Re: storing data horizontal vs vertical using pl/sql
- From: "Norman Dunbar" <norman.dunbar@xxxxxxxxxxxxxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>, <raja4list@xxxxxxxxx>
- Date: Wed, 18 Jan 2006 16:56:30 +0000
Raj,
You could, and I'm making this up as I go along, do something like :
CREATE TABLE hospital(acct# NUMBER, medrec# NUMBER, dx1 NUMBER, dx2
NUMBER, dx3 NUMBER);
ALTER TABLE hospital ADD CONSTRAINT hospital_pk PRIMARY KEY
(acct#,medrec#);
CREATE TABLE diagnosis(acct# NUMBER, md# NUMBER, position NUMBER, dx
NUMBER);
ALTER TABLE diagnosis ADD CONSTRAINT diagnosis_pk PRIMARY KEY
(acct#,md#, position);
INSERT INTO hospital VALUES (1,1,100.1, 200.2, 300.3);
INSERT INTO hospital VALUES (1,2,1000.1, 2000.2, 3000.3);
COMMIT;
SELECT * FROM hospital;
DECLARE
CURSOR GetData(p_x IN NUMBER) IS
SELECT acct#,
medrec#,
CASE WHEN p_x = 1 THEN dx1
WHEN p_x = 2 THEN dx2
WHEN p_x = 3 THEN dx3
END AS dx_value
FROM hospital;
BEGIN
FOR x IN 1..3 LOOP
FOR y IN GetData(x) LOOP
EXECUTE IMMEDIATE 'insert into diagnosis values (:acct, :md,
:position, :dx)'
USING y.acct#, y.medrec#, x, y.dx_value;
END LOOP;
END LOOP;
END;
COMMIT;
SELECT * FROM diagnosis
ORDER BY acct#, md#, position;
The output uis as follows :
Table created.
Table altered.
Table created.
Table altered.
1 row created.
1 row created.
Commit complete.
ACCT# MEDREC# DX1 DX2 DX3
---------- ---------- ---------- ---------- ----------
1 1 100.1 200.2 300.3
1 2 1000.1 2000.2 3000.3
2 rows selected.
PL/SQL procedure successfully completed.
Commit complete.
ACCT# MD# POSITION DX
---------- ---------- ---------- ----------
1 1 1 100.1
1 1 2 200.2
1 1 3 300.3
1 2 1 1000.1
1 2 2 2000.2
1 2 3 3000.3
6 rows selected.
It's a major bummer when you are left to sort out the 'errors' of a
database designer - been there, had to do it, hated it !
Good luck.
Cheers,
Norman.
Norman Dunbar.
Contract Oracle DBA.
Rivers House, Leeds.
Internal : 7 28 2051
External : 0113 231 2051
>>> raja rao <raja4list@xxxxxxxxx> 01/18/06 03:59pm >>>
Hi Team,
Can someone help me in moving the data from one table into multiple
tables.
The situation is:
I have a table called hospital that contains the below columns:
acct#, medrec#, diagnosis(dx1), dx2,dx3,dx4.... dxN
Right now i have everythign in one table called hospital. But
management requires this data to be split into 2 tbales.
1 is the header table which should contain only acct#,medrec#
2. the second table(line items) should be able to hold the diagnosis
information.
the second table strucure is like this:
desc ICD9_DX
acct# number,
mr# number,
dx number
position number
the hospital table (main table) will hold data like this for
diagnosis:
101.1, 980.0, 7878.1, 7484.1, 5734.4 ..............
But this diagnosis should store like this in the ICD_9_DX table:
diagnosis position
101.1 1
980.0 2
7878.1 3
7484.1 4
5734.4 5
can someone give me some hint how this can be achieved with pl/sql.
Thakns in advance,
Raj
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