当我执行ODBC应用程序时，我能够做到这一点而没有任何问题。 但是，一旦检查了跟踪日志，我发现指针分配中的值很奇怪。
这是跟踪日志的一部分。
WCCOActrl.exe - 329c-2160 ENTER SQLGetStmtAttrW
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 11 <SQL_ATTR_RETRIEVE_DATA>
SQLPOINTER 0x000000000A55EF90
SQLINTEGER -6
SQLINTEGER * 0x0000000000000000
WCCOActrl.exe - 329c-2160 EXIT SQLGetStmtAttrW with return code 0 (SQL_SUCCESS)
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 11 <SQL_ATTR_RETRIEVE_DATA>
SQLPOINTER 0x000000000A55EF90 (1) <SQL_RD_ON>
SQLINTEGER -6
SQLINTEGER * 0x0000000000000000
WCCOActrl.exe - 329c-2160 ENTER SQLSetStmtAttrW
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 11 <SQL_ATTR_RETRIEVE_DATA>
SQLPOINTER 1 <SQL_RD_ON>
SQLINTEGER -6
WCCOActrl.exe - 329c-2160 EXIT SQLSetStmtAttrW with return code 0 (SQL_SUCCESS)
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 11 <SQL_ATTR_RETRIEVE_DATA>
SQLPOINTER 1 <SQL_RD_ON>
SQLINTEGER -6
WCCOActrl.exe - 329c-2160 ENTER SQLSetStmtAttrW
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 23 <SQL_ATTR_ROW_BIND_OFFSET_PTR>
SQLPOINTER 0x00000000076FE5D0
SQLINTEGER -4
WCCOActrl.exe - 329c-2160 EXIT SQLSetStmtAttrW with return code 0 (SQL_SUCCESS)
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 23 <SQL_ATTR_ROW_BIND_OFFSET_PTR>
SQLPOINTER 0x00000000076FE5D0
SQLINTEGER -4
WCCOActrl.exe - 329c-2160 ENTER SQLBindCol
HSTMT 0x0000000000C57FD0
UWORD 1
SWORD 1 <SQL_C_CHAR>
PTR 0x0000000000000098
SQLLEN 256
SQLLEN * 0x0000000000000090
WCCOActrl.exe - 329c-2160 EXIT SQLBindCol with return code 0 (SQL_SUCCESS)
HSTMT 0x0000000000C57FD0
UWORD 1
SWORD 1 <SQL_C_CHAR>
PTR 0x0000000000000098
SQLLEN 256
SQLLEN * 0x0000000000000090 (BADMEM)
WCCOActrl.exe - 329c-2160 ENTER SQLBindCol
HSTMT 0x0000000000C57FD0
UWORD 2
SWORD 1 <SQL_C_CHAR>
PTR 0x00000000000001A8
SQLLEN 201
SQLLEN * 0x00000000000001A0
WCCOActrl.exe - 329c-2160 EXIT SQLBindCol with return code 0 (SQL_SUCCESS)
HSTMT 0x0000000000C57FD0
UWORD 2
SWORD 1 <SQL_C_CHAR>
PTR 0x00000000000001A8
SQLLEN 201
SQLLEN * 0x00000000000001A0 (BADMEM)
WCCOActrl.exe - 329c-2160 ENTER SQLBindCol
HSTMT 0x0000000000C57FD0
UWORD 3
SWORD -25 <SQL_C_SBIGINT>
PTR 0x0000000000000288
SQLLEN 20
SQLLEN * 0x0000000000000280
WCCOActrl.exe - 329c-2160 EXIT SQLBindCol with return code 0 (SQL_SUCCESS)
HSTMT 0x0000000000C57FD0
UWORD 3
SWORD -25 <SQL_C_SBIGINT>
PTR 0x0000000000000288
SQLLEN 20
SQLLEN * 0x0000000000000280 (BADMEM)
WCCOActrl.exe - 329c-2160 ENTER SQLBindCol
HSTMT 0x0000000000C57FD0
UWORD 4
SWORD 1 <SQL_C_CHAR>
PTR 0x00000000000002B0
SQLLEN 11
SQLLEN * 0x00000000000002A8
WCCOActrl.exe - 329c-2160 EXIT SQLBindCol with return code 0 (SQL_SUCCESS)
HSTMT 0x0000000000C57FD0
UWORD 4
SWORD 1 <SQL_C_CHAR>
PTR 0x00000000000002B0
SQLLEN 11
SQLLEN * 0x00000000000002A8 (BADMEM)
WCCOActrl.exe - 329c-2160 ENTER SQLSetStmtAttrW
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 9 <SQL_ROWSET_SIZE>
SQLPOINTER 1
SQLINTEGER -6
WCCOActrl.exe - 329c-2160 EXIT SQLSetStmtAttrW with return code 0 (SQL_SUCCESS)
SQLHSTMT 0x0000000000C57FD0
SQLINTEGER 9 <SQL_ROWSET_SIZE>
SQLPOINTER 1
SQLINTEGER -6
WCCOActrl.exe - 329c-2160 ENTER SQLExtendedFetch
HSTMT 0x0000000000C57FD0
UWORD 1 <SQL_FETCH_NEXT>
SQLLEN 0
SQLULEN * 0x000000000A55F040
UWORD * 0x00000000076FC0B0
如您在SQLBindCol（）中看到的PTR，PTR的值是错误的。 （它必须具有有效的指针...）
有人可以帮我解释一下吗？
它在“ mysql odbc驱动程序”上工作得很好，但是在我自己的驱动程序上却没有。
这怎么可能？