SQL XML DELETE
--A. ´Ó´æ´¢ÔÚ·ÇÀàÐÍ»¯µÄ xml ±äÁ¿ÖеÄÎĵµÖÐɾ³ý½Úµã
DECLARE @myDoc xml
SET @myDoc = '<?Instructions for=TheWC.exe ?>
<Root>
<!-- instructions for the 1st work center -->
<Location LocationID="10" LaborHours="1.1" MachineHours=".2" >
Some text 1
<step>Manufacturing step 1 at this work center</step>
<step>Manufacturing step 2 at this work center</step>
</Location>
</Root>'
SELECT @myDoc
-- delete an attribute
SET @myDoc.modify('
delete /Root/Location/@MachineHours
')
SELECT @myDoc
-- delete an element
SET @myDoc.modify('
delete /Root/Location/step[2]
')
SELECT @myDoc
-- delete text node (in <Location>
SET @myDoc.modify('
delete /Root/Location/text()
')
SELECT @myDoc
-- delete all processing instructions
SET @myDoc.modify('
delete //processing-instruction()
')
SELECT @myDoc
--B. ´Ó´æ´¢ÔÚ·ÇÀàÐÍ»¯µÄ xml ÁÐÖеÄÎĵµÖÐɾ³ý½Úµã
delete XML DML Óï¾ä´Ó´æ´¢ÔÚÁÐÖеÄÎĵµÖÐɾ³ý <Features> µÄµÚ¶þ¸ö×ÓÔªËØ¡£
CREATE TABLE #T (i int, x xml)
go
INSERT INTO #T VALUES(1,'<Root>
<ProductDescription ProductID="1" ProductName="Road Bike">
<Features>
<Warranty>1 year parts and labor</Warranty>
<Maintenance>3 year parts and labor extended maintenance is available</Maintenance>
</Features>
</ProductDescription>
</Root>')
go
-- verify the contents before delete£¬query·µ»ØFeaturesÔªËØÏµÄËùÓнڵã,ÒÔXML¸ñʽ·µ»Ø
SELECT x.query('//ProductDescription/Features')
from #T
-- delete the second feature
UPDATE #T
SET x.modify('delete /Root/ProductDescription/Features/*[2]')
-- verify the deletion
SELECT x.query(' //ProductDescription/Features')
from #T
DROP TABLE #T
C. ´Ó·ÇÀàÐÍ»¯µÄ xml ÁÐÖÐɾ³ý½Úµã
create table #T(ProductModelID int primary key,
Instructions xml )
go
insert #T
select ProductModelID, Instructions
from Prod
Ïà¹ØÎĵµ£º
function init() {
var viewChartID = 0;
var viewChartSum = "" ;
reportName = document.getElementById("reportName").value;
xmlDoc=loadXMLDoc("./charreport/xml/viewChart.xml");
x=xmlDoc.getElementsByTagName('viewChart')[0].childNodes;
for (i=0;i<x.length;i++ ......
Õª×Ô£ºhttp://www.cnblogs.com/dicky/archive/2007/01/12/618453.html
¸ñʽ:
CONVERT(data_type,expression[,style])
˵Ã÷:
´ËÑùʽһ°ãÔÚʱ¼äÀàÐÍ(datetime,smalldatetime)Óë×Ö·û´®ÀàÐÍ(nchar,nvarchar,char,varchar)
Ï໥ת»»µÄʱºò²ÅÓõ½.
Àý×Ó:
SELECT CONVERT(varchar(30),getdate(),101) now
½á¹ûΪ ......
XML SchemaÖ÷ÒªÓÃÀ´Éè¼ÆXMLÎĵµµÄ½á¹¹£¬×¢Òâ²»ÊǸñʽ¡£ÓÐÈËÎÊÔõô²»ÊǸñʽ£¿¸ñʽ¸ú½á¹¹Ê²Ã´Çø±ð£¿ÎÒÏë¸ã¿ª·¢µÄÈ˶¼¶Ô´úÂë½øÐиñʽ»¯¹ý£¬Ò²¾ÍÊÇËõ½ø¡¢×ÖÌåµÈµÈ£»¶øÎÒÃÇдµÄ³ÌÐòʵ¼ÊÉÏÒ²ÊǶ¨ÒåÒ»Öֽṹ£¬Ëü²»»áÒòΪÄãÊÇ·ñËõ½ø¡¢²ÉÓò»Í¬µÄ×ÖÌå¾ÍÓÐËù¸Ä±ä°É£¿ºÜ¶àÈËÄÄÁ˲»·ÖÐеÄxmlÎĵµËµÓÃVSµÄ¹¤¾ß¸ ......
Õⲿ·Ö°üº¬ÄÇЩ PostgreSQL Ö§³ÖµÄ SQL ÃüÁîµÄÐÅÏ¢£®ÕâÀïµÄ "SQL" ¾ÍÊǸÃÓïÑÔͨ³£
µÄº¬Ò壻 ÿÌõÃüÁîµÄÓë±ê×¼ÓйصļæÈÝÐÔµÄÐÅÏ¢¿ÉÒÔÔÚÏà¹ØµÄ²Î¿¼Ò³ÖÐÕÒµ½£®
Table of Contents
ABORT -- Í˳öµ±Ç°ÊÂÎñ
ALTER GROUP -- Ïò×éÖÐÔö¼ÓÓû§»ò´Ó×éÖÐɾ³ýÓû§
ALTER USER -- ¸Ä±äÊý¾Ý¿âÓû§Õʺţ®
......
--´¦ÀíʾÀý
--ʾÀýÊý¾Ý
create table tb(ID int,Name varchar(10),ParentID int)
insert tb select 1,'AAAA' ,0
union all select 2,'BBBB' ,0
union all select 3,'CCCC' ,0
union all select 4,'AAAA-1' ,1
union all select 5,'AAAA-2' ,1
u ......