sql server性能分析--查询死锁和阻塞的sql语句

-- 查询死锁和阻塞的sql语句
while   1 > 0
begin
insert   into  tb(sqlt,ios)
select   SUBSTRING (st. text , (qs.statement_start_offset / 2 )  +   1 ,
         (( CASE  statement_end_offset 
           WHEN   - 1   THEN   DATALENGTH (st. text )
           ELSE  qs.statement_end_offset  END  
             -  qs.statement_start_offset) / 2 )  +   1 ),a.physical_io  from  master..sysprocesses a
  cross  apply sys.dm_exec_sql_text(a.sql_handle) b
where  (b. text   like   ' %select% '   or  b. text   like   ' %insert% '  
or  b. text    like   ' %update% '   or
b. text   like   ' %delete% ' )  and  a.blocked = 0   and  b. text   not   like   ' %master..sysprocesses% '
and  b. text   not   like   ' %SERVERPROPERTY% '
end



CREATE   TABLE   [ dbo ] . [ tb ] (
     [ id ]   [ int ]   IDENTITY ( 1 , 1 )  NOT   NULL ,
     [ sqlT ]   [ varchar ] ( 8000 )  NULL ,
     [ sdate ]   [ datetime ]   NULL ,
     [ ios ]   [ int ]   NULL
)  ON   [ PRIMARY ]



select   *   from  tb   order   by  ios  desc   where  sqlt  like   ' %update workflowstep set isfinished=1% '