Author: Raghu navaikulam
Subject: Converting NULL column into NOT NULL using ALTER statement
Posted: Sat Aug 06, 2016 3:45 pm (GMT 5.5)
Hi all,
Is there any provision to convert a NULL column into a NOT NULL column which is having data in it?
I tried many options, but went in vain.
ALTER TABLE table1 ALTER COLUMN t1 SET DATA TYPE CHAR(6) NOT NULL;
ALTER TABLE table1 ALTER COLUMN t1 SET NOT NULL;
All are went in vain.
Any help or a clue is appreciated.
Thanks in advance
Raghu
Subject: Converting NULL column into NOT NULL using ALTER statement
Posted: Sat Aug 06, 2016 3:45 pm (GMT 5.5)
Hi all,
Is there any provision to convert a NULL column into a NOT NULL column which is having data in it?
I tried many options, but went in vain.
ALTER TABLE table1 ALTER COLUMN t1 SET DATA TYPE CHAR(6) NOT NULL;
ALTER TABLE table1 ALTER COLUMN t1 SET NOT NULL;
All are went in vain.
Any help or a clue is appreciated.
Thanks in advance
Raghu