INTERVIEW QUESTIONS

Infosys interview questions.
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Showing 18 Infosys practice prompts

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SQL & DBMS

What is the difference between SQL and PL/SQL?

Asked for Systems Engineer / Specialist Programmer / DSE (New Grad), Software Developer, Fresher.

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SQL & DBMS

What is a primary key, and how does it differ from a unique key?

Asked for Systems Engineer / Specialist Programmer / DSE (New Grad), Software Developer, Fresher.

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SQL & DBMS

What is a foreign key, and why is referential integrity important?

Asked for Systems Engineer / Specialist Programmer / DSE (New Grad), Software Developer, Fresher.

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SQL & DBMS

Explain the different types of joins: INNER, LEFT, RIGHT, and FULL OUTER.

Asked for Systems Engineer / Specialist Programmer / DSE (New Grad), Software Developer, Fresher.

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SQL & DBMS

What is database normalization, and what problem does it solve?

Asked for Systems Engineer / Specialist Programmer / DSE (New Grad), Software Developer, Fresher.

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