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From "Turner, John" <>
Subject RE: OFF-TOPIC: Pointers to CallableStatement docs?
Date Mon, 19 Aug 2002 16:53:29 GMT

Right.  My setup looks like this:

cstmt = sConn.prepareCall("{? = call

Basically, there are 5 inputs (username, password, IP address, browser type,
and referer) and I'm supposed to get a return status back (bad or good) and
5 outputs: 3 booleans and 2 strings (isValid, isExceeded, isEnabled, name,
and title).

I've tried everything I can think of...only having 6 question marks, having
all 11, only using 5, etc. to no avail.  I enabled debug logging on the
driver, and I get messages that say "parameter my_parameter not registers as
output" or "not registered as input", even when they are, and regardless of
how I use the set*() and registerOutParameter() methods.  Very confusing.

I'd love to find a complete stored procedures How-To somewhere that
addresses complex stored procedures instead of the basic tutorials that do
simple math or just insert a row.

Thanks for the reply.


-----Original Message-----
From: Wagoner, Mark []
Sent: Monday, August 19, 2002 12:31 PM
To: 'Tomcat Users List'
Subject: RE: OFF-TOPIC: Pointers to CallableStatement docs?

When you say it returns a status, do you mean it is a function (I work
primarily with Oracle, so if this does not apply to MS I apologize)?

If so, you need to make the call something like:

CallableStatement stmt = conn.prepareCall("{call ? = proc(?,?, ... )}");

-----Original Message-----
From: Turner, John []
Sent: Monday, August 19, 2002 12:18 PM
To: ''
Subject: OFF-TOPIC: Pointers to CallableStatement docs?

Hello -

I think there is a java-user list, or even a jdbc-interest list, but I'd
rather not subscribe when all I need is one quick pointer, so I am hoping
someone on this list can get me started.

I'm having quite a bit of difficulty working with stored procedures in my
classes and servlets.  The database is MS SQL Server 2000.  I've read every
single doc I can find, both at Sun, through Google, and even through the
driver vendor's documentation.  I even scammed some code from a JDBC 3.0
book (the only one I could find) at Border's, with still no luck.

Can anyone point me to a resource that explains how to setup stored
procedures in a CallableStatement correctly?  I understand about registering
the output parameters and setting the input types, and I understand that the
parameters in a CallableStatement are numbered from left to right starting
at 1.  I've seen the examples at Sun, etc. but they're not much help.

The problem is that all of the examples I can find deal with very simple,
very rudimentary stored procedures, like finding the average of two numbers,
or whatever.  Our stored procedures are more involved than that.

Example:  a stored procedure used to validate logins.  It has 5 input
parameters, and 5 output parameters.  It returns a status.  According to the
docs I have read so far, that means I should have a CallableStatement with
11 question marks ("?") in it (5 + 5 + 1 = 11).  but that doesn't work, and
I have tried every combination of inputs, outputs, input/outputs, etc. that
I can think of, to no avail.

Any help or pointers to resources that explain stored procedures and
CallableStatements in more in-depth fashion would be greatly appreciated.

- John

John Turner | 248-488-3466
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