Question

我在INSERT INTO语句中遇到语法错误，可能是什么原因？

 Dim conn As New System.Data.OleDb.OleDbConnection()
 conn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\Bro_Proj.accdb"
 Dim sql As String = "INSERT INTO Order(`Stud_ID`, `BookName`, `Quantity`, `sale`, `DateOfOrder`, `TimeOfOrder`)  VALUES (' " & TextBox1.Text & " ' , ' " & ComboBox3.Text & " ', " & NumericUpDown1.Value & ", ' " & TextBox10.Text & " ', # " & TextBox8.Text & " #, # " & TextBox9.Text & " #);"
 conn.Open()
 Dim sqlc As New System.Data.OleDb.OleDbCommand(sql, conn)
 sqlc.ExecuteNonQuery()
 conn.Close()

Answer 1

我认为这是因为当您附上日期值时，空格字符存在试着省略它：

Dim sql As String = "INSERT INTO Order(`Stud_ID`, `BookName`, `Quantity`, `sale`, `DateOfOrder`, `TimeOfOrder`)
VALUES (' " & TextBox1.Text & " ' ,
    ' " & ComboBox3.Text & " ',
    " & NumericUpDown1.Value & ",
    ' " & TextBox10.Text & " ',
    #" & TextBox8.Text & "#,
    #" & TextBox9.Text & "#);"

Answer 2

我怀疑这个问题要么与＃符号和日期之间的空格有关，要么“NumericUpDown1.Value”不是一个字符串而不被告知这样做。

使用这种插入物很容易出错。我通常使用类似下面的东西。（对不起，如果它不完美。我对c＃更熟悉，这是我尝试翻译的。）

Dim sqlc As New System.Data.OleDb.OleDbCommand()

sqlc.CommandText = "INSERT INTO Order(Stud_ID, BookName, Quantity, sale, DateOfOrder, TimeOfOrder)  VALUES (@Stud_ID, @BookName, @Quantity, @sale, @DateOfOrder, @TimeOfOrder)

sqlc.Parameters.AddWithValue("@Stud_ID", TextBox1.Text)
sqlc.Parameters.AddWithValue("@BookName", ComboBox3.Text)
sqlc.Parameters.AddWithValue("@Quantity", NumericUpDown1.Value)
sqlc.Parameters.AddWithValue("@sale", TextBox10.Text)
sqlc.Parameters.AddWithValue("@DateOfOrder", "#" & TextBox8.Text & "#")
sqlc.Parameters.AddWithValue("@TimeOfOrder", "#" & TextBox9.Text & "#")

try {
    Dim conn As New System.Data.OleDb.OleDbConnection()
    conn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\Bro_Proj.accdb"
    sqlc.Connection = conn;
    conn.Open();
    sqlc.ExecuteNonQuery();
    conn.close();
}
catch (Exception ex) {
    textBox1.Text = ex.ToString();
}

＆＃34; INSERT INTO语句中的语法错误＆＃34;

2 个答案: