Because both expressions evaluate to
1 and cause the output to be sorted by the first column? Oracle seems
to ignore the values after the decimal point.
SQL> select a, c from x
2 where rownum < 10
3 order by 1.7;
2 where rownum < 10
3 order by 1.7;
A C
---------- -
4861 Y
4862 N
4863 Y
4864 N
4865 Y
4866 N
4867 Y
4868 N
4869 Y
---------- -
4861 Y
4862 N
4863 Y
4864 N
4865 Y
4866 N
4867 Y
4868 N
4869 Y
9 rows selected.
SQL> select a, c from x
2 where rownum < 10
3 order by 2.7;
2 where rownum < 10
3 order by 2.7;
A C
---------- -
4862 N
4864 N
4868 N
4866 N
4861 Y
4869 Y
4867 Y
4865 Y
4863 Y
---------- -
4862 N
4864 N
4868 N
4866 N
4861 Y
4869 Y
4867 Y
4865 Y
4863 Y
9 rows selected.
Gudmundur
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: "Multiple recipients of list ORACLE-L"
<[EMAIL PROTECTED]>
Sent: Saturday, December 27, 2003 4:14
PM
Subject: order by
> Can someone please explain to me why the following order by clauses are
> valid and yield the same results :
>
> select empno, deptno from emp
> order by sqrt (1) ;
>
> and
>
> select empno, deptno from emp
> order by sqrt ( 3.14234 ) ;
>
> The docs say that in the order by clause you could specify only (a) column
> names or (b) positional parameters or (c) expressions involving the columns
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: <[EMAIL PROTECTED]
> INET: [EMAIL PROTECTED]
>
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