| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Usenet -> c.d.o.misc -> Re: Problems using sqlaldt, dynamic SQL
On Tue, 23 Feb 1999 09:57:41 +0100, Thomas Rieffel <thomasr_at_fun.de>
wrote:
>Hi,
>
>I'm running Oracle8 on Linux (Intel) and I have to biuld dynamic Queries
>in C using Dynamic SQL. So I want to allocate memory for with the
>SQLDA-Structure with sqlalt.
>In the Oracle HTML-Docu sqlalt has 3 parameters:
>
>descriptor_name = sqlaldt(max_vars, max_name, max_ind_name);
>
>This didn't work. So i had a look at "sqlda.h" and found the following
>#define with 4
>parameters for sqlalt
>
>#define SQLSQLDAAlloc(arg1, arg2, arg3, arg4) sqlaldt(arg1, arg2, arg3,
>arg4)
>
>Does anybody know the meaning of the 4 Parameters. I think arg2 could be
>"max_vars".
Check out Chapter 14, Using Dynamic SQL: Advanced Concepts of the Pro C/C++ Precompilers Guide.
descriptor_name = SQLSQLDAAlloc (runtime_context, max_vars, max_name, max_ind_name);
where:
runtime_context - pointer to runtime context
max_vars - Is the maximum number of select-list items or placeholders that the descriptor can describe.
max_name - Is the maximum length of select-list or placeholder names.
max_ind_name - Is the maximum length of indicator variable names, which are optionally appended to placeholder names. This parameter applies to bind descriptors only, so set it to zero when allocating a select descriptor.
In ANSI C notation, this would be:
SQLDA *SQLSQLDAAlloc(dvoid *context, unsigned int max_vars, unsigned int max_name, unsigned int max_ind_name);
>
>Thanks a lot
>
>Thomas Rieffel
>
Thanks!
Joel
Joel R. Kallman Oracle Service Industries
Columbus, OH jkallman@us.oracle.com http://www.oracle.com
 |
 |