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 Which of the following SQL constraints ensures that a colum…

 Which of the following SQL constraints ensures that a column’s values are always unique and cannot be NULL?

Published March 9, 2025
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The LIKE operator is case-sensitive in MySQL by default.

The LIKE operator is case-sensitive in MySQL by default.

Published March 9, 2025
Categorized as Uncategorized

Which operator is used in SQL to match string patterns?

Which operator is used in SQL to match string patterns?

Published March 9, 2025
Categorized as Uncategorized

In an Enhanced Entity-Relationship (EER) model, what best de…

In an Enhanced Entity-Relationship (EER) model, what best describes a Union Type (Category)?

Published March 9, 2025
Categorized as Uncategorized

Which type of attribute cannot be divided further?

Which type of attribute cannot be divided further?

Published March 9, 2025
Categorized as Uncategorized

What will happen if the following SQL command is executed, i…

What will happen if the following SQL command is executed, if the age column has a CHECK constraint enforcing positive values? INSERT INTO Users (username, age, country_code) VALUES (‘alice756’, -1 , ‘US’);

Published March 9, 2025
Categorized as Uncategorized

What is the primary purpose of the Enhanced ER (EER) model?

What is the primary purpose of the Enhanced ER (EER) model?

Published March 9, 2025
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What does specialization in an EER model represent?

What does specialization in an EER model represent?

Published March 9, 2025
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In the context of SQL, what is the purpose of a schema?

In the context of SQL, what is the purpose of a schema?

Published March 9, 2025
Categorized as Uncategorized

What is the role of the primary key in a relational database…

What is the role of the primary key in a relational database?

Published March 9, 2025
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