Interested to Buy Any Domain ? << Click Here >> for more details...
how do u do Performance tunning ?
- 1 Answers
- 5088 Views
- Infodat Technologies, Satyam, I also Faced
- E-Mail Answers
Answer Posted / bhaskar
• Table should have primary key
• Table should have minimum of one clustered index
• Table should have appropriate amount of non-
clustered index
• Non-clustered index should be created on columns of
table based on query which is running
• Following priority order should be followed when
any index is created a) WHERE clause, b) JOIN clause, c)
ORDER BY clause, d) SELECT clause
• Do not to use Views or replace views with original
source table
• Triggers should not be used if possible,
incorporate the logic of trigger in stored procedure
• Remove any adhoc queries and use Stored Procedure
instead
• Check if there is atleast 30% HHD is empty - it
improves the performance a bit
• If possible move the logic of UDF to SP as well
• Remove * from SELECT and use columns which are only
necessary in code
• Remove any unnecessary joins from table
• If there is cursor used in query, see if there is
any other way to avoid the usage of this (either by SELECT
… INTO or INSERT … INTO, etc)
There are few hardware upgrades can be considered as well
like separating index on different disk drive or moving
tempdb to another drive. However, I am not suggesting them
here as they are not quick way to improve the performance
of query.
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
How do I find query history in sql server?
Where the sql logs gets stored?
What is ms sql server index?
How many servers can we create in a single subscription?
What are two difference between sql azure and azure tables?
Where actually sql azure database is hosted?
List types of tables in SQL Azure?
How to include text values in sql statements?
I applied Transactional with updatable subscriptions replication on 2 tables now i want to delete those 2 tables but i cannot delete those tables as replication is running how can i stop replication for those 2 tables(but i don't want to delete those replicated tables but i need to stop the replication) how can i do that
What is parameterized reports in ssrs ?
What is the sql server 2000 version number?
When setting replication, is it possible to have a publisher as 64 bit sql server and distributor or subscribers as a 32 bit sql server?
What is model database? : SQL Server Architecture
How to list all user names in a database?
1. Tell me your daily activities 2. If sql server installation fails at time installation what will do 3. Where does the sql server installation log details are stored 4. After the installation what will you do for memory configuration 5. What is the difference between SQL max maximum memory and AWE memory 6. How will you configure AWE memory 7. How will setup an email alert for the backup job 8. After the SQL installation what are the jobs will you configure 9. What does –g mean in the sql startup parameter 10. What is the difference between Bulked log and Full recovery model 11. What is the difference between mirroring and log shipping 12. What are the steps to be followed before in-place up gradation 13. After installing the patch the sql server does not start and application team tells to rollback the changes .In this scenario what will you do
