MSSQL sp_send_dbmail 無資料顯示問題

sql 資料庫

匿名 2012-03-08 14:42:19 ‧ 4214 瀏覽

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請問目前有參考下列程式設定時發送MAIL的排成
因目前無資料時HTML格式郵件內容將會顯示"空白"
如何可在無資料時在HTML格式郵件內容顯示"無符合資料"
或"不寄送郵件" 謝謝

DECLARE @tableHTML  NVARCHAR(MAX) ;

SET @tableHTML =
    N'&lt;H1>Work Order Report&lt;/H1>' +
    N'&lt;table border="1">' +
    N'&lt;tr>&lt;th>Work Order ID&lt;/th>&lt;th>Product ID&lt;/th>' +
    N'&lt;th>Name&lt;/th>&lt;th>Order Qty&lt;/th>&lt;th>Due Date&lt;/th>' +
    N'&lt;th>Expected Revenue&lt;/th>&lt;/tr>' +
    CAST ( ( SELECT td = wo.WorkOrderID,       '',
                    td = p.ProductID, '',
                    td = p.Name, '',
                    td = wo.OrderQty, '',
                    td = wo.DueDate, '',
                    td = (p.ListPrice - p.StandardCost) * wo.OrderQty
              FROM AdventureWorks2008R2.Production.WorkOrder as wo
              JOIN AdventureWorks2008R2.Production.Product AS p
              ON wo.ProductID = p.ProductID
              WHERE DueDate > '2006-04-30'
                AND DATEDIFF(dd, '2006-04-30', DueDate) &lt; 2 
              ORDER BY DueDate ASC,
                       (p.ListPrice - p.StandardCost) * wo.OrderQty DESC
              FOR XML PATH('tr'), TYPE 
    ) AS NVARCHAR(MAX) ) +
    N'&lt;/table>' ;

EXEC msdb.dbo.sp_send_dbmail @recipients='danw@Adventure-Works.com',
    @subject = 'Work Order List',
    @body = @tableHTML,
    @body_format = 'HTML' ;