define external counter function SQLSetEnvAttr
     (  read-only SQL_handle_type EnvironmentHandle,
        value counter Attribute,
        read-only SQL_vector_type Value,
        value counter StringLength,
        value counter ValueType )

Sets the attributes that govern aspects of environments.

Input arguments:

1. EnvironmentHandle.
2. Attribute. Attribute identifier. The following values are allowed:
   • SQL_ATTR_OUTPUT_NTS
   • SQL_ATTR_ODBC_VERSION
   • SQL_ATTR_CONNECTION_POOLING
   • SQL_ATTR_CP_MATCH
3. Value. The value for the specified Attribute.
4. StringLength. The length of Value.
5. ValueType. The type of data specified in Value. The following values are allowed: SQL_CHAR and SQL_INTEGER.