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我已經編寫了一個存儲過程以將來自xml的數據存儲到表中。以下均DDLPL-SQL存儲過程中用於XML中每個段的唯一ID生成
CREATE TABLE STUDENT (
CONTROL_ID NUMBER(*,0),
BATCHS VARCHAR2(255),
FNAME VARCHAR2(255),
ROLL VARCHAR2(255),
CITY VARCHAR2(255),
CONSTRAINT PK_STUDENT PRIMARY KEY (CONTROL_ID, BATCHS)
);
CREATE TABLE MARKS_CHAR (
CONTROL_ID NUMBER(*,0),
BATCHS VARCHAR2(255),
SUBJECT VARCHAR2(255),
MARK_NUMBER NUMBER(*,0),
MARK_GRADE VARCHAR2(255),
UNIT VARCHAR2(255),
FOREIGN KEY (CONTROL_ID, BATCHS) REFERENCES STUDENT (CONTROL_ID, BATCHS)
);
CREATE SEQUENCE SEQ_STUDENT MINVALUE 1000 MAXVALUE 9999999999999999999999999999 INCREMENT BY 3 START WITH 1000 CACHE 10 NOORDER NOCYCLE NOPARTITION ;
&下面是該過程和示例XML分別
create or replace PROCEDURE STUDENT_MARKS_UPLOAD(XMLINPUT IN CLOB) AS
controlid INT;
BEGIN
SELECT SEQ_STUDENT.NEXTVAL INTO controlid FROM DUAL;
INSERT INTO STUDENT(CONTROL_ID,BATCHS,FNAME,ROLL,CITY)
SELECT controlid,x.* FROM xmltable (
XMLNAMESPACES('http://some.clg.india/statelevel' as "ns"),
'//ns:student'
PASSING xmltype(XMLINPUT)
COLUMNS
BATCHS VARCHAR2(255) PATH '//ns:header/ns:batch',
FNAME VARCHAR2(255) PATH '//ns:header/ns:name',
ROLL VARCHAR2(255) PATH '//ns:header/ns:roll',
CITY VARCHAR2(255) PATH '//ns:header/ns:city'
)x;
INSERT INTO MARKS_CHAR(CONTROL_ID,UNIT,BATCHS,SUBJECT,MARK_GRADE)
SELECT controlid,'string',x.* FROM xmltable (
XMLNAMESPACES('http://some.clg.india/statelevel' as "ns"),
'//ns:marks[ns:subject/text()!=''Humanities'' and ns:subject/text()!=''Values and Ethics'' and ((string-length(ns:gwrt/text())>0) and (string-length(ns:mnum/text())=0))]'
PASSING xmltype(XMLINPUT)
COLUMNS
BATCHS VARCHAR2(255) PATH './parent::*/ns:header/ns:batch',
SUBJECT VARCHAR2(255) PATH '//ns:subject',
MARK_GRADE VARCHAR2(2000) PATH '//ns:gwrt'
)x;
INSERT INTO MARKS_CHAR(CONTROL_ID,UNIT,BATCHS,SUBJECT,MARK_NUMBER)
SELECT controlid,'number',x.* FROM xmltable (
XMLNAMESPACES('http://some.clg.india/statelevel' as "ns"),
'//ns:marks[ns:subject/text()!=''Humanities'' and ns:subject/text()!=''Values and Ethics'' and ((string-length(ns:mnum/text())>0) and (string-length(ns:gwrt/text())=0))]'
PASSING xmltype(XMLINPUT)
COLUMNS
BATCHS VARCHAR2(255) PATH './parent::*/ns:header/ns:batch',
SUBJECT VARCHAR2(255) PATH '//ns:subject',
MARK_NUMBER INT PATH '//ns:mnum'
)x;
END ANNOUNCEITEMS_UPLOAD;
<class xmlns="http://some.clg.india/statelevel">
<student>
<header>
<name>Topesh</name>
<roll>0002</roll>
<batch>A001</batch>
<address>WB, India</address>
<city>Kolkata</city>
</header>
<marks>
<subject>Math</subject>
<mnum>85</mnum>
</marks>
<marks>
<subject>Language</subject>
<gwrt>A</gwrt>
</marks>
<marks>
<subject>Humanities</subject>
<mnum>89</mnum>
</marks>
<marks>
<subject>Geo</subject>
<gwrt>O</gwrt>
</marks>
<marks>
<subject>History</subject>
<gwrt>A+</gwrt>
</marks>
<marks>
<subject>Physics</subject>
<mnum>90</mnum>
</marks>
