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Databases

Posted by Adriano De Oliveira
Adriano De Oliveira
5,653 Points

We're back on the smartphone, but our phone_book is a mess. There's a phone_book table but there's missing information i

I would like some help here!!!

Adriano De Oliveira
Adriano De Oliveira
5,653 Points

Select first_name AS "First Name", last_name AS "Last Name",phone AS"Phone number"FROM phone_book; Is not passing !!!!!!!!!!!!!!!!!!!!!!

Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

Hi Adriano,

Could you link us to the full question and code challenge please? We're a little stuck without it as I'm not sure which fiels or fields the code challenge is asking for! Thanks :)

Adriano De Oliveira
Adriano De Oliveira
5,653 Points

bummer! you forgot to select all columns !

Adriano De Oliveira
Adriano De Oliveira
5,653 Points

We're back on the smartphone, but our phone_book is a mess. There's a phone_book table but there's missing information in a couple of the columns. The phone_book has the following columns id, first_name, last_name and phone. Find all contacts in the phone_book where the phone number is missing so we can go and ask them for their number.

2 Answers

Chris Craigman
Chris Craigman
13,659 Points
Chris Craigman
Chris Craigman
13,659 Points

Here's the answer

SELECT * FROM phone_book WHERE phone IS NULL;

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,253 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

Try using the universal selector instead to retrieve all the columns.

You may not even need to alias all the columns

SELECT * FROM phone_book;
Adriano De Oliveira
Adriano De Oliveira
5,653 Points

how to link to full question and code challenge? it is saying I forgot to select all columns.

Adriano De Oliveira
Adriano De Oliveira
5,653 Points

I don't know if this question is wrong, because I tried everything!