Open the cursor

OPEN tables

-- Loop through all the tables in the database

FETCH NEXT

FROM tables

INTO @tablename

WHILE @@FETCH_STATUS = 0

BEGIN

-- Do the showcontig of all indexes of the table

INSERT INTO #fraglist

EXEC ('DBCC SHOWCONTIG (''' + @tablename + ''')

WITH FAST, TABLERESULTS, ALL_INDEXES, NO_INFOMSGS')

FETCH NEXT

FROM tables

INTO @tablename

END

-- Close and deallocate the cursor

CLOSE tables

DEALLOCATE tables

insert into [FragStats] select *,getdate(),@dbname from #Fraglist

drop table #fraglist

go

Real-Time Blocker and Waiter Query

This lists whats blocked and why. The unique feature of this script is that it shows both the SQL statement that is blocked and the SQL statement waiting for the block.

select t1.resource_type

,db_name(resource_database_id) as [database]

,t1.resource_associated_entity_id as [blk object]

,t1.request_mode

,t1.request_session_id -- spid of waiter

,(select text from sys.dm_exec_requests as r --- get sql for waiter

cross apply sys.dm_exec_sql_text(r.sql_handle) where r.session_id = t1.request_session_id) as waiter_text

,t2.blocking_session_id -- spid of blocker

,(select text from sys.sysprocesses as p --- get sql for blocker

cross apply sys.dm_exec_sql_text(p.sql_handle) where p.spid = t2.blocking_session_id) as blocker_text

from

sys.dm_tran_locks as t1,

sys.dm_os_waiting_tasks as t2

where

t1.lock_owner_address = t2.resource_address

go

Longest running query - sys.dm_exec_query_stats




This script produces a list of queries, the max and average execution time plus the number of executions since the last DBCC call.
 

SELECT DISTINCT TOP 10
t.TEXT AS QueryName,
s.execution_count AS ExecutionCount,
s.max_elapsed_time AS MaxElapsedTime,
ISNULL(s.total_elapsed_time / 1000 / NULLIF(s.execution_count, 0), 0) AS AvgElapsedTime,
s.creation_time AS LogCreatedOn,
ISNULL(s.execution_count / 1000 / NULLIF(DATEDIFF(s, s.creation_time, GETDATE()), 0), 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, ExecutionCount DESC

GO