XMLElement: output result in XML : XMLElement « XML « Oracle PL / SQL






XMLElement: output result in XML

 


SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /

Table created.

SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ('01','Jason',    'Martin',  to_date('19960725','YYYYMMDD'), to_date('20060725','YYYYMMDD'), 1234.56, 'Toronto',  'Programmer')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('02','Alison',   'Mathews', to_date('19760321','YYYYMMDD'), to_date('19860221','YYYYMMDD'), 6661.78, 'Vancouver','Tester')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('03','James',    'Smith',   to_date('19781212','YYYYMMDD'), to_date('19900315','YYYYMMDD'), 6544.78, 'Vancouver','Tester')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('04','Celia',    'Rice',    to_date('19821024','YYYYMMDD'), to_date('19990421','YYYYMMDD'), 2344.78, 'Vancouver','Manager')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('05','Robert',   'Black',   to_date('19840115','YYYYMMDD'), to_date('19980808','YYYYMMDD'), 2334.78, 'Vancouver','Tester')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('06','Linda',    'Green',   to_date('19870730','YYYYMMDD'), to_date('19960104','YYYYMMDD'), 4322.78,'New York',  'Tester')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('07','David',    'Larry',   to_date('19901231','YYYYMMDD'), to_date('19980212','YYYYMMDD'), 7897.78,'New York',  'Manager')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('08','James',    'Cat',     to_date('19960917','YYYYMMDD'), to_date('20020415','YYYYMMDD'), 1232.78,'Vancouver', 'Tester')
  3  /

1 row created.

SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /

ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer

02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78            Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78            Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78            Tester

06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78            Manager

08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester


8 rows selected.

SQL>
SQL> -- XMLElement: transforms data into XML format.
SQL> -- The function takes two arguments ?the tag name and the data. Consider this example:
SQL>
SQL> SELECT xmlelement("Name",first_name), xmlelement("id",id), xmlelement("Date", start_date)
  2  FROM employee;

XMLELEMENT("NAME",FIRST_NAME)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
XMLELEMENT("ID",ID)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
XMLELEMENT("DATE",START_DATE)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
<Name>Jason</Name>
<id>01</id>
<Date>1996-07-25</Date>

<Name>Alison</Name>
<id>02</id>
<Date>1976-03-21</Date>

<Name>James</Name>
<id>03</id>
<Date>1978-12-12</Date>

<Name>Celia</Name>
<id>04</id>
<Date>1982-10-24</Date>

<Name>Robert</Name>
<id>05</id>
<Date>1984-01-15</Date>

<Name>Linda</Name>
<id>06</id>
<Date>1987-07-30</Date>

<Name>David</Name>
<id>07</id>
<Date>1990-12-31</Date>

<Name>James</Name>
<id>08</id>
<Date>1996-09-17</Date>


8 rows selected.

SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /

Table dropped.

SQL>
SQL>
           
         
  








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