The SQL Server database application from Microsoft is known for its capacity to handle numerous queries in real time in an effective manner. However with every database system, inefficient querying can place an inordinate amount of load on the server which would eventually make it slow to respond when a flood of queries comes through. As a database administrator, you should always be looking at improving your database application and optimizing your SQL queries with an eye on improving overall performance. Well it can be easily achieved if you follow the tips listed below.
- Use the Between Clause instead of IN
When you are looking to process a query where you can either go in with the “IN” clause or choose to opt for the “Between” clause then you should invariably choose “Between” as it saves considerable processing time
- Optimize the manner in which queries are returned by using the Where clause
In any database application you would come across numerous instances of Select queries that typically end up returning all the rows. Now this leads to an excessive exchange of network data and burdens the SQL server. In case you do not need to display the entire record set then you can easily choose to use the Where clause to restrict the display and reduce the result set.
- Consider using the Union All clause
Most database programmers typically tend to use numerous OR clauses whenever they need to consider a variety of data. However this is an inefficient approach and can be curtailed by using a Union All clause which proves significantly more fruitful in such circumstances.
- Using Index Seek to access Columns
In some scenarios where database columns have index linkages, it is always advisable to try the index seek method as it makes the whole process more responsive.
- Using Management Studio
The SQL Server management studio can be utilized to improve the overall performance aspects of a database instance. With the help of elements extended events and avoiding load intensive queries, response times can be drastically improved. Further one can consider using an improved index design that includes elements like filtered indexes and joins.
- Dealing with a SQL file failure
Even an optimized SQL implementation can fail due to myriad reasons. Now in case you have experienced a SQL crash and standard backup procedures do not seem to work then you would need to go in for a sql recovery using a specialist tool like the indomitable DataNumen SQL recovery. This remarkable utility can bring back the compromised data and help your data repository get back in shape. Besides standard SQL files this highly effectual tool can also be used to recover NDF files without any difficulty. The application gives you a detailed progress status during the recovery process and once the recovery is completed you can check the repair report to know all the relevant details. Interestingly the application can also tackle corrupted SQL Server 2012 files with ease.
Alan Chen is President & Chairman of DataNumen, Inc., which is the world leader in data recovery technologies, including access recovery and sql recovery software products. For more information visit https://www.datanumen.com/