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Выборка из XML.
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/* | |
Имеется | |
xmltype(' | |
<root> | |
<row> | |
<col>v11</col> | |
<col>v12</col> | |
<col>v13</col> | |
<col>v14</col> | |
</row> | |
<row> | |
<col>v21</col> | |
<col>v22</col> | |
<col>v23</col> | |
<col>v24</col> | |
</row> | |
</root>') | |
Необходимо: | |
а) Получить выборку | |
C1 C2 C3 C4 | |
---- ---- ---- ---- | |
v11 v12 v13 v14 | |
v21 v22 v23 v24 | |
Условие: количество узлов row может варьироваться, col всегда статично = 4 шт в пределах row. | |
*/ | |
SELECT p.* | |
FROM XMLTABLE ( 'root/row' | |
PASSING (XMLTYPE('<root> | |
<row> | |
<col>v11</col> | |
<col>v12</col> | |
<col>v13</col> | |
<col>v14</col> | |
</row> | |
<row> | |
<col>v21</col> | |
<col>v22</col> | |
<col>v23</col> | |
<col>v24</col> | |
</row> | |
</root> | |
')) | |
COLUMNS | |
c1 VARCHAR2(255) PATH '/row/col[1]', | |
c2 VARCHAR2(255) PATH '/row/col[2]', | |
c3 VARCHAR2(255) PATH '/row/col[3]', | |
c4 VARCHAR2(255) PATH '/row/col[4]' | |
) p; |
Author
aykononov
commented
Nov 11, 2019
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