[英]SQL Syntax Error Near ')'
我正在實現一個使用SQL Server數據庫的C#桌面應用程序。
我有以下代碼:
SqlConnection cn = new SqlConnection(@"Data Source=PC;Initial Catalog=FRAT_DB;Integrated Security=True");
SqlCommand cmdSelect = new SqlCommand("select MAX(PhotoID) from Photo", cn);
cn.Open();
SqlDataReader MaxID_Selector = cmdSelect.ExecuteReader();
double maxID = 0;
while (MaxID_Selector.Read())
{
if (MaxID_Selector[0].ToString().Trim() != "")
{
maxID = Convert.ToInt64(MaxID_Selector[0].ToString());
}
}
maxID = maxID + 1;
cn.Close();
SqlCommand cmdb = new SqlCommand(@"IF EXISTS(SELECT * FROM Person WHERE PersonID = @personID) BEGIN UPDATE Person SET PersonID = @PersonID, Name= @Name, Age= @Age,P_Group=@P_Group, Email= @Email END ELSE BEGIN INSERT INTO Person(PersonID,Name,Age,P_Group,Email) values(@PersonID,@Name,@Age,@P_Group,@Email)", cn);
cmdb.Parameters.AddWithValue("@PersonID", personID);
cmdb.Parameters.AddWithValue("@Name", textBox1.Text);
cmdb.Parameters.AddWithValue("@Age", textBox2.Text);
cmdb.Parameters.AddWithValue("@P_Group", textBox6.Text);
cmdb.Parameters.AddWithValue("@Email", textBox5.Text);`
當我運行程序並嘗試保存信息時,出現以下錯誤消息: Syntax Error Near ')'
有什么辦法嗎?
看起來您在插入后缺少“ End”。 這未經測試,但請嘗試以下操作:
SqlCommand cmdb = new SqlCommand(@"IF EXISTS(SELECT * FROM Person WHERE PersonID = @personID)
BEGIN
UPDATE Person SET PersonID = @PersonID, Name= @Name, Age= @Age,P_Group=@P_Group, Email= @Email
END
ELSE
BEGIN
INSERT INTO Person(PersonID,Name,Age,P_Group,Email) values(@PersonID,@Name,@Age,@P_Group,@Email)
END ", cn
);
您在插入后錯過了“ End”,請在第二條插入語句中嘗試以下操作:
SqlCommand cmdb = new SqlCommand(@"IF EXISTS(SELECT * FROM Person WHERE PersonID = @personID) BEGIN UPDATE Person SET PersonID = @PersonID, Name= @Name, Age= @Age,P_Group=@P_Group, Email= @Email END ELSE BEGIN INSERT INTO Person(PersonID,Name,Age,P_Group,Email) values(@PersonID,@Name,@Age,@P_Group,@Email) END ", cn);
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