將數據庫中所有表的所有的內容選一遍:
IF object_id('tempdb..#temp') is not null
BEGIN
DROP TABLE #temp
END
DECLARE @index int
DECLARE @count int
DECLARE @schemaname varchar(50)
DECLARE @tablename varchar(50)
set @index=1
set @count=(select count(*) from sysobjects where xtype='U')
select row_number() over(order by name) as rowNumber,name,
( SELECT a.name from sys.tables t inner join sys.schemas a
ON t.schema_id=a.schema_id
WHERE t.name=ob.name) as schemaname
into #temp from sysobjects ob where xtype='U'
WHILE(@index<@count)
BEGIN
set @schemaname=(SELECT schemaname from #temp where rowNumber=@index)
set @tablename=(SELECT name from #temp where rowNumber=@index)
exec('select * from '+ @schemaname+'.'+@tablename)
set @index=@index+1
END
通常來說,需要看如下幾個計數器(下面資料參考自http://www.sqlservercentral.com/articles/Miscellaneous/2634/):
- Memory: Pages/sec
- Memory: Available Bytes
- Network Interface: Bytes Total/Sec
- Physical Disk: % Disk time
- Physical Disk: Avg. Disk Queue Length
- Processor: % Processor Time
- System: Processor Queue Length
- SQL Server Buffer: Buffer Cache Hit Ratio
- SQL Server General: User Connections
Memory: Pages/sec:最好不要大於5,否則有內存問題
Memory: Available Bytes :這個可以望文生義,不解釋
Network Interface: Bytes Total/Sec :如果這個計數器下降的太快有可能是網絡出現問題
Physical Disk: Avg Disk Queue Length:每個物理盤的等待隊列,大於2有可能是IO瓶頸問題
Physical Disk: % Disk time: 讀/寫活動的百分比,不要大於90%,和上面的計數器一起可以顯示IO瓶頸
Processor: % Processor Time :CPU瓶頸,不要大於90%,大多數情況下,內存和IO瓶頸要更多
System: Processor Queue Length :同樣,和上面計數器一起找出IO瓶頸
SQL Server Buffer: Buffer Cache Hit Ratio :緩存命中率,不要低於85%,否則考慮加內存
SQL Server General:並發數,壓測時快到某一瓶頸看看這個數字,可以作為基准(BaseLine)記下來