將電子郵件列表中的10封電子郵件與10個郵件列表從10個郵箱分配到10個郵箱

Question

我的電子郵件列表在我的查詢中，包含30多封電子郵件。

Print @Emails 

結果：EMAIL1並[a] test.com; EMAIL2並[a] test.com; ...; email35並[a] test.com;

我需要從10發送到10.我必須從這個列表中發送10個。

這怎麼能用SQL Server來完成？

Answer 1

嘗試這個SQL，它使用公用表表達式（CTE）來循環輸入值，還有其他方法可用，但如果您希望分解字符串輸入並將其轉換爲表格，則應該滿足您的需求：

DECLARE @DemoTable table (Layout varchar(2000)) 
INSERT @DemoTable VALUES ('email1[a]test.com;email2[a]test.com;email3[a]test.com;email4[a]test.com;email5[a]test.com;email6[a]test.com;email7[a]test.com;email8[a]test.com;email9[a]test.com;email10[a]test.com;email11[a]test.com;email12[a]test.com;email13[a]test.com;email14[a]test.com;email15[a]test.com;email16[a]test.com;email17[a]test.com;email18[a]test.com;email19[a]test.com;email20[a]test.com;email21[a]test.com;email22[a]test.com;email23[a]test.com;email24[a]test.com;email25[a]test.com;email26[a]test.com;email27[a]test.com;email28[a]test.com;email29[a]test.com;email30[a]test.com;email31[a]test.com;email32[a]test.com;email33[a]test.com;email34[a]test.com;email35[a]test.com;') 

DECLARE @StringToTable table (email varchar(200)) 
DECLARE @Concatenated VARCHAR(2000) 
SET @Concatenated='' 
;WITH StringToTable AS 
( SELECT LEFT(Layout,CHARINDEX(';',Layout)) AS Email 
     , RIGHT(Layout,LEN(Layout)-CHARINDEX(';',Layout)) StringToProcess 
    FROM @DemoTable 
    WHERE Layout IS NOT NULL AND CHARINDEX(';',Layout)>0 
    UNION ALL 
    SELECT LEFT(StringToProcess,CHARINDEX(';',StringToProcess)) 
     , RIGHT(StringToProcess,LEN(StringToProcess)-CHARINDEX(';',StringToProcess)) 
    FROM StringToTable 
    WHERE StringToProcess IS NOT NULL AND CHARINDEX(';',StringToProcess)>0 
) 
INSERT INTO @StringToTable(email) 
SELECT TOP 10 Email FROM StringToTable--TOP 10 is to get the 10 mentioned in the question - you can change the order by to affect which 10 you wish to use. 

SELECT Email FROM @StringToTable 

如果需要的行重新整合成一個字符串，你可以做這樣的：

SELECT @Concatenated = @Concatenated + Email FROM @StringToTable 

SELECT @Concatenated