SQL FOR XML alternative notation (with tag and union all, simple and easy to understand)

Source: Internet
Author: User

SQL FOR XML alternative notation (with tag and union all, simple and easy to understand)


Test environment: SQL, R2, 2010, 2012, 2014, etc.

Declare @agent table (agentid int, Fname varchar (5), SSN varchar (one)) insert into @agent Select 1, ' Vimal ', ' 123-23-4521 ' UNION ALL Select 2, ' Jacob ', ' 321-52-4562 ' union ALL select 3, ' Tom ', ' 252-52-4563 ' Declare @address table (Addressid I NT, addresstype varchar, Address1 varchar, Address2 varchar, city varchar (+), Agentid int) insert INTO @addr ESS Select 1, ' Home ', ' abc ', ' XYZ road ', ' RJ ', 1 union ALL Select 2, ' Office ', ' temp ', ' PPP road ', ' RJ ', 1 UNION ALL Selec T 3, ' Home ', ' xxx ', ' AAA road ', ' NY ', 2 union ALL Select 4, ' Office ', ' CCC ', ' Oli Com ', ' CL ', 2 union ALL Select 5, ' Temp ' , ' Eee ', ' Olkiu road ', ' CL ', 2 union ALL Select 6, ' Home ', ' ttt ', ' Loik road ', ' NY ', 3--select--1 as Tag,--NULL as Parent ,--0 as ' agents!1! Sort!hide ',--null as ' agents!1! ',--null as ' agent!2! Agentid ',--NULL as ' agent!2! fname! Element ',--NULL as ' agent!2! Ssn! Element ',--NULL as ' addresscollection!3! Element ',--NULL as ' address!4!! XML ',--NULL as ' address!4! addresstype! Element ',--NULL as ' Address!4! address1! Element ',--NULL as ' address!4! address2! Element ',--NULL as ' address!4! city! Element '--union all--select--2 as Tag,--1 as Parent,--Agentid *,--null, Agentid, Fname, SSN,--null, NULL, NULL, NULL, NULL, Null--from @Agent--union all--select--3 as Tag,--2 as Parent,--Agentid * + 1,--null,null,null,--null,--NULL,--N ULL, NULL, NULL, NULL, Null--from @Agent--union all--select--4 as Tag,--3 as Parent,--Agentid * + 2,--null, NULL, NULL  , NULL, NULL,--' <!--' + addresstype + ' Address--', AddressType,--address1, Address2, City--from @Address--order by [agents!1! Sort!hide]--for XML EXPLICIT SELECT 1 as Tag, null as Parent, NULL as [agents!1!], null as [Agent !2! Agentid], NULL as [agent!2! fname! Element], NULL as [agent!2! Ssn! Element], NULL as [addresscollection!3! Element], NULL as [address!4! addresstype! Element], NULL as [address!4! address1! Element], NULL as [address!4! address2! Element], NULL as [Address!4! city!  Element] UNION all SELECT 2 as Tag, 1 as Parent, NULL, Agentid, Fname, SSN, null,null, NULL, NULL, Null from @Agent UNION all SELECT 3 as Tag, 2 as Parent, null,agentid,null, NULL, NULL, NULL, NU       LL, NULL, NULL from @Agent UNION all SELECT 4 as Tag, 3 as Parent, Null,agentid,null,null,null, AddressType, Address1, Address2, city from @Address ORDER by--all properties of the every agent--(from tag 2 and 4:SSN, fname and adresses)--'ll be sorted by Agentid and combined into--separate groups.       It's necessary in same cases. [agent!2! Agentid], [addresscollection!3! Element],--optional because NULL everywhere [address!4! addresstype!  element]--any ordering by elements of the tag 4 for XML EXPLICIT

Operation Result:


Article Source: http://social.msdn.microsoft.com/Forums/sqlserver/zh-CN/97f79941-324e-479e-ba5b-851cc534ebe5/ Problem-in-for-xml-explicit-query?forum=sqlxml

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.