是否有任何查询在数据库中搜索被另一个值替换的值 [英] Is there any query to search in database for the value which was replaced by another value
问题描述
我在sql数据库中创建了两个表,并用连接加入它们。其中一个是Products表,其中一列是P_active,带有char(1),默认值为' Y
'。在gridview中显示时,状态列显示' Y
',但我想显示' Active
'而不是' Y
'。我已经这样做了,但问题是在搜索时,如果我输入' Active
'或任何字母 a / c / t / i / v / e
并点击搜索,记录为' Active
'状态必须显示但不幸的是,如果我输入除 Y
之外的任何字母,我没有找到记录。那么如何实现所需的功能查询。
我尝试过:
CS代码:
I have created two tables in sql database and joined them with joins.In that one is Products table, in that one column is P_active with char(1), and default value as 'Y
'.While displaying in gridview, status column is showing 'Y
', but i want to show 'Active
' instead of 'Y
'.I have done this, but the problem is while searching,in textbox if i enter 'Active
' or any letter a/c/t/i/v/e
and click on search, the records with 'Active
' status must be shown but unfortunately, i am getting no records found if i enter any letter except 'Y
'.So how to achieve the required functionality with query.
What I have tried:
CS CODE:
protected void GridView1_RowDataBound(object sender,GridViewRowEventArgs e)
{
DataRowView drv = (DataRowView)e.Row.DataItem;
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (drv["P_active"].ToString() == "Y")
e.Row.Cells[4].Text = "Active";
}
}
protected void btnsearch_Click(object sender, EventArgs e)
{
if (ddlsearch.SelectedItem.Text == "Product Name")
{
GridView1.DataSource = bll.Search("P_name", txtsearch.Text);
}
else if (ddlsearch.SelectedItem.Text == "Status")
{
GridView1.DataSource = bll.Search("P_active", txtsearch.Text);
}
GridView1.DataBind();
}
BAL:
BAL:
public DataTable Search(string option, string val)
{
return dll.search(option, val);
}
DAL:
DAL:
public DataTable search(string searchBy, string searchVal)
{
SqlCommand cmd = new SqlCommand("spsearchp", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@SearchBy", searchBy);
cmd.Parameters.AddWithValue("@SearchVal", searchVal);
SqlDataAdapter sda = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
sda.Fill(dt);
return dt;
}
存储过程:
Stored Procedure:
CREATE PROC [dbo].[spsearchp]
@SearchBy varchar(50),
@SearchVal varchar(50)
AS
BEGIN
IF @SearchBy = 'P_name'
BEGIN
select * from Products LEFT JOIN Category ON Products.PCid= Category.cid where P_name like '%' + @SearchVal + '%'
END
ELSE IF @SearchBy = 'P_active'
BEGIN
select * from Products LEFT JOIN Category ON Products.PCid= Category.cid WHERE P_active like '%' + @SearchVal + '%'
END
ELSE
BEGIN
select * from Products LEFT JOIN Category ON Products.PCid= Category.cid
END
END
推荐答案
A简单的方法是改变处理 Active 搜索的部分的程序;也许这样的事情对你有用
A simple way would be to ALTER that procedure for the portion dealing with the Active search; perhaps something like this would work for you
-- prior code
ELSE IF @SearchBy = 'P_active'
BEGIN
-- select * from Products LEFT JOIN Category ON Products.PCid= Category.cid WHERE P_active like '%' + @SearchVal + '%'
DECLARE @Active CHAR(1) = 'N'
IF (@SearchVal = 'active') SET @Active = 'Y'
SELECT *
FROM Products p
LEFT JOIN Category c ON p.PCid= c.cid
WHERE p.P_active= @Active
END
-- continue with previous code
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