我有一个这样的sql命令
SqlCommand cmd = new SqlCommand(
"IF NOT EXISTS(SELECT english from dic where english='"+e_word+"') " +
"Insert INTO dic VALUES('"+e_word+"',N'"+b_word+"') " +
"else " +
"UPDATE dic SET english='"+e_word+"',bangla=N'"+b_word+"' WHERE english='"+e_word+"'",con);
cmd.ExecuteNonQuery();
但我得到了像这样的错误
Incorrect syntax near 's'.
Incorrect syntax near 's'.
我该如何解决这个问题??????