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Group 2@2x
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abdelghani
abdelghani
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34 questions
Medium
2 votes
362 runs
1 comment
Explain the purpose of the ngOnInit() lifecycle hook in Angular.
Web developer
angular
lifecycle
at Sep 6, 2023
Easy
2 votes
206 runs
0 comment
Which command in PostgreSQL is used to delete a database?
Data Scientist
at Apr 19, 2024
Medium
2 votes
204 runs
0 comment
What is the command to back up a database in PostgreSQL?
Data Scientist
at Apr 19, 2024
Hard
2 votes
193 runs
0 comment
What is the mechanism in PostgreSQL that ensures the integrity of transactions and supports concurrent processing?
Data Scientist
at Apr 19, 2024
Easy
2 votes
132 runs
0 comment
What is the main purpose of the LSTM (Long Short-Term Memory) model in machine learning?
Data Scientist
at Mar 26, 2024
Easy
1 vote
199 runs
0 comment
Which PostgreSQL command changes the definition of a database object, like a table?
Data Scientist
at Apr 19, 2024
Hard
1 vote
183 runs
0 comment
What type of index is primarily used for full-text search in PostgreSQL?
Data Scientist
at Apr 19, 2024
Easy
1 vote
169 runs
0 comment
What PostgreSQL feature allows you to run functions on the database server-side?
Data Scientist
at Apr 19, 2024
Draft test - Medium
1 vote
30 runs
0 comment
What Vue.js directive is used to bind data to an HTML element attribute in a template?
Web developer
at Apr 19, 2024
Easy
0 vote
196 runs
0 comment
What does the ACID acronym stand for in the context of PostgreSQL transactions?
Data Scientist
at Apr 19, 2024
Easy
0 vote
174 runs
0 comment
What is the default port number for PostgreSQL database server?
Data Scientist
at Apr 19, 2024
Medium
0 vote
174 runs
0 comment
Which clause is used in PostgreSQL to filter grouped records that do not meet a certain condition?
Data Scientist
at Apr 19, 2024
Easy
0 vote
172 runs
0 comment
Grant all privileges on a database to a user in PostgreSQL
Data Scientist
at Apr 19, 2024
Easy
0 vote
170 runs
0 comment
Which data type in PostgreSQL is best suited for storing large blocks of text?
Data Scientist
at Apr 19, 2024
Medium
0 vote
170 runs
0 comment
How to create a recursive query in PostgreSQL?
Data Scientist
at Apr 19, 2024
Hard
0 vote
169 runs
0 comment
What data type is used to store geographical objects for Geographic Information Systems (GIS) in PostgreSQL?
Data Scientist
at Apr 19, 2024
Easy
0 vote
168 runs
0 comment
Which command is used to remove all rows from a table without deleting the table itself in PostgreSQL?
Data Scientist
at Apr 19, 2024
Medium
0 vote
166 runs
0 comment
Add a unique constraint on the email column while creating the users table in PostgreSQL.
Data Scientist
at Apr 19, 2024
Easy
0 vote
163 runs
0 comment
What is the term for the operation in PostgreSQL that combines rows from two or more tables based on a related column between them?
Data Scientist
at Apr 19, 2024
1
2
Easy
0 vote
159 runs
0 comment
What data type is used specifically for storing boolean values in PostgreSQL?
Data Scientist
at Apr 19, 2024
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