Querying for large resultsets may cause ADS to run out of memory or to run low on memory. The user may need to increase memory limit for Aqua Data Studio and restart the application. As a Java application, Aqua Data Studio is limited to the memory allocated to the JVM at startup. You may change your setting according to the Operating System you are working on.

Windows
• Windows EXE execution In your installation directory (default: "C:\Program Files\Aqua Data Studio") there is a file called datastudio.cfg which contains JVM parameters for startup. In this file you may modify the 3rd line which starts with "-Xmx256M ...", where '256' is equal to the amount of memory allocated to Aqua Data Studio. You can change this number to increase your memory to 512MB, 1024MB or larger. Once you have made your changes, restart Aqua Data Studio.


• Windows .bat execution In your installation directory there are two files called datastudio-bundled.bat and datastudio.bat which are used to start Aqua Data Studio. In either of these files modify the last line which starts with "java -cp ..." or ".\jre\bin\java -Xmx256M ...", where '256' is equal to the amount of memory allocated to Aqua Data Studio. You can change this number to increase your memory to 512MB, 1024MB or larger. Or add the option if it doesn't exist. Once you have made your changes, restart Aqua Data Studio.

Linux
• Linux Application In your installation directory there are two files called datastudio-bundled.sh and datastudio.sh which are used to start Aqua Data Studio. In either of these files modify the last line which starts with "java -cp ..." or ".\jre\bin\java -Xmx256M ...", where '256' is equal to the amount of memory allocated to Aqua Data Studio. You can change this number to increase your memory to 512MB, 1024MB or larger. Or add the option if it doesn't exist. Once you have made your changes, restart Aqua Data Studio.

OSX
• OSX Double Clickable Application The OSX double-clickable application is actually a directory structure with an extension of ".app". You may modify the files in this directory structure by right-clicking on the Aqua Data Studio icon and selecting "Show Package Contents" where you can browse to edit Contents/Info.plist with TextEdit. This file is an XML file containing startup parameters for Aqua Data Studio. To change or increase the memory add the following XML tags in the tags right before the MainClass where '256' is the amount of memory you want for Aqua Data Studio. Example ...

    ...
    
        VMOptions
        -Xmx256m
        MainClass
        com.aquafold.datastudio.DataStudio
        JVMVersion
        1.5+
    ...

		

• OSX Unix Application In your installation directory there is a file called datastudio.sh which is used to start Aqua Data Studio. In this file modify the last line which starts with "java -cp ...", where '256' is equal to the amount of memory allocated to Aqua Data Studio. You can change this number to increase your memory to 512MB, 1024MB or larger. Or add the option if it doesn't exist. Once you have made your changes, restart Aqua Data Studio.