Application Software Engineer

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Application Software Engineer Interview Questions and Answers

Updated 19 Dec 2020

Q1. Difference between primary key and unique key

Ans.

Primary key uniquely identifies a record in a table, while unique key ensures that all values in a column are distinct.

  • Primary key can't have null values, while unique key can have one null value.

  • A table can have only one primary key, but multiple unique keys.

  • Primary key is used as a foreign key in other tables, while unique key is not.

  • Example: Employee ID can be a primary key, while email address can be a unique key.

Q2. what is store procedure

Ans.

Stored procedure is a precompiled SQL code that can be reused and executed multiple times.

  • Stored procedures are used to improve performance and security of database operations.

  • They can accept input parameters and return output parameters or result sets.

  • Stored procedures can be called from within other SQL statements or from application code.

  • Examples of stored procedures include inserting data into a table, updating records, and retrieving data based on certain criteria.

Application Software Engineer Jobs

Application Software Engineer 3-6 years
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Bangalore / Bengaluru
Application Software Engineer 2-5 years
RAAD Systems Private Limited.
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Application Software Engineer 2-5 years
Astrogate
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Bangalore / Bengaluru
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