SQLConnect() 连接服务器失败

Question

I am trying to use SQLConnect() to connect sqlserver with C++:

 retcode = SQLConnect(hdbc, (UCHAR*)"My server name", 
           strlen((const char*)"My server name"),(UCHAR*)"My ID", 
           strlen((const char*)"My ID"),(UCHAR*)"My PW", 
           strlen((const char*)"My PW"));

but it always return -1 to "retcode" . Is there anything wrong with the format of my server name? And how could I set the initial catalog of it?

Answer 1

Syntax of SQLConnect is as below

SQLRETURN SQLConnect(
     SQLHDBC        ConnectionHandle,
     SQLCHAR *      ServerName,
     SQLSMALLINT    NameLength1,
     SQLCHAR *      UserName,
     SQLSMALLINT    NameLength2,
     SQLCHAR *      Authentication,
     SQLSMALLINT    NameLength3);

eg:

 retcode=   SQLConnect(hdbc, (SQLCHAR*) "servername", SQL_NTS, (SQLCHAR*) NULL, 0, NULL, 0);

change the example according to your requirement and check

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