Get All the fields in a table through code

The idea behind writing this job is to make clear the concepts of sqlDictionay and how to get the fields from a table. Also a little introduction to file generation class(TextBuffer).This job create a CSV file by name fieldlist in C: drive

static void fieldsInTable(Args _args)
{

str fieldList = '';
SqlDictionary sqlDictionary;
TextBuffer buffer = new TextBuffer();
;
while select * from sqlDictionary where sqlDictionary.tabId==tablenum(salestable)
{
fieldList += sqlDictionary.sqlName;
fieldlist += '\r';
}
if (fieldList)
fieldList = subStr(fieldList,1,strLen(fieldList)-1);
buffer.setText(fieldlist);
buffer.toFile("c:\\fieldslist.csv");
}