
BEW - Databases
Authored by Re:Coded Org
Computers
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7 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
SQL is a type of databases that tracks records using tables
True
False
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
In SQL, we can order the results using the ____ directive keyword.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
NoSQL means
We hate SQL and we say NO
Non-SQL
Not only SQL
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
When we `LEFT JOIN` 2 tables in SQL on a common value, the results are
All the rows in both tables that match the condition
Some rows of the right table and all rows on the left table
Only the rows that match in both tables
All rows of the right table and only matching rows of the left table
5.
OPEN ENDED QUESTION
2 mins • Ungraded
In MongoDB, what is the difference between `find` and `findOne`?
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6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
In MongoDB, a document contains a collection, and the collection contains fields (attributes)
True
False
It's the opposite
7.
OPEN ENDED QUESTION
2 mins • Ungraded
Why would each document have an _id?
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