SQL syntax

This SQL syntax is for a client function.

{? = call client_function(?, ?,...)} 

Use the first parameter marker (“?�?) only when the first parameter is an output parameter.

The following code example invokes a client function when the first parameter is an output parameter:
{? = call ifx_lo_open(?, ?, ?)}
The following code example invokes a client function when the first parameter is not an output parameter:
{call ifx_lo_create(?, ?, ?, ?)}