我正在使用链接到SQL Server 2012数据库后端的Access 2010前端。
在Access前端中,我有一个常规搜索屏幕,包含一个文本框,结果显示在列表框中。我希望文本框能够搜索多个字段,这些字段也需要是外卡。
所以,我的存储过程是这样的:
ALTER PROCEDURE [dbo].[SalesGeneralSearch]
@Search nvarchar(50) = ''
AS
BEGIN
SET NOCOUNT ON;
SELECT
tblJobHead.JobNum,
tblCustomer.LastName,
tblCustomer.M3DealerCode,
tblCustomer.TradeRef,
tblCustomer.Postcode,
tblJobHead.[Item Number],
tblJobHead.Description,
tblStatus.[Desc] AS Status
FROM
tblCustomer
INNER JOIN
(tblJobHead
INNER JOIN
tblStatus ON tblJobHead.Status = tblStatus.StatusID) ON tblCustomer.RepNum = tblJobHead.[Rep Num]
WHERE
(((tblJobHead.JobNum) Like '%'+ @Search + '%'))
OR (((tblCustomer.LastName) Like '%' + @Search + '%'))
OR (((tblCustomer.M3DealerCode) Like '%' + @Search + '%'))
OR (((tblCustomer.TradeRef) Like '%' + @Search + '%'))
OR (((tblCustomer.Postcode) Like '%' + @Search + '%'))
ORDER BY
tblJobHead.JobNum DESC;
END
好的,现在回到Access。在搜索屏幕上,我有用户输入的文本框,点击搜索的按钮和结果的列表框。在按钮的click事件中,我有以下代码:
Dim rs As ADODB.Recordset
Dim cn As ADODB.Connection
Dim cmd As ADODB.Command
Dim prm As ADODB.Parameter
Dim adString As Variant
Set cn = New ADODB.Connection
cn.ConnectionString = "DRIVER=SQL Server;SERVER=XXX;Database=XXX;Trusted_Connection=YES;"
cn.Open
Set cmd = New ADODB.Command
With cmd
.ActiveConnection = cn
.CommandText = "dbo.SalesGeneralSearch"
.CommandType = adCmdStoredProc
Set prm = .CreateParameter("@Search", adString, adParamInput)
.Parameters.Append prm
cmd.Execute
prm.Value = Me.Search.Text
End With
Set rs = New ADODB.Recordset
With rs
.CursorLocation = adUseClient
.CursorType = adOpenStatic
.LockType = adLockReadOnly
.Open cmd
End With
Set Me!lstJobQuickSearch.Recordset = rs
Me.lstJobQuickSearch.Requery
Set prm = Nothing
Set cmd = Nothing
然而,当我点击搜索按钮时,我一直收到以下错误:
运行时错误3708参数对象定义不正确
并突出显示
.Parameters.Append prm
lstJobQuickSearch的行源也是传递查询,使用以下内容:
SELECT tblJobHead.JobNum, tblCustomer.LastName, tblCustomer.M3DealerCode, tblCustomer.TradeRef, tblCustomer.Postcode, tblJobHead.[Item Number], tblJobHead.Description, tblJobHead.FN, tblStatus.[Desc] AS Status
FROM tblCustomer INNER JOIN (tblJobHead INNER JOIN tblStatus ON tblJobHead.Status = tblStatus.StatusID) ON tblCustomer.RepNum = tblJobHead.[Rep Num]
ORDER BY tblJobHead.JobNum DESC;
我哪里出错了?任何帮助将不胜感激。
由于我只想返回值,使用传递查询和编码参数是否更有效?我不确定,我已经做了好几天了: - (
此致
迈克尔
答案 0 :(得分:3)
我会使用DAO传递。假设您保存了pass-though查询,那么此代码将起作用:
With CurrentDb.QueryDefs("qPass")
.SQL = "exec SalesGeneralSearch " & strSearch
Set Me.MyListBox.RowSource = .OpenRecordset
End If
实际上没有必要发布这些大量的代码,这些代码只会被不诚实的开发人员盗用公司的计费时间,而上面的简单2行就足够了。
答案 1 :(得分:2)
问题是存储过程将输入参数声明为nvarchar(50)
,但在VBA中,使用ADODB.Parameter
定义adString
并且没有长度。问题:
nvarchar
映射到ADO中的adVarWChar
所以解决方法是将参数声明更改为
Set prm = .CreateParameter("@Search", adVarWChar, adParamInput, 50)