String queryFormat="DELETE FROM OmegaUser WHERE UserName=?";
---------------------------------------------------------^?是什么意思啊
改成这样试试:
String queryFormat="DELETE FROM OmegaUser WHERE UserName='abc'";
---------------------------------------------------------^?是什么意思啊
改成这样试试:
String queryFormat="DELETE FROM OmegaUser WHERE UserName='abc'";
你这个语法不大懂,应该是后来setString赋值的问题...