Question

SQL>  DECLARE
2    TotalUpd   NUMBER(36) := 0;
3  BEGIN
4   dbms_output.put_line ('Job Start time............... : ' || to_char(SYSDATE, '             hh24:mi:ss'));
5   UPDATE Asset SET _status = 'PROGRESS' WHERE status is null;
6   TotalUpd := SQL%ROWCOUNT;
7   dbms_output.put_line('Total Records Updated. : ' || TotalUpd);
8    COMMIT;
9   EXCEPTION
10   WHEN NO_DATA_FOUND THEN
11  dbms_output.put_line ('No more data to update.');
12  WHEN OTHERS THEN
13  dbms_output.put_line ('Error while status as SUCCESS ');
14  END ;
15  /

The result for the above procedure is
Job Start time…………… : 04:41:41
Total Records Updated. : 0

But my expected result is “No more row to be updated” must be printed,since i have truncated the table Asset.Please tell where I went wrong in this.

Answer 1

it is as simple as the update does not geneate an error if there is no data.

you need to look at the value of TotalUpd if you want to control the flow of your code

 DECLARE 
 TotalUpd   NUMBER(36) := 0;
 BEGIN
    dbms_output.put_line ('Job Start time............... : ' 
        || TO_CHAR(SYSDATE, '             hh24:mi:ss'));
    UPDATE Asset SET _status = 'PROGRESS' WHERE status IS null;
    TotalUpd := SQL%ROWCOUNT; 
    IF TotalUpd = 0 THEN
        dbms_output.put_line ('No more data to update.');
    ELSE
        dbms_output.put_line('Total Records Updated. : '
            || TotalUpd);
    END IF; 
    COMMIT; 
 EXCEPTION 
 WHEN OTHERS THEN
    dbms_output.put_line ('Error while status as SUCCESS '); 
 END;