Which two statements are true regarding constraints?

Which two statements are true regarding constraints? (Choose two.)

Which two statements are true regarding constraints? (Choose two.)

A.
A foreign key cannot contain NULL values.

B.
The column with a UNIQUE constraint can store NULLS .

C.
A constraint is enforced only for an INSERT operation on a table.

D.
You can have more than one column in a table as part of a primary key.



Leave a Reply 18

Your email address will not be published. Required fields are marked *


singh

singh

BD is correct

Google

Google

We came across a cool internet site that you just may take pleasure in. Take a look should you want.

woodcraft

woodcraft

here are some hyperlinks to web pages that we link to because we feel they may be worth visiting

Play games online

Play games online

please visit the web sites we follow, like this 1, as it represents our picks through the web

Google

Google

Usually posts some quite fascinating stuff like this. If youre new to this site.

social apps

social apps

below you will locate the link to some web-sites that we assume you’ll want to visit

hawaii volcano lava rock

hawaii volcano lava rock

just beneath, are a lot of completely not associated web sites to ours, however, they may be certainly worth going over

computer repair omaha

computer repair omaha

please stop by the web pages we follow, like this one particular, as it represents our picks from the web

SEO services in Lahore

SEO services in Lahore

please stop by the web-sites we stick to, such as this one, because it represents our picks through the web

Textildruck

Textildruck

although web-sites we backlink to beneath are considerably not connected to ours, we feel they’re actually really worth a go through, so have a look

personalised fans

personalised fans

the time to read or check out the material or websites we’ve linked to beneath the

aee.ge

aee.ge

the time to study or pay a visit to the subject material or web sites we have linked to below the

my review here

my review here

although internet websites we backlink to beneath are considerably not associated to ours, we feel they are basically worth a go by, so possess a look

vacation

vacation

we came across a cool web-site which you might appreciate. Take a appear for those who want

Computer Repairs

Computer Repairs

Here is an excellent Blog You may Discover Fascinating that we Encourage You

Best Companies

Best Companies

please stop by the internet sites we stick to, including this one particular, because it represents our picks in the web