從屬插入多行選擇

Question

我們有一個使用SQL Server的CRM系統，並且正在尋找使用電子郵件地址填充所有客戶，即使該電子郵件地址爲NULL。

有一個客戶表，一個電子郵件地址表和一個鏈接器表。

我可以執行SELECT查詢誰需要一個新的電子郵件一切爲客戶排：

SELECT @CompanyId = Comp_CompanyId 
FROM Company 
WHERE Company.Comp_CompanyId NOT IN (
    SELECT ELink_RecordID 
    FROM EmailLink 
) 

，我可以執行INSERT報表的電子郵件地址添加到客戶：

DECLARE @EmailId int 
DECLARE @ELinkId int 

EXEC @ELinkId = eware_get_identity_id 'Email' 
EXEC @EmailId = eware_get_identity_id 'Email' 

INSERT INTO Email (
    Emai_EmailId, 
    Emai_CreatedBy, 
    Emai_CreatedDate, 
    Emai_UpdatedBy, 
    Emai_UpdatedDate, 
    Emai_TimeStamp, 
    Emai_EmailAddress 
) 
VALUES (
    @EmailId, 
    1, 
    GETDATE(), 
    1, 
    GETDATE(), 
    GETDATE(), 
    NULL 
) 
INSERT INTO EmailLink(
    ELink_LinkID, 
    ELink_CreatedBy, 
    ELink_CreatedDate, 
    ELink_UpdatedBy, 
    ELink_UpdatedDate, 
    ELink_TimeStamp, 
    ELink_EntityID, 
    ELink_RecordID, 
    ELink_Type, 
    ELink_EmailId 
) 
VALUES(
    @ELinkId, 
    1, 
    GETDATE(), 
    1, 
    GETDATE(), 
    GETDATE(), 
    5,   -- Person is 13, Company is 5 
    COMPANY_ID_GOES_HERE, 
    'Business', 
    @EmailId 
) 

有沒有辦法將這些組合成一個大的SQL語句，而無需使用外部工具？我可以編寫一個快速的Python程序來執行此操作，但維護這個長期操作的人員都是SQL的關注焦點。

最遠的我所得到的是結合SELECT與INSERT的電子郵件，但無法弄清楚如何再INSERT鏈接行：

DECLARE @CompanyId int 
DECLARE @EmailId int 
DECLARE @ELinkId int 

EXEC @ELinkId = eware_get_identity_id 'Email' 
EXEC @EmailId = eware_get_identity_id 'Email' 

INSERT INTO Email (
    Emai_EmailId, 
    Emai_CreatedBy, 
    Emai_CreatedDate, 
    Emai_UpdatedBy, 
    Emai_UpdatedDate, 
    Emai_TimeStamp, 
    Emai_EmailAddress 
) 
VALUES (
    @EmailId, 
    1, 
    GETDATE(), 
    1, 
    GETDATE(), 
    GETDATE(), 
    NULL 
) 

SELECT @CompanyId = Comp_CompanyId 
FROM Company 
WHERE Company.Comp_CompanyId NOT IN (
    SELECT ELink_RecordID 
    FROM EmailLink 
) 

Answer 1

將這項工作的第二部分？

DECLARE @CompanyId int 
DECLARE @EmailId int 
DECLARE @ELinkId int 

EXEC @ELinkId = eware_get_identity_id 'Email' 
EXEC @EmailId = eware_get_identity_id 'Email' 

INSERT INTO Email (
    Emai_EmailId, 
    Emai_CreatedBy, 
    Emai_CreatedDate, 
    Emai_UpdatedBy, 
    Emai_UpdatedDate, 
    Emai_TimeStamp, 
    Emai_EmailAddress 
) 
VALUES (
    @EmailId, 
    1, 
    GETDATE(), 
    1, 
    GETDATE(), 
    GETDATE(), 
    NULL 
) 
;WITH cteX 
AS(
    SELECT CompanyId = Comp_CompanyId 
    FROM Company 
    WHERE Company.Comp_CompanyId 
    NOT IN (
      SELECT ELink_RecordID 
      FROM EmailLink 
      ) 
) 
INSERT INTO EmailLink(
    ELink_LinkID, 
    ELink_CreatedBy, 
    ELink_CreatedDate, 
    ELink_UpdatedBy, 
    ELink_UpdatedDate, 
    ELink_TimeStamp, 
    ELink_EntityID, 
    ELink_RecordID, 
    ELink_Type, 
    ELink_EmailId 
) 
SELECT 
    @ELinkId, 
    1, 
    GETDATE(), 
    1, 
    GETDATE(), 
    GETDATE(), 
    5,   -- Person is 13, Company is 5 
    X.CompanyId, --COMPANY_ID_GOES_HERE, 
    'Business', 
    @EmailId 
FROM 
    cteX X