var db = Database.Open("DBName");
var mySQL = "";

// WHAT LEVEL IS THE USER
if (PageData["editorLevel"] < 11){
    //set the sql
    //perform the db.Query
}else if (PageData["editorLevel"]<51){
    //set the sql
    //perform the db.Query
}else if (PageData["editorLevel"] < 101){
    //set the sql
    //perform the db.Query
}

var myResults = db.Query(mySQL, parameter list)