Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


Interview questions

What is a Primary Key: primary keys must contain unique values/A field that uniquely identifies a record in a table
Foreign keys foreign keys may have duplicates
What is an index summary table which lets you quickly look up the contents of any record in a table. Think of how you use an index to a book: as a quick jumping off point to finding full information about a subject.
normalisation The process of structuring data to minimise duplication and inconsistencies.
Count duplicates select distinct city, count(city) from A2Account group by city
what is a group by statement "Group By X" means "put all those with the same value for X in the one group. "Group By X, Y" means "put all those with the same values for both X and Y in the one group."
group by having? The Having is simply equivalent to a WHERE clause after the group by has executed and before the select part of the query is computed.
how much space in sybase • sp_hds • sp_helpdb • sp_spaceused
Created by: topbeagle