<marks>
<subject>Chemistry</subject>
<gwrt>B+</gwrt>
</marks>
<marks>
<subject>Values and Ethics</subject>
<mnum>93</mnum>
</marks>
</student>
<student>
<header>
<name>Subham</name>
<roll>0003</roll>
<batch>B002</batch>
<address>UP, India</address>
<city>Kanpur</city>
</header>
<marks>
<subject>Math</subject>
<mnum>98</mnum>
</marks>
<marks>
<subject>Language</subject>
<gwrt>C+</gwrt>
</marks>
<marks>
<subject>Humanities</subject>
<mnum>67</mnum>
</marks>
<marks>
<subject>Geo</subject>
<gwrt>E</gwrt>
</marks>
<marks>
<subject>History</subject>
<gwrt>A</gwrt>
</marks>
<marks>
<subject>Physics</subject>
<mnum>97</mnum>
</marks>
<marks>
<subject>Chemistry</subject>
<gwrt>O</gwrt>
</marks>
<marks>
<subject>Values and Ethics</subject>
<mnum>58</mnum>
</marks>
</student>
<student>
<header>
<name>Vinay</name>
<roll>0001</roll>
<batch>C003</batch>
<address>Kerakla, India</address>
<city>Bangalore</city>
</header>
<marks>
<subject>Math</subject>
<mnum>99</mnum>
</marks>
<marks>
<subject>Language</subject>
<gwrt>B</gwrt>
</marks>
<marks>
<subject>Humanities</subject>
<mnum>81</mnum>
</marks>
<marks>
<subject>Geo</subject>
<gwrt>E</gwrt>
</marks>
<marks>
<subject>History</subject>
<gwrt>E</gwrt>
</marks>
<marks>
<subject>Physics</subject>
<mnum>92</mnum>
</marks>
<marks>
<subject>Chemistry</subject>
<gwrt>E</gwrt>
</marks>
<marks>
<subject>Values and Ethics</subject>
<mnum>87</mnum>
</marks>
</student>
</class>
輸出如下：
對於表STUDENT
CONTROL_ID BATCHS FNAME ROLL CITY 1000 A001 Topesh 0002 Kolkata 1000 B002 Subham 0003 Kanpur 1000 C003 Vinay 0001 Bangalore對於表MARKS_CHAR
CONTROL_ID BATCHS SUBJECT MARK_NUMBER MARK_GRADE UNIT 1000 A001 Language A string 1000 A001 Geo O string 1000 A001 History A+ string 1000 A001 Chemistry B+ string 1000 B002 Language C+ string 1000 B002 Geo E string 1000 B002 History A string 1000 B002 Chemistry O string 1000 C003 Language B string 1000 C003 Geo E string 1000 C003 History E string 1000 C003 Chemistry E string 1000 A001 Math 85 number 1000 A001 Physics 90 number 1000 B002 Math 98 number 1000 B002 Physics 97 number 1000 C003 Math 99 number 1000 C003 Physics 92 number
但要求是針對每個student段，應該有一個獨特的CONTROL_ID，即，期望的輸出將是
CONTROL_ID BATCHS FNAME ROLL CITY
1000 A001 Topesh 0002 Kolkata
1003 B002 Subham 0003 Kanpur
1006 C003 Vinay 0001 Bangalore
和
CONTROL_ID BATCHS SUBJECT MARK_NUMBER MARK_GRADE UNIT
1000 A001 Language A string
1000 A001 Geo O string
1000 A001 History A+ string
1000 A001 Chemistry B+ string
1003 B002 Language C+ string
1003 B002 Geo E string
1003 B002 History A string
1003 B002 Chemistry O string
1006 C003 Language B string
1006 C003 Geo E string
1006 C003 History E string
1006 C003 Chemistry E string
1000 A001 Math 85 number
1000 A001 Physics 90 number
1003 B002 Math 98 number
1003 B002 Physics 97 number
1006 C003 Math 99 number
1006 C003 Physics 92 number
請幫助如何在不改變任何模式的情況下在程序中實現此目的。 我使用的SQLDeveloper