Problems with Oracle sql developer

Hello

I have problems with my Oracle SQL developer 3.0.04 Version. It makes windows unstable once the query tries to display too many rows of data (for example, 300 k). Is there a way to solve this problem in addition to increasing the amount of physical memory? I currently have only 1 GB of RAM on this machine. Thank you.

Hello

Upgrading hardware can be a very satisfying experience, especially as it is almost always little expensive compared to the value of your time. Virtual memory / paging on the Windows and PC hardware is a huge disappointment, so more memory on Windows is a cure-all. With more and more common 64-bit operating systems, laptop computers and the PC is currently available with 8G of memory.

That said, I think few users have a business case for the visualization of the hundreds of thousands of lines via a graphical user interface.

Getting back to what concerns the management of memory in java, I want to put in a plug for the garbage and first new Garbage Collector. It will be the production in JDK 1.7, but can be found in the JDK 1.6 u14 & high in experimental option. The most recent revision update, the better it is. Just add something like this in your sqldeveloper.conf file:

AddVMOption - XX: + UnlockExperimentalVMOptions
AddVMOption - XX: + UseG1GC
AddVMOption - XX: + G1YoungGenSize = 25 m
AddVMOption - XX: + G1ParallelRSetUpdatingEnabled
AddVMOption - XX: + G1ParallelRSetScanningEnabled

It does a much better job of actually release unused memory in the context of the o/s.
To learn more on this subject: http://www.oracle.com/technetwork/java/javase/tech/g1-intro-jsp-135488.html

Gary Graham
SQL DeveloperTeam

Tags: Database

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