c# - 如何使用忽略大小写敏感的参数编写存储过程

Question

你能告诉我这个有什么问题吗？

ALTER proc [dbo].[UrunuGetir](@basharf nvarchar(5))
as
     select adi, urunid, kategori 
     from urun 
     where (UPPER(adi) like UPPER('%' +'@basharf'+ '%')) 
           or (LOWER(adi) like LOWER ('%' +'@basharf'+ '%')) 
     order by kategori

没有错误但也没有数据。

这里是编辑:

protected void Button1_Click(object sender, EventArgs e) 
{ 
   if (TextBox1.Text != null) 
   { 
      UrunGetir(TextBox1.Text); 
   } 
   else 
   { 
     return; 
   } 
} 

private void UrunGetir(string p)
{
    SqlConnection baglanti = new SqlConnection("....");

    SqlDataAdapter dap = new SqlDataAdapter("select adi, urunid, kategori, birimf from urun where (UPPER(adi) like '%' + UPPER(@basharf) + '%' ) or (LOWER(adi) like '%' + LOWER(@basharf) + '%' ) order by kategori", baglanti);

    dap.SelectCommand.Parameters.Add("@basharf", p);

    if (baglanti.State == System.Data.ConnectionState.Closed)
        baglanti.Open();

    DataTable dt = new DataTable();
    dap.Fill(dt);

    GridView1.DataSource = dt;
    GridView1.DataBind();

    if (baglanti.State == System.Data.ConnectionState.Open)
        baglanti.Close();

    HiddenField1.Value = p.Substring(0,p.Length);
}

Answer 1

这个位:

UPPER('%' +'@basharf'+ '%')

您要连接三个字符串，因此该表达式等于:

UPPER('%@basharf%')

你的意思可能是:

'%' + UPPER(@basharf) + '%'

它将传入的参数与 % 符号连接起来。