title: Can I use an Expression to set a variable in a "SQL Statement Task"?
body: <p>Can I use an Expression to set a variable in a "SQL Statement Task" ?<br>
  I am designed an ETL solution loading a plain text file from a website. The user write the main parameters, like month, year, registercount, and press the processing button. The ETL solution starts. </p>
  
  <p>Until now, I am used to read/set variables with SQL statements inside same "SQL Statement Task" but sometimes they do not work properly when the solution is started from the web app with these same params used to set these variables. I have no problem to read variables in an expression but I am not able to write them. </p>