How database API functions work

 function getDynamicBindings(ss) 
{ 
    var serverModel = dw.getDocumentDOM().serverModel.getServerName(); 
    var bindingsAndTypeArray = new Array(); 
    var connName    =    ss.connectionName; 
    var statement = ss.source; 
    var rsName    = ss.rsName; 
 
    // remove SQL comments 
    statement = statement.replace(/\/\*[\S\s]*?\*\//g, " "); 
    var bIsSimple = ParseSimpleSQL(statement); 
    statement = stripCFIFSimple(statement); 
 
    if (bIsSimple) { 
    statement = RemoveWhereClause(statement,false); 
    } else { 
    var pa = new Array(); 
 
        if (ss.ParamArray != null) { 
        for (var i = 0; i < ss.ParamArray.length; i++) { 
            pa[i] = new Array(); 
            pa[i][0] = ss.ParamArray[i].name; 
            pa[i][1] = ss.ParamArray[i].value; 
        } 
        } 
     
    var statement = replaceParamsWithVals(statement, pa, serverModel); 
} 
    bindingsAndTypeArray = MMDB.getColumnAndTypeList(connName, statement); 
    return bindingsAndTypeArray; 
}