The DB2 ODBC Environment
DB2 for OS/390 and z/OS does not support an ODBC driver manager. All API calls are routed through the single ODBC driver that is loaded at runtime into the application address space. DB2 ODBC support is implemented as an IBM C/C++ dynamic load library (DLL). By providing DB2 ODBC support using a DLL, DB2 ODBC applications do not need to link-edit any DB2 ODBC driver code with the application load module. Instead, the linkage to the DB2 ODBC APIs is resolved dynamically at runtime by the IBM Language Environment (LE) runtime support. The DB2 ODBC driver can use either the call attachment facility (CAF) or the Recoverable Resource Manager Services attachment facility (RRSAF) to connect to the DB2 for OS/390 and z/OS address ...
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