我有问题将xmltype插入到pl / sql中指定位置的另一个xmltype中。
第一个变量v_xml的格式为:
<ord>
<head>
<ord_code>123</ord_code>
<ord_date>01-01-2015</ord_date>
</head>
</ord>
第二个v_xml2:
<pos>
<pos_code>456</pos_code>
<pos_desc>description</pos_desc>
</pos>
我的目的是得到这样的东西:
<ord>
<head>
<ord_code>123</ord_code>
<ord_date>01-01-2015</ord_date>
</head>
<!-- put the second variable in this place - after closing <head> tag -->
<pos>
<pos_code>456</pos_code>
<pos_desc>description</pos_desc>
</pos>
</ord>
我的代码应该怎么做?
declare
v_xml xmltype;
v_xml2 xmltype;
begin
-- some code
-- some code
-- v_xml and v_xml2 has the form as I define above
end;
有人能帮我解决这个问题吗?我知道有像insertchildxml,appendchildxml或类似的东西...... 我在纯SQL中找不到一些解决方案,但我不知道如何在PL / SQL中移动它。
谢谢!
答案 0 :(得分:2)
您可以使用提及的appendChildXML,例如:
declare
v_xml xmltype := xmltype('<ord>
<head>
<ord_code>123</ord_code>
<ord_date>01-01-2015</ord_date>
</head>
</ord>');
v_xml2 xmltype:= xmltype('<pos>
<pos_code>456</pos_code>
<pos_desc>description</pos_desc>
</pos>');
v_output xmltype;
begin
select appendChildXML(v_xml, 'ord', v_xml2)
into v_output from dual;
-- output result
dbms_output.put_line( substr( v_output.getclobval(), 1, 1000 ) );
end;
输出:
<ord>
<head>
<ord_code>123</ord_code>
<ord_date>01-01-2015</ord_date>
</head>
<pos>
<pos_code>456</pos_code>
<pos_desc>description</pos_desc>
</pos>
</ord>
答案 1 :(得分:2)
appendChildXML已弃用,为12.1
所以这是使用XMLQuery
的解决方案DECLARE
l_head_xml XMLTYPE := XMLTYPE.CREATEXML('<ord>
<head>
<ord_code>123</ord_code>
<ord_date>01-01-2015</ord_date>
</head>
</ord>');
l_pos_xml XMLTYPE := XMLTYPE.CREATEXML('<pos>
<pos_code>456</pos_code>
<pos_desc>description</pos_desc>
</pos>');
l_complete_xml XMLTYPE;
BEGIN
SELECT XMLQUERY('for $i in $h/ord/head
return <ord>
{$i}
{for $j in $p/pos
return $j}
</ord>'
PASSING l_head_xml AS "h",
l_pos_xml AS "p"
RETURNING CONTENT)
INTO l_complete_xml
FROM dual;
dbms_output.put_line(l_complete_xml.getstringval());
END;
答案 2 :(得分:0)
这是使用XMLQuery的一种解决方案
DECLARE
l_src XMLTYPE:=XMLTYPE('<ord>
<head>
<ord_code>123</ord_code>
<ord_date>01-01-2015</ord_date>
</head>
</ord>');
l_dst XMLTYPE:=XMLTYPE('<pos>
<pos_code>456</pos_code>
<pos_desc>description</pos_desc>
</pos>');
l_final CLOB;
BEGIN
SELECT XMLQUERY('copy $tmp := $p1 modify
insert node $p2 as last into $tmp
return $tmp' PASSING l_src as "p1",l_dst as "p2" RETURNING CONTENT).getClobval() into l_final from dual;
DBMS_OUTPUT.PUT_LINE(l_final);
END;