Re: Counter in For loops

From: mgumbs <mgumbsNOmgSPAM_at_hotmail.com.invalid>
Date: 2000/04/10
Message-ID: <0587b2c6.37aa353b@usw-ex0106-047.remarq.com>#1/1

Use 2 conventional FOR loops
You'll need two 'counters'. One counter is within another and for each loop increment, you convert the number value + 65 to character (ie CHR(65) = 'A')

CREATE OR REPLACE PROCEDURE Alpha_Loop IS

  ones   varchar2(1);
  tens   varchar2(1);
  value  varchar2(2);

BEGIN   FOR a in 1..26 LOOP
    tens := chr(a + 64);
    FOR b in 1..26 LOOP

      ones := CHR(b + 64);
      value := tens||ones;
      DBMS_OUTPUT.put_line(value);

    END LOOP;
  END LOOP; END;

SQL> SET SERVEROUT ON
SQL> SET ARRAYSIZE 1
SQL> EXEC ALPHA_LOOP;

AA
AB
AC
AD
AE
AF
.
.
AW
AX
AY
AZ
BA
BB
BC
.
.

Its a start, my lunchtime doesn't extend to giving a full blown procedure ;(
You'll have to adapt the procedure if you want the loop to include 00 - 99.

HTH, Mark G

In article <8clfc2$dnb$1_at_nnrp1.deja.com>, Greg Tada <gtada_at_hotmail.com> wrote:
>Is it possible to use a character string instead of a number as
 the
>counter in a FOR loop? For example, I need a for loop that goes
>from '00' to 'ZZ'.
>
>Thanks in advance,
>Greg Tada
>
>
>Sent via Deja.com http://www.deja.com/
>Before you buy.
>
>

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Received on Mon Apr 10 2000 - 00:00:00 CDT