Private Sub Button1_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles Button1.Click

        Dim myconnection As sqlConnection
        Dim mycommand As sqlCommand
        Dim ra As Integer


        myconnection = New sqlConnection("server=IAI-004;uid=;pwd=;database=payroll")
        myconnection.Open()
        mycommand = New sqlCommand("INSERT INTO employee_info([employee_id],[first_name],[last_name],[middle_name],[email],[telephone],[gender],[status],[date_birth],[hire_date]) values ('" & Employee_idTextBox.Text & "','" & First_nameTextBox.Text & "','" & Last_nameTextBox.Text & "','" & Middle_nameTextBox.Text & "','" & EmailTextBox.Text & "','" & TelephoneTextBox.Text & "','" & GenderTextBox.Text & "','" & StatusTextBox.Text & "','" & Date_birthDateTimePicker.Text & "','" & Hire_dateDateTimePicker.Text & "')",myconnection)
        mycommand.ExecuteNonQuery()
        MessageBox.Show("New Row Inserted" & ra)
        myconnection.Close()
    End Sub

对象“employee_info”,数据库“工资单”模式dbo上的INSERT权限被拒绝

我如何解决这个问题？