SQL statements are not logged, so you need to increase the max-length. This will expose more of the SQL-statement, but it will still be normalized (i.e. ? for constant values). If you want to see SQL parameter values also you must change the SQL normalization in the agent profile. In this latter case great care is highly advised as this will cause each individual SQL statement to be captured as a separate metric - also known as metric explosion. A preferable option is to do this in a controlled manner (test/QA environment and/or for a very limited period). Specifically check if your metric count is close to your configured limit as the collector will report overload to the MoM when it hits its metric limit and the MoM will reassign agents for that collector to other collectors that will then in turn realize increased metric counts (because they may not have seen this "redirected" metric before) and you may experience a domino effect if these collectors are also close to their metric limits.