Optimized Database access
Optimized Database Interaction:
While writing applications for interacting with database using JDBC or using ORM tools like hibernate, we face the problem of optimizing the memory and resource usage. Some tips that would be handy in this:
1. Always close the statements and other resources object after use.
2. Select the specific required fields instead of getting all fields.
eg.
Use
Select OrderId,ItemId from orderDetails
instead of
select * from orderDetails
3. Use Connection pools
4. Prefer stored procedures instead of direct SQL
5. Turn autocommit off if not using stored procedures but dont let transactions wait for too long.
6. Tune the SQL to return the minimised data return.
7. User joins instead of sub-queries if possible.
8. Cache data to avoid multiple DB calls for the same data.
While writing applications for interacting with database using JDBC or using ORM tools like hibernate, we face the problem of optimizing the memory and resource usage. Some tips that would be handy in this:
1. Always close the statements and other resources object after use.
2. Select the specific required fields instead of getting all fields.
eg.
Use
Select OrderId,ItemId from orderDetails
instead of
select * from orderDetails
3. Use Connection pools
4. Prefer stored procedures instead of direct SQL
5. Turn autocommit off if not using stored procedures but dont let transactions wait for too long.
6. Tune the SQL to return the minimised data return.
7. User joins instead of sub-queries if possible.
8. Cache data to avoid multiple DB calls for the same data.
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