How to insert in two tables

Question

Hello,
I have a form that should be insert/update data in two tables. in the context.
the form is based on a GPV_REASSIGN table,then i want to insert into this table and also into an audit table named GPV_AUDIT_REASSIGN each time i make a commit form.
2) iI would like also to read the GPV_REASSIGN table everyday to find out if there are new records, if so take these records and update two others tables. notice i want to do this transaction everynight.
I know i have to write a procedure to that, but i don't really know the concept behind this kind of transaction.
could someone help me, please?

Answer 1

1) There are two apporaches to this kind of auditing information:
- Use databasebase triggers to do the appropiate insert into the audit-table
SQL> DROP TABLE TEST;
Tabelle wurde gel÷scht.
SQL> DROP TABLE TEST_HIST;
Tabelle wurde gel÷scht.
SQL>
SQL>
SQL> CREATE TABLE  TEST
  2     (       ID NUMBER,
  3     DATA VARCHAR2(20)
  4     )
5  /
Tabelle wurde erstellt.
SQL>
SQL> CREATE TABLE  TEST_HIST
  2     (       ID NUMBER,
  3     DATA VARCHAR2(10),
  4     DATE_CHANGED DATE,
  5     ACTION VARCHAR2(1),
  6     USER_CHANGED VARCHAR2(30)
  7     )
  8  /
Tabelle wurde erstellt.
SQL> CREATE OR REPLACE TRIGGER  TRG_TABLE_ARIU
  2  AFTER INSERT OR UPDATE ON TEST
  3  FOR EACH ROW
  4  DECLARE
  5   vcAktion VARCHAR2(1);
  6  BEGIN
  7    IF INSERTING THEN
  8      vcAktion:='I';
  9    ELSE
10      vcAktion:='U';
11    END IF;
12    INSERT INTO TEST_HIST (
13      ID,
14      DATA,
15      DATE_CHANGED,
16      ACTION,
17      USER_CHANGED
18    ) VALUES (
19      :NEW.ID,
20      :NEW.DATA,
21      SYSDATE,
22      vcAktion,
23      USER
24    );
25  END;
26  /
Trigger wurde erstellt.
SQL> INSERT INTO TEST (ID, DATA) VALUES (1, 'Mein Text');
1 Zeile wurde erstellt.
SQL> UPDATE TEST SET DATA='Dein Text' WHERE ID=1;
1 Zeile wurde aktualisiert.
SQL> SELECT * FROM TEST;
        ID DATA
         1 Dein Text
SQL> SELECT * FROM TEST_HIST;
        ID DATA       DATE_CHA A USER_CHANGED
         1 Mein Text  08.12.08 I HR
         1 Dein Text  08.12.08 U HR
SQL>Advantage of this method is that it is always executed regardless form the insert comes.
- Use a POST-INSERT-trigger and POST-UPDATE-trigger on the client-side in the form itself to do the appropiate insert into the audit-table
POST-INSERT-trigger
INSERT INTO TEST_HIST (
  ID,
  DATA,
  DATE_CHANGED,
  ACTION,
  USER_CHANGED
) VALUES (
  :BLOCK.ID,
  :BLOCK.DATA,
  SYSDATE,
  'I',
  USER
);POST-UPDATE-trigger
INSERT INTO TEST_HIST (
  ID,
  DATA,
  DATE_CHANGED,
  ACTION,
  USER_CHANGED
) VALUES (
  :BLOCK.ID,
  :BLOCK.DATA,
  SYSDATE,
  'A',
  USER
);2) Create a DB-procedure to do your task (example-logic):
CREATE OR REPLACE PROCEDURE PR_MYPROC IS
BEGIN
  INSERT INTO TABLE2 (
    IDCOLUMN,
    COL2,
    COL3
  ) (SELECT IDCOLUMN,
            VAL2,
            VAL3
       FROM MYBASETABLE OUTER
      WHERE NOT EXISTS (SELECT 1
                          FROM TABLE2 INNER
                         WHERE INNER.IDCOLUMN=OUTER.IDCOLUMN
END;
/then you can use DBMS_SCHEDULER-package to create a job which runs every night.