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Hi!

In the IBM documentation, is there any specification about the maximum value
of a COUNT query?

Charles


<Michael_Schutte@xxxxxxxxxxxx> a écrit dans le
message de
news:OF22F6B37C.0881F11A-ON852571CD.005D5F1D-852571CD.005D5D33@xxxxxxxxxxxxxxx
I'd imagine big enough to fit a count of all records.


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rpg400-l-bounces@xxxxxxxxxxxx wrote on 08/17/2006
12:57:28 PM:

Hi!

What must be the length of my host variable that receives the result of
the
COUNT query?

Charles


"McGovern, Sean"
<Sean.McGovern@xxxxxxxxxxxxxxxxxxxxxxx> a écrit
dans le message de

news:D0BF1924AE5102408F091535623E32C00C60348B@xxxxxxxxxxxxxxxxxxxxxxx
I don't believe so, unfortunately. You would need to perform a COUNT.


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Charles St-Laurent
Sent: 17 August 2006 16:21
To: rpg400-l@xxxxxxxxxxxx
Subject: Re: Get the row count from the SQLCA

Hi!

So, is there any SQLCA field that can indicate the EXACT number of rows
returned by my SELECT query before I try to use it to fill my subfile?

Charles


"McGovern, Sean"
<Sean.McGovern@xxxxxxxxxxxxxxxxxxxxxxx> a écrit
dans le message de

news:D0BF1924AE5102408F091535623E32C00C603486@xxxxxxxxxxxxxxxxxxxxxxx
SQLER3 is an 'estimated number of rows' value.



-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Charles St-Laurent
Sent: 17 August 2006 15:23
To: rpg400-l@xxxxxxxxxxxx
Subject: Get the row count from the SQLCA

Hi!

I try to get the row count from the SQLCA in a SQLRPGLE program in
which I build my Select statement dynamically in a string. The program
works fine but I want to get the row count from the SQLCA before
trying to fill my subfile with my Select result.

I know that row count is usually in SQLER3 (I think so) but when I try
to get this value before my FETCH loop, the value is 1.

This is what I do:

Eval SQLSTR = 'SELECT MY_DATA FROM MY_TABLE'
C/EXEC SQL PREPARE S1 FROM :SQLSTR
C/END-EXEC
C/EXEC SQL DECLARE C1 CURSOR FOR S1
C/END-EXEC
C/EXEC SQL OPEN C1
C/END-EXEC
C/EXEC SQL FETCH C1 INTO :SQLREC
C/END-EXEC
C                   DUMP

When I look at the result of the DUMP operation, SQLER3 = 1 but in
fact
the
result should be 2... why?

Thanks for your help
Charles



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