For every login i have to display different proverbs.

Question

Hi all,
Now i am using forms 6i ,database is oracle 10g..
I have to display first proverb in the login screen at users first login.
If user login for second time i have to display second proverb or another new proverb stored in the table..
If anybody Knows how to solve this reqirement..Please Reply me
Regards,
Ansaf..

Answer 1

Create a table to store the last used proverb per user like
CREATE TABLE USER_PROVERB (USERID VARCHAR2(30), LAST_PROVERB NUMBER);Create a database function with an autonomous transaction to retrieve the next proverb:
CREATE OR REPLACE FUNCTION FK_GET_PROVERB(i_vcUser IN VARCHAR2)
RETURN VARCHAR2 IS
  PRAGMA AUTONOMOUS_TRANSACTION;
  CURSOR crLastProverb IS
    SELECT LAST_PROVERB
      FROM USER_PROVERB
     WHERE USERID=i_vcUser;
  CURSOR crNextProverb(i_nLastProverb IN NUMBER) IS
    SELECT SLNO,
           MESG
      FROM PROVERBS
     WHERE SLNO>i_nLastProverb
     ORDER BY SLNO;
  nProverb PROVERBS.SLNO%TYPE;
  vcMesg   PROVERBS.MESG%TYPE;
  bInsert   BOOLEAN:=FALSE;
BEGIN
  OPEN crLastProverb;
  FETCH crLastProverb INTO nProverb;
  IF crLastProverb%NOTFOUND THEN
    nProverb:=-1;
    -- Set flag to insert
    bInsert:=TRUE;
  END IF;
  CLOSE crLastProverb;
  -- Fecth next proverb
  OPEN crNextProverb(nProverb);
  FETCH crNextProverb INTO nProverb,
                                 vcMesg;        
  CLOSE crNextProverb;
  -- remember last one
  IF bInsert THEN
    INSERT INTO USER_PROVERB (
      USERID,
      LAST_PROVERB
    ) VALUES (
      i_vcUser,
      nProverb
  ELSE
    UPDATE USER_PROVERB SET
      LAST_PROVERB=nProverb
     WHERE USERID=i_vcUser;
  END IF;
  -- Autonomous transaction commit
  COMMIT;
  -- return the retrieved text
  RETURN vcMesg;
END;(Code is just prototyped, not tested)
Now, just call that function to show the text