Global ESQL/C variables in a Windows environment

In earlier versions of the product, provided several global variables to support different features. The following table describes these global variables.

Table 1. Global ESQL/C variables
Global variable	Description
SQLSTATE	An ANSI-compliant status code as a five-character string (plus null terminator) For more information about SQLSTATE, see Exception handling.
SQLCODE sqlca.sqlcode	A status code specific to HCL OneDB™ as an integer value For more information about SQLCODE, see Exception handling.
sqlca structure	Diagnostic information specific to HCL OneDB For more information about this structure, see Exception handling.
FetBufSize and BigFetBufSize	The size of the fetch buffer BigFetBufSize is same as FetBufSize except for a higher upper limit value of the cursor buffer For more information about FetBufSize and BigFetBufSize, see Using dynamic SQL.
InetLogin structure	Environment information for the client ESQL/C application For more information, see The InetLogin structure.

In environments, implements the global variables in Global ESQL/C variables as functions, which the sqlhdr.h file defines. These functions return values that have the same data types as their global-variable counterparts. Therefore, this change in implementation does not require modification of existing code. You can still use these functions in the same context as their global-variable counterparts.