我有一个问题，关于用于将3个表放在关系中的代码，从XML文件开始。
这三个表是组织，出版物和事实表，以使它们处于关系中。
表格结构下方：
PUBLICATION
------------
CD_PUB (primary key, progressive number automatically generated when a new record has been inserted, thus the value is not taken from the XML file)
CD_REC
ORGANISATION
------------
CD_ORG (primary key, progressive number automatically generated when a new record has been inserted, thus the value is not taken from the XML file)
FT_PUB_ORG
------------
CD_FT (primary key, progressive number automatically generated when a new record has been inserted, thus the value is not taken from the XML file)
CD_ORG (I want to insert here the related code of the Organisation)
我使用的代码是：
BEGIN
FOR i IN 1..10 LOOP
INSERT INTO WOS_DM_PUBLICATION (
CD_UID
, DT_COVERDATE
, FL_HAS_ABSTRACT
, QT_ISSUE
, DT_PUBMONTH
, CD_PUBTYPE
, DT_PUBYEAR
, DT_SORTDATE
, QT_VOL
, CD_PAGE_BEGIN
, CD_PAGE_END
, CD_PAGE
, QT_PAGE_COUNT
, QT_TITLE_COUNT
, LB_TITLE_SOURCE
, LB_TITLE_SERIES
, LB_TITLE_SOURCE_ABBREV
, LB_TITLE_ABBREV_ISO
, LB_TITLE_ABBREV_11
, LB_TITLE_ABBREV_29
, LB_TITLE_ITEM
, LB_TITLE_BOOK_SERIES
, CD_ACCESSION_NO
, CD_LANG_TYPE
, CD_LANG_NORM
, CD_IDS
, FL_IDS_AVAIL
, CD_BIB_ID
, CD_BIB_PAGECOUNT
)
select
RecUid.cd_uid
, PubInfo.*
, Titles.*
, Title.*
, Acc_no.*
, Lang.*
, Lang2.*
, Items.*
from testtable2 t
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'records/REC'
passing t.xml_file
columns
CD_UID varchar2(200) path 'UID',
names xmltype path 'static_data/summary',
identifi xmltype path 'dynamic_data/cluster_related',
lang xmltype path 'static_data/fullrecord_metadata',
item xmltype path 'static_data/item'
) RecUid
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'summary/pub_info'
passing RecUid.names
columns
DT_COVERDATE varchar2(20) path '@coverdate',
FL_HAS_ABSTRACT varchar2(20) path '@has_abstract',
QT_ISSUE varchar2(20) path '@issue',
DT_PUBMONTH varchar2(20) path '@pubmonth',
CD_PUBTYPE varchar2(20) path '@pubtype',
DT_PUBYEAR varchar2(20) path '@pubyear',
DT_SORTDATE varchar2(20) path '@sortdate',
QT_VOL varchar2(20) path '@vol',
CD_PAGE_BEGIN varchar2(20) path 'page/@begin',
CD_PAGE_END varchar2(20) path 'page/@end',
CD_PAGE varchar2(20) path 'page',
CD_PAGE_COUNT varchar2(20) path 'page/@page_count'
) PubInfo
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'summary/titles'
passing RecUid.names
columns
QT_TITLE_COUNT varchar2(20) path '@count'
) Titles
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'summary/titles'
passing RecUid.names
columns
LB_TITLE_SOURCE varchar2(200) path 'title[@type="source"]',
LB_TITLE_SERIES varchar2(200) path 'title[@type="series"]',
LB_TITLE_SOURCE_ABBREV varchar2(200) path 'title[@type="source_abbrev"]',
LB_TITLE_ABBREV_ISO varchar2(200) path 'title[@type="abbrev_iso"]',
LB_TITLE_ABBREV_11 varchar2(200) path 'title[@type="abbrev_11"]',
LB_TITLE_ABBREV_29 varchar2(200) path 'title[@type="abbrev_29"]',
LB_TITLE_ITEM varchar2(200) path 'title[@type="item"]',
LB_TITLE_BOOK_SERIES varchar2(200) path 'title[@type="book_series"]'
) Title
cross join xmltable( xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'cluster_related/identifiers/identifier[@type="accession_no"]'
passing RecUid.identifi
columns
CD_ACCESSION_NO varchar2(200) path '@value'
) Acc_no
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'fullrecord_metadata/languages/language[@type="primary"]'
passing RecUid.lang
columns
CD_LANG_TYPE varchar2(200) path '.'
