Good evening
First, thanks to all of you for your suggestions. I think I'll try it with the TSQL- or Watcom-Grammar. I thought it would be nice to build a tool for my colleagues to lower their workload. We're running a lot of really big lists of statements and I'm looking for a way, to parameterize the blocks of SQL code, so you can use them like lego-bricks... 
Best regards
Alex