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Primary key uniquely identifies a record, while foreign key refers to a field in another table.
Primary key is used to enforce data integrity and ensure uniqueness of records.
Foreign key is used to establish a relationship between two tables.
Primary key cannot be null, while foreign key can be null.
Primary key is always unique, while foreign key may have duplicate values.
Example: Customer table has a primary key of Cust...
I applied via Instahyre and was interviewed in Oct 2019. There were 3 interview rounds.
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posted on 14 May 2022
I applied via Naukri.com and was interviewed before May 2021. There was 1 interview round.
I applied via Walk-in and was interviewed before Apr 2020. There were 5 interview rounds.
I applied via Naukri.com and was interviewed before Apr 2020. There were 5 interview rounds.
I applied via Campus Placement and was interviewed before Jan 2020. There were 4 interview rounds.
I applied via Walk-in and was interviewed before May 2020. There was 1 interview round.
I applied via Campus Placement and was interviewed before Feb 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Jul 2020. There was 1 interview round.
Java is platform independent due to its bytecode and JVM.
Java code is compiled into bytecode which is platform-independent.
JVM (Java Virtual Machine) interprets the bytecode and executes it on any platform.
JVM acts as an abstraction layer between the Java code and the underlying hardware.
This allows Java programs to run on any platform that has a JVM installed.
For example, a Java program written on a Windows machine ca...
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