How to find total lines read by the query
HII allI'm trying to find out the number of records their by read by my request.
I also tried count (*) but it gives me correct result
I want to use the number of lines in my procedure then, how do I use it.
Can I use number of lines in the loop.
so that I can do the math on each result of a line
Thanking you in advance
Concerning
GauravS
If you want to know the total number of rows returned by a query, and you want to know it at the time that the first line is read so that you can use it in a kind of calculation, you would be better using the analytical function of the account...
SQL> select empno, sal, count(*) over () as cnt
2 from emp;
EMPNO SAL CNT
---------- ---------- ----------
7369 800 14
7499 1600 14
7521 1250 14
7566 2975 14
7654 1250 14
7698 2850 14
7782 2450 14
7788 3000 14
7839 5000 14
7844 1500 14
7876 1100 14
7900 950 14
7902 3000 14
7934 1300 14
14 rows selected.
SQL>
If you try to use rowcount % while in a cursor loop, then you will find that it will only return how many rows have been retrieved at that time here...
SQL> ed
Wrote file afiedt.buf
1 declare
2 cursor cur_e is
3 select empno, sal, count(*) over () as cnt
4 from emp;
5 begin
6 for e in cur_e
7 loop
8 dbms_output.put_line(to_char(e.empno)||','||to_char(e.sal)||','||to_char(e.cnt)||','||to_char(cur_e%rowcount));
9 end loop;
10* end;
SQL> /
7369,800,14,1
7499,1600,14,2
7521,1250,14,3
7566,2975,14,4
7654,1250,14,5
7698,2850,14,6
7782,2450,14,7
7788,3000,14,8
7839,5000,14,9
7844,1500,14,10
7876,1100,14,11
7900,950,14,12
7902,3000,14,13
7934,1300,14,14
PL/SQL procedure successfully completed.
SQL>
Tags: Database
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