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Client APIs and toolsYou can use the HCL OneDB™ implementation of client APIs to develop applications for HCL OneDB™ database servers.
ESQL/C GuideThe HCL OneDB™ ESQL/C Programmer's Manual explains how to use , the HCL OneDB™ implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities.
AppendixesThis section contains additional reference information.
The ESQL/C function libraryThese topics describe the syntax and behavior of all the library functions provided with HCL® OneDB® ESQL/C.
The ifx_var_getdata() functionThe ifx_var_getdata() function returns the data from an lvarchar or var binary host variable.

The ifx_var_getdata() function

The ifx_var_getdata() function returns the data from an lvarchar or var binary host variable.

Syntax

var binary

void *ifx_var_getdata(var_bin)
   var binary **var_bin;

lvarchar

void *ifx_var_getdata(lvar)
   lvarchar **lvar;

var_bin: The address of the var binary host variable whose data is retrieved.
lvar: The address of the lvarchar pointer host variable whose data is retrieved.

Usage

The ifx_var_getdata() function returns the data as a void * pointer. Your application must cast this pointer to the correct data type. When you use ifx_var_getdata() on an lvarchar pointer, you must cast the returned (void) pointer to a C-language character pointer (char *).

Return codes

Null pointer: The function was not successful.
Valid pointer to the data buffer: The function was successful.