update : 28-06-2017

DBA Script : example_create_primary_foreign_key.sql

-- | FILE : example_create_primary_foreign_key.sql |
-- +----------------------------------------------------------------------------+
-- | |
-- | |
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | DATABASE : Oracle |
-- | FILE : example_create_primary_foreign_key.sql |
-- | CLASS : Examples |
-- | PURPOSE : Example SQL script that creates a Primary / Foreign key |
-- | relationship between the EMP and DEPT tables. It is advisable to|
-- | create a non-unique index on all foreign keys. |
-- | NOTE : As with any code, ensure to test this script in a development |
-- | environment before attempting to run it in production. |
-- +----------------------------------------------------------------------------+
-- +-----------------------------------------------------------------+
-- | ADD PRIMARY KEY |
-- +-----------------------------------------------------------------+
ALTER TABLE dept
ADD CONSTRAINT dept_pk PRIMARY KEY(dept_id)
USING INDEX
TABLESPACE indexes
STORAGE (
INITIAL 64K
NEXT 64K
MINEXTENTS 1
MAXEXTENTS 121
PCTINCREASE 0
)
/
-- +-----------------------------------------------------------------+
-- | ADD FOREIGN KEY |
-- +-----------------------------------------------------------------+
ALTER TABLE emp
ADD CONSTRAINT emp_fk1 FOREIGN KEY (dept_id)
REFERENCES dept(dept_id)
/
-- +-----------------------------------------------------------------+
-- | ADD NON-UNIQUE INDEX FOR THE FOREIGN KEY |
-- +-----------------------------------------------------------------+
CREATE INDEX emp_fk_n1
ON emp(dept_id)
TABLESPACE indexes
STORAGE (
INITIAL 64K
NEXT 64K
MINEXTENTS 1
MAXEXTENTS 121
PCTINCREASE 0
FREELISTS 3
)
/

End Script

Oracle Database Error Messages



Oracle Database High Availability Any organization evaluating a database solution for enterprise data must also evaluate the High Availability (HA) capabilities of the database. Data is one of the most critical business assets of an organization. If this data is not available and/or not protected, companies may stand to lose millions of dollars in business downtime as well as negative publicity. Building a highly available data infrastructure is critical to the success of all organizations in today's fast moving economy.

Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.