PostgreSQL & PostGIS Quiz
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the role of a DBMS in a database system?
It manages spatial data only
It performs arithmetic operations
It stores, retrieves, and manages data
It converts data to binary
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which architecture type involves a middle layer between client and server?
Two-Tier
One-Tier
Three-Tier
Serverless
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which constraint ensures that a column cannot have NULL values?
PRIMARY KEY
UNIQUE
DEFAULT
NOT NULL
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does the \l command do in psql shell?
Lists all tables
Lists all databases
Lists all users
Lists all constraints
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which SQL keyword is used to remove all records but not the structure of a table?
DELETE
DROP
TRUNCATE
REMOVE
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which operator is used to test if a column is NOT equal to a value?
!=
<>
BOTH A and B
=
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which data type is used to store large binary data?
VARCHAR
INT
TEXT
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