1. On which drive the database files(mdf & ldf) are located?
use master
select *from sysaltfiles where filename like 'd%'
(OR)
select *from master..sysaltfiles where filename like 'd%'
2.How to shrinklog file if it is full?
backup log dbname with no_log
dbcc shrinkfile(2)
3. how to see open transations in a database?
dbcc opentran
4. HOW TO see if perticlular process is blocked?
Use master
select * from sysprocessess where blocked>0 and spid=57
5. why buffer cache hit ratio <90?
if the bottlenecks are there
then the number of pages read in to the cache will vary
and the ratio of finding the data by the server in the cache will decrease
6 how to find attribute of perticula file?
Execute spFileDetails 'c:\autoexec.bat'
7. how to see the status of database?
dbcc showfilestats
8.How to see the Cpu usage?(if buffer cache hit raio<90)
select *from sys.sysprocesses order by cpu asc
9.How to find out the info of a specific table on a database?
select * from sysobjects where name like '%table_name%'
10. What is Undo File? Why it is required?
Undo file is needed in standby state because while restoring the log backup, uncommited transactions will be recoreded to the undo file and only commited transactions will be written to disk there by making users to read the database. When you restore next tlog backup SQL server will fetch the uncommited transactions from undo file and check with the new tlog backup whether the same is commited or not. If its commited the transactions will be written to disk else it will be stored in undo file until it gets commited or rolledback.
11.How to get the data the from linked server?
Select * from LinkedServer.DBName.SchemaName.TableName
12.How to find the service pack version?
SELECT SERVERPROPERTY('PRODUCTLEVEL')
13.How to see the collation setting for server level?
SP_HELPSORT
14.How to see log usage info in a database?
select * from sys.databases where name like '%log_reuse_wait_desc%'
15.How to see the connection info by using DMV'S?
Select * from sys.dm_exec_sessions
16. How to see the transaction isolation level?
DBCC USEROPTIONS
17.SQL Server 2000 database compatible level to SQL Server 2005
EXEC sp_dbcmptlevel AdventureWorks, 90;
18.How to see the memory ocupation of eache query running under Query Analyzer
select * from sys.dm_exec_query_memory_grants
19.How to clear the data from buffer cashe
DBCC DROPCLEANBUFFERS
20.How to see how much space tempdb is allocated for perticulas task
Select * from sys.dm_db_session_space_usage
OR
sys.dm_db_task_space_usage
21.The following DMV query can be used to get useful information about the index usage for all objects in all databases
Select * from from sys.dm_db_index_usage_stats
order by object_id, index_id
22.The following query to list all the schedulers and look at the number of runnable tasks.
Select * from from
sys.dm_os_schedulers where scheduler_id < 255
23.Which Query is taking more cpu time
select * from sys.dm_exec_query_stats
24.How to find whether any active requests are running in parallel for a given session by using the following query.
select * from sys.dm_exec_requests
25. if sql server installation failed in sql2000 whrere can i see tha failed info?
sqlstp.log
26. How to see the lock info?
select * from sys.dm_tran_locks
27. How to open cluadmin from windows 2008 server?
cluadmin.msc
28. How to backup by using T-sql Query?
backup database DB name to disk = ‘path\full.bak’ with compression,stats=1
backup database DB name to disk = ‘path\diff.bak’ with compression,stats=1
backup log DB name to disk = ‘path\log_trn’ with compression,stats=1
29. How to Restore by using T-sql Query?
Restore database dbname from disk =’path\full.bak’ with move logical name to ‘path.mdf’,move logical name to ‘path log.ldf’,norecovery,stats=1
Restore database DB name from disk =’path\diff.bak’ with norecovery,stats=1
Restore log DB name from disk = ‘path\log.trn’ with norecovery,stats=1
29.How to find Logical names?
Restore filelistonly from disk = ‘path’
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