XPost: comp.database.oracle, comp.database.oracle.misc, comp.dat   
   bases.oracle.misc   
   From: asnews@dsgml.com   
      
   I'm reversing the normal order of LIKE, with the column on the right side:   
      
   SELECT domain   
   FROM tbl_domain   
   WHERE 'com.hotmail.subdomain' LIKE domain || '%'   
      
   This works, but will this query use an index? If not, is there any way I   
   can optimize this? I have flexibility in how I will store the data (as   
   you can see I reversed the domain sections for this test).   
      
   If I store .hotmail.com (stored here as com.hotmail.) in the database, I   
   want to be able to match subdomain.hotmail.com, etc. Or if I store   
   .mail.google.com in the DB, I want to match subdomain.mail.google.com   
   (but if .mail.google.com is stored in the DB, then .google.com should   
   NOT match).   
      
   The query as written, technically should be index search able - it just   
   needs to look for values starting with c then work through each letter   
   of the rest of com.hotmail.subdomain and only look at values starting   
   with each prefix, but I don't know if oracle actually does that.   
      
   Perhaps a totally different storage method?   
      
   	-Ariel   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)