There are thousands of queries submitted per minute and it is too much data.
But, To avoid the performance impact on the database due to these logged queries,We need to be pro-active and choosy about the data we want to log.
So we save the space, resources,performance and etc etc.
Note : DBQL can only be improvised but can’t be ignored.Its a pillar for Admins as well,helps in disasters 
But,if space and other issues are concerened, below tips can help you some:
