vc中sql语句的select问题CString SQLSQLSELECT * FROM SumDb WHERE Figure23 Sumset.Open(AFX_DAO
vc中sql语句的select问题
CString SQL;
SQL="SELECT * FROM SumDb WHERE Figure2='3' ";
Sumset.Open(AFX_DAO_USE_DEFAULT_TYPE,SQL)
如何判断select结果是否为空?
select 获取到的记录数为0即结果为空
if (0 == Sumset.GetRecordCount()) ..............
