stringsql="SELECT TVNAME AS TableName, COLNAME,COMMENT$ AS ColumnDescription from SYSCOLUMNCOMMENTS WHERE TVNAME='"+tableName.ToUpper()+"' ORDER BY TVNAME";
stringsql="SELECT TVNAME AS TableName, COLNAME as DbColumnName ,COMMENT$ AS ColumnDescription from SYSCOLUMNCOMMENTS WHERE TVNAME='"+tableName.ToUpper()+"' ORDER BY TVNAME";