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Primary Foreign key creation on Oracle tables

Posted on 2013-12-26
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Last Modified: 2013-12-26
I have my main table POLICY_DATA and heres the script

CREATE TABLE POLICY_DATA_LINK
(
  POL_LINK_ID    NUMBER,
  POL_LINK_URL   VARCHAR2(100 BYTE),
  POL_LINK_PATH  VARCHAR2(255 BYTE),
  POL_DETAIL_ID  NUMBER
)
LOGGING
NOCOMPRESS
NOCACHE
NOPARALLEL
MONITORING;


CREATE UNIQUE INDEX POLICY_DATA_LINK_PK ON POLICY_DATA_LINK
(POL_LINK_ID)
LOGGING
NOPARALLEL;


ALTER TABLE POLICY_DATA_LINK ADD (
  CONSTRAINT POLICY_DATA_LINK_PK
  PRIMARY KEY
  (POL_LINK_ID)
  USING INDEX POLICY_DATA_LINK_PK
  ENABLE VALIDATE);

Then I created a details table POLICY_DATA_DETAILS and heres the script

CREATE TABLE POLICY_DATA_DETAILS
(
  POL_DETAIL_ID     NUMBER                      NOT NULL,
  POL_DATA_ID       NUMBER                      NOT NULL,
  POL_DETAIL_TITLE  VARCHAR2(100 BYTE),
  POL_DETAIL_DESC   CLOB
)
LOB (POL_DETAIL_DESC) STORE AS (
  TABLESPACE  ANET_DATA
  ENABLE      STORAGE IN ROW
  CHUNK       8192
  RETENTION
  NOCACHE
  LOGGING
      STORAGE    (
                  INITIAL          64K
                  MINEXTENTS       1
                  MAXEXTENTS       UNLIMITED
                  PCTINCREASE      0
                  FREELISTS        1
                  FREELIST GROUPS  1
                  BUFFER_POOL      DEFAULT
                 ))
LOGGING
NOCOMPRESS
NOCACHE
NOPARALLEL
MONITORING;


CREATE OR REPLACE TRIGGER POLICY_DETAIL_TRG
BEFORE INSERT
ON POLICY_DATA_DETAILS
REFERENCING NEW AS New OLD AS Old
FOR EACH ROW
DECLARE
  N NUMBER;
BEGIN
-- For Toad:  Highlight column TALENT_ID
  Select POLICY_SEQ.nextval into n from dual;
  :new.POL_DETAIL_ID := N;
END POLICY_DETAIL_TRG;
/


ALTER TABLE POLICY_DATA_DETAILS ADD (
  FOREIGN KEY (POL_DATA_ID)
  REFERENCES POLICY_DATA (POL_ID)
  ON DELETE CASCADE
  ENABLE VALIDATE);


I need to create another table that has link info from the POLICAY_DATA_DETAILS table so I was thinking about creating a POLICY_DATA_LINK table. Id like to create this table with a foreign key(POL_DETAIL_ID) to the details table but was having a problem. Here is what I have so far...

CREATE TABLE POLICY_DATA_LINK
(
  POL_LINK_ID    NUMBER,
  POL_LINK_URL   VARCHAR2(100 BYTE),
  POL_LINK_PATH  VARCHAR2(255 BYTE),
  POL_DETAIL_ID  NUMBER
)
LOGGING
NOCOMPRESS
NOCACHE
NOPARALLEL
MONITORING;


CREATE UNIQUE INDEX POLICY_DATA_LINK_PK ON POLICY_DATA_LINK
(POL_LINK_ID)
LOGGING
NOPARALLEL;


ALTER TABLE POLICY_DATA_LINK ADD (
  CONSTRAINT POLICY_DATA_LINK_PK
  PRIMARY KEY
  (POL_LINK_ID)
  USING INDEX POLICY_DATA_LINK_PK
  ENABLE VALIDATE);

Any help would be appreciated!!! Thanks
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Question by:jknj72
  • 2
2 Comments
 

Accepted Solution

by:
jknj72 earned 0 total points
ID: 39740151
I was able to figure it out...

ALTER TABLE POLICY_DATA_LINK ADD (
  CONSTRAINT POLICY_DATA_LINK_PK
  PRIMARY KEY
  (POL_LINK_ID)
  USING INDEX POLICY_DATA_LINK_PK
  ENABLE VALIDATE);

ALTER TABLE POLICY_DATA_LINK ADD (
  FOREIGN KEY (POL_DETAIL_ID)
  REFERENCES POLICY_DATA_DETAILS (POL_DETAIL_ID)
  ON DELETE CASCADE
  ENABLE VALIDATE);
0
 

Author Closing Comment

by:jknj72
ID: 39740153
I figure it out
0

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