QueryLight Overview

Query light is a JDBC based Oracle database client developed using java swing.It is based on JDBC. Application has moderate sql editing capabilities. It provides basic querying and data retrieval functions. Query light is ideal for working on read only environments.

Features

Has Toad , Sqldevloper like Ctrl + enter to run query function.

Very lightweight application, consumes less than 50Mb in memory.

Provides ability to export/save queried data in excel , csv formats.

Is able to Describe most database objects with select and F4.

Can be used as an alternative to heavy database front ends where basic features / functions are needed.

Can run on Linux and Windows.

QueryLight Supports multiple database sessions

QueryLight at Work.

Source Code on GitHub : https://github.com/milind-brahme/query-light

Comments

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Plenty of times we have cyclic database blocking sessions. We have the script which runs in loop and kills them , only to see new blocking sessions have resurfaced. This is a classic scenario that happens many time due to poor application design. A was blocking B , B was blocking C. Unless you have some automated blocking session clearing script. You would run a script at point in time killing session of A. Giving the lock ownership to B. B could realize it late that he has the lock and not commit his work. So DBA again goes in and sees block kills B's session. In meantime Frustrated A logs in and start his activity again queuing him up in wait for lock retrieval . This goes on and you end up running the script 5-10 times to kill these sessions to finally clear the blocks. Note this is not a deadlock which is normally apprehended and identified by oracle. In such case we had written below plsql to clear the sessions. This basically goes in and check for locks ever...

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