1
我更新了使用c#文本框的sql數據庫,但所有記錄都使用相同的值更新了我在該文本框中輸入的內容。我做錯了。更新數據庫時,所有記錄更新爲相同的值記錄
我下面的代碼
private void btnsave_Click(object sender, EventArgs e)
{
try
{
string connectionString = (@"Data Source = M2\SQL2016; Initial Catalog = inventoryDB; Integrated Security = True");
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
using (SqlCommand cmd =
new SqlCommand("UPDATE companyDB SET [email protected]", conn))
{
cmd.Parameters.AddWithValue("@label3", cmpname.Text);
int rows = cmd.ExecuteNonQuery();
}
}
}
catch (Exception ex)
{
MessageBox.Show("Not Updated");
}
只需在查詢中添加where子句 –