I’m trying to update the length of a varchar column from 255 characters to 500 without losing the contents. I’ve dropped and re-created tables before but I’ve never been exposed to the alter statement which is what I believe I need to use to do this. I found the documentation here: ALTER TAB…
Tag: varchar
Change PostgreSQL columns used in views
I would like PostegreSQL to relax a bit. Every time I want to change a column used in a view, it seems I have to drop the view, change the field and then recreate the view. Can I waive the extra protection and just tell PostgreSQL to let me change the field and then figure out the adjustment to the
Difference between BYTE and CHAR in column datatypes
In Oracle, what is the difference between : and Answer Let us assume the database character set is UTF-8, which is the recommended setting in recent versions of Oracle. In this case, some characters take more than 1 byte to store in the database. If you define the field as VARCHAR2(11 BYTE), Oracle can use up…