Category Archives: SQL

Dbeaver Java heap space error during SQL Query

How to fix Dbeaver java heap space error while executing SQL Query

While executing the SQL Query in Dbeaver, I am getting java heap space error. It occurred due to large tables not able to fetched in Dbeaver heap space.

java.lang.OutOfMemoryError: Java heap space

Solution:

From open the dbeaver shortcut you can add the following line in dbeaver shortcut key:

-vmargs -Xmx*m    

* -- 2048 or 4096

Example
-vmargs -Xmx4096m   

From windows you can edit the shortcut by click on right click — > go to properties –> Go to Target –> Add this line at last -vmargs -Xmx4096m –> Apply and Ok

Directly open from command prompt with admin option will fixed the error:

dbeaver -vmargs -Xmx4096m

In Linux, you can also use as:

[root@Linux1 Downloads]# dbeaver -vmargs -Xmx4096m

If not have permissions to edit short cut:

if you don’t have permission then copy the target data –> create a new short cut –> paste the copied target data and add this -vmargs -Xms4096m at last –> save the short cut.