Search This Blog

Follow by Email

Monday, December 14, 2015

Getting started with Oracle Stored Procedure and parse clob xml data and cursor



This Post will having the details to create stored procedure in oracle and parsing the clob data through stored procedure.
employee.xml
-------------


  siva
  32
  M

Above xml will be stored as clob data in Person table

Person table Schema -

Id NUMBER,
Name Varchar2(50),
employee_details clob

Above xml will be stored as clob data in Person table
create table PERSON (Id NUMBER, Name varchar2(50), employee_details clob);
  create table EMPLOYEE (Name varchar2(50), age NUMBER ,sex varchar2(10));
We need to parse the clob data using oracle procedure

create or replace PROCEDURE SP_PARSE_CLOB (person_id NUMBER) AS
  PERSION_ID Person.id%type;
  PERSON_NAME Person.name%type;
  EMPLOYEE_DETAILS Person.employee_details%type;
  name varchar2(50);
  age varchar2(50);
  sex varchar2(50);
  EMPLOYEE_exc EXCEPTION;
  -- Create a cursor
 cursor personDataCursor IS SELECT id, Name,employee_details from PERSON;
 BEGIN
   OPEN personDataCursor;
 LOOP
 FETCH personDataCursor into PERSION_ID,PERSON_NAME,EMPLOYEE_DETAILS;
 EXIT WHEN personDataCursor%notfound;
 IF XMLTYPE(EMPLOYEE_DETAILS).existSNode('/Employee/name/text()') > 0 THEN
   name := XMLTYPE(EMPLOYEE_DETAILS).extract('/Employee/name/text()').getStringVal();
 END IF;
 IF XMLTYPE(EMPLOYEE_DETAILS).existSNode('/Employee/age/text()') > 0 THEN
  age := XMLTYPE(EMPLOYEE_DETAILS).extract('/Employee/age/text()').getStringVal();
 END IF;
 IF XMLTYPE(EMPLOYEE_DETAILS).existSNode('/Employee/sex/text()') > 0 THEN
  sex := XMLTYPE(EMPLOYEE_DETAILS).extract('/Employee/sex/text()').getStringVal();
 END IF;
 dbms_output.put_line('Name:'|| name|| ' ' || 'Age:' || ' ' ||age || ' ' || 'Sex:' || ' ' || sex);
 -- Inset into another table
BEGIN
  insert into EMPLOYEE(name,age,sex) values(name,age,sex);
 EXCEPTION
    WHEN OTHERS
   THEN
    RAISE EMPLOYEE_exc;
  END;
  commit;
  END LOOP;

EXCEPTION
    WHEN EMPLOYEE_exc
      THEN
        rollback;
     -- Do what ever you want like insert log details in any another table
    commit;
    DBMS_OUTPUT.PUT_LINE ('Insertion failed in EMPLOYEE : '|| '' || name);
    END;

AddToAny

Contact Form

Name

Email *

Message *