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abdelghani
abdelghani
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34 questions
1
2
Hard
2 votes
167 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
Medium
1 vote
326 runs
1 comment
Explain the purpose of the ngOnInit() lifecycle hook in Angular.
Web developer
angular
lifecycle
at Sep 6, 2023
Easy
1 vote
180 runs
0 comment
Which command in PostgreSQL is used to delete a database?
Data Scientist
at Apr 19, 2024
Medium
1 vote
178 runs
0 comment
What is the command to back up a database in PostgreSQL?
Data Scientist
at Apr 19, 2024
Easy
1 vote
173 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
159 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
145 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
26 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
169 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
150 runs
0 comment
What is the default port number for PostgreSQL database server?
Data Scientist
at Apr 19, 2024
Medium
0 vote
150 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
148 runs
0 comment
Grant all privileges on a database to a user in PostgreSQL
Data Scientist
at Apr 19, 2024
Easy
0 vote
146 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
146 runs
0 comment
How to create a recursive query in PostgreSQL?
Data Scientist
at Apr 19, 2024
Hard
0 vote
145 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
144 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
142 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
139 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
Easy
0 vote
136 runs
0 comment
What data type is used specifically for storing boolean values in PostgreSQL?
Data Scientist
at Apr 19, 2024
Hard
0 vote
125 runs
0 comment
Which PostgreSQL feature is used to handle exceptions and control the transaction flow?
Data Scientist
at Apr 19, 2024
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