--CD_LANG_NORM varchar2(200) path 'normalized_languages/language'
) Lang
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'fullrecord_metadata/normalized_languages/language[@type="primary"]'
passing RecUid.lang
columns
CD_LANG_NORM varchar2(200) path '.'
) Lang2
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'item'
passing RecUid.item
columns
CD_IDS VARCHAR(200) path 'ids',
FL_IDS_AVAIL VARCHAR(2) path 'ids/@avail',
CD_BIB_ID VARCHAR(50) path 'bib_id',
CD_BIB_PAGECOUNT VARCHAR(25) path 'bib_pagecount'
) Items ;
INSERT INTO WOS_DM_ORGANISATION (
LB_LEGAL_NAME
, CD_ADD_NO
, LB_FULL_ADDRESS
, CD_CITY
, CD_STATE
, CD_COUNTRY_NAME
-- , CD_POSTAL_CODE
, CD_ZIP_LOCATION
, FL_PARENT
)
select
Organis.*
, 'Y' FL_PARENT
from testtable2 t
cross join xmltable(xmlnamespaces(default 'xxxxxxxxxxxxxxxx'),
'records/REC/static_data/fullrecord_metadata/addresses/address_name'
passing t.xml_file
columns
LB_LEGAL_NAME varchar2(200) path 'address_spec/organizations/organization',
CD_ADD_NO varchar2(200) path 'address_spec/@addr_no',
LB_FULL_ADDRESS varchar2(200) path 'address_spec/full_address',
CD_CITY varchar2(200) path 'address_spec/city',
CD_STATE varchar2(200) path 'address_spec/state',
CD_COUNTRY_NAME varchar2(200) path 'address_spec/country',
-- CD_POSTAL_CODE varchar2(200) path 'address_spec/zip/.'--,
CD_ZIP_LOCAZION varchar2(200) path 'address_spec/@location'
) Organis ;
INSERT INTO FT_PUB_ORG_TEST
(
CD_PUB_ID ,
CD_ORG_ID )
VALUES
(
WOS_DM_PUBLICATION_id_seq.currval,
WOS_DM_ORGANISATION_id_seq.currval);
x := x + 1;
END LOOP;
COMMIT;
END;
问题是，使用此代码我只有FT表中的最终值，但我想要所有的关系。 我已经尝试过使用INSERT ALL语句，但似乎不能将SELECT作为值使用。
请考虑循环只是一次尝试，但它根本不需要。
答案 0 :(得分：0)
听起来你想要创建一个集合类型
CREATE TYPE num_tbl
AS TABLE OF NUMBER;
在PL / SQL块中，您将声明一些集合
DECLARE
l_publication_keys num_tbl;
l_organization_keys num_tbl;
BEGIN
...
然后，您的INSERT语句将使用RETURNING子句将生成的主键加载到集合中
INSERT INTO WOS_DM_PUBLICATION( <<columns>> )
SELECT <<whatever>>
FROM <<whatever>>
ORDER BY <<something>>
RETURNING cd_pub_id
BULK COLLECT INTO l_publication_keys;
您使用WOS_DM_ORGANISATION insert语句执行相同的操作。然后，您可以通过迭代集合
FOR j in 1 .. l_publication_keys.count
LOOP
INSERT INTO FT_PUB_ORG_TEST (
CD_PUB_ID ,
CD_ORG_ID )
VALUES (
l_publication_keys(j),
l_organization_keys(j)
);
END LOOP;
这假设两个集合总是具有完全相同数量的元素，并且您总是希望匹配每个insert语句的第j行。这似乎有风险，除非你的数据中有一些你没有提到的。
如果您想使用cd_uid列来关联两个集合中的数据，您可能需要为集合创建一个对象类型。
CREATE TYPE uid_obj
AS OBJECT (
cd_uid integer, -- I'm guessing at the data type
key integer
);
CREATE TYPE uid_tbl
AS TABLE OF uid_obj;
您的本地变量将成为新类型的集合
DECLARE
l_publication_keys uid_tbl;
l_organization_keys uid_tbl;
BEGIN
您的RETURNING子句将更改为
RETURNING uid_obj( cd_uid, cd_pub_id )
BULK COLLECT INTO l_publication_keys;
然后最后INSERT可能是
INSERT INTO FT_PUB_ORG_TEST (
CD_PUB_ID ,
CD_ORG_ID )
SELECT p.key,
o.key
FROM TABLE( l_publication_keys ) p
JOIN TABLE( l_organization_keys ) o
ON( p.uid_cd = o.uid_cd );