Email validations in trigger.

Question

hi,
i want to do validations for email in trigger.
CREATE OR REPLACE TRIGGER Mand_Triggers_PHONEEMAIL
BEFORE INSERT
ON PHONEEMAIL_MIG
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
BEGIN
IF :new.Email IS NULL THEN
Raise_application_error(-20101, Email is mandatory');
END IF;
END;
this is trigger. now i want to add more validations for email address.Actully this emailid will come from data file so before inserting this value i want trigger to throw error if this email id (email address) do not follow syntax please help in doing this.
Message was edited by:
user612770

Answer 1

SQL> create table t (
  2  email_add VARCHAR2(30));
Table created.
SQL> INSERT INTO t VALUES ('[email protected]');
1 row created.
SQL> INSERT INTO t VALUES 'this is a test');
INSERT INTO t VALUES ('this is a test')
1 row created.
SQL> select * from t;
EMAIL_ADD
[email protected]
this is a test
select email_add
from t
where REGEXP_LIKE (email_add, '^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$');I'd suggest you return to defining what it is you think this is supposed to accomplish.
Demos of REGEXP_LIKE can be found here:
http://www.psoug.org/reference/regexp.html
Because this is definitely not a working solution.