Client-Library uses the following structures to return message information:
CS_CLIENTMSG – described in the section, “Client-Library and SQL Structures”.
CS_SERVERMSG – described in the section, “Client-Library and SQL Structures”.
SQLCA – described in the section, “Client-Library and SQL Structures”.
SQLCODE – described in the section, “Client-Library and SQL Structures”.
SQLSTATE – described in the section, “Client-Library and SQL Structures” .