[Paul M]

Originally Posted by HaMaDa4eVeR

dear marco :
I knew all vB tables have functions and jop , but the function of (word,adminlog,session) is not important , by anther meaning , if you empty these tables your vB database will not damage

I'm afraid that this sentence demonstrates quite clearly your lack of understanding of how vb works.

You seem to have randomly picked three tables.

• Adminlog - yes, not *that* important (unless you want to look back at who did something) - but then neither is moderatorlog, why one and not the other.
  
• Sessions - clearing out live users session entries is a bad idea and could log them off. Old sessions are automatically cleared anyway - this is pointless.
  
• Word - the worse of the lot - clearing this will break your search unless you use fulltext searching. Postindex is the other half of non FT searching, yet you missed that, resulting in a very broken search index.

I very rarely say a hack is a bad idea, but *this* is a bad idea.