bstr_t strConnect=(" driver={SQL Server}; Server=(local) \ \ sqlexpress; The DATABASE=movie order system; UID=sa; The PWD=123 "); 
//_bstr_t strConnect="Provider=SQLOLEDB; The Database=CAP; uid=sa; The PWD=123; "; 
cout <"1" & lt; _CommandPtr m_pCommand; 
Mand m_pCommand. CreateInstance (" ADODB.Com "); 
M_pCommand - & gt; ActiveConnection=m_pConnection;//the key sentence, will establish the connection assigned to it 

Can I ask what XiaWen cout sentence leads to debug the error

CodePudding user response:

Mand m_pCommand. CreateInstance (" ADODB.Com ");
If you create failure, behind will be error

CodePudding user response:

CreateInstance () function call failed?