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Nippon Data Systems
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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.
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 rec...
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I appeared for an interview before Nov 2020.
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I am proficient in Java, Python, and C++. I have 2 years of experience in software development. I have excellent communication skills for client interaction.
Proficient in Java, Python, and C++
2 years of software development experience
Excellent communication skills for client interaction
I applied via Naukri.com and was interviewed before Oct 2020. There were 5 interview rounds.
I appeared for an interview in Sep 2020.
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