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Structured Query Language
SQL stands for Structured Query Language
It is a standard language for accessing and manipulating databases
Commonly used for querying, updating, and managing relational databases
Examples include SELECT, INSERT, UPDATE, DELETE statements
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I applied via Campus Placement
A chemical engineer can help Citi by providing expertise in process optimization, risk management, and sustainability.
Optimizing Citi's manufacturing processes to reduce costs and increase efficiency
Developing risk management strategies to ensure compliance with environmental regulations
Implementing sustainable practices to reduce Citi's environmental impact
Providing technical expertise in chemical reactions and materi...
posted on 10 May 2015
Multi tasking, multi processing, and multi programming are different approaches to managing tasks in an operating system.
Multi tasking allows multiple tasks to run concurrently on a single processor.
Multi processing involves multiple processors running tasks simultaneously.
Multi programming allows multiple programs to be loaded into memory and executed concurrently.
Examples of multi tasking operating systems include Wi...
Memory allocation refers to the process of assigning memory to programs during runtime.
Stack allocation is done automatically and is limited in size.
Heap allocation is done manually and is larger in size.
Stack memory is used for local variables and function calls.
Heap memory is used for dynamic memory allocation.
Memory leaks can occur if heap memory is not properly managed.
Use a shared variable and synchronization mechanisms to ensure natural order printing of numbers.
Create two threads, one for printing even numbers and the other for printing odd numbers.
Use a shared variable to keep track of the current number to be printed.
Implement synchronization mechanisms like locks or semaphores to ensure only one thread can access the shared variable at a time.
Each thread should check if it is i...
Printing a matrix in spiral order
Start from the first element and print it
Move in a spiral order towards the center of the matrix
Repeat until all elements are printed
Thread class and Runnable Interface are used for multithreading in Java.
Thread class is a predefined class in Java that provides methods to create and control threads.
Runnable interface is used to define a task that can be executed by a thread.
Thread class implements Runnable interface.
Thread class provides more control over threads than Runnable interface.
Example: Thread t = new Thread(new MyRunnable()); t.start();
Exa...
Linked List is a dynamic data structure while ArrayList is a static data structure.
Linked List is best for frequent insertion and deletion operations.
ArrayList is best for frequent access operations.
Linked List uses more memory than ArrayList.
ArrayList is faster than Linked List for accessing elements.
Use Linked List when you need to frequently add or remove elements from the list.
Use ArrayList when you need to frequen...
I am not interested in a career in investment banking.
I am more interested in a career in software development
I enjoy problem-solving and creating innovative solutions through coding
Investment banking does not align with my passion and skill set
I have chosen to apply to J.P. Morgan because of their reputation, global presence, and opportunities for growth.
J.P. Morgan has a strong reputation in the financial industry.
They have a global presence with offices in multiple countries.
The company offers various opportunities for career growth and development.
J.P. Morgan is known for its innovative technology solutions in the financial sector.
I am impressed by their ...
Yes, I have made a mistake in my previous project.
I underestimated the complexity of a task and ended up missing the deadline.
I failed to properly test a feature, resulting in a bug that affected user experience.
I accidentally deleted an important file without having a backup.
I misunderstood a requirement and implemented a feature incorrectly.
I applied via LinkedIn and was interviewed before Aug 2020. There were 4 interview rounds.
I applied via Company Website and was interviewed in Jul 2020. There were 4 interview rounds.
I applied via Naukri.com and was interviewed in Sep 2020. There were 3 interview rounds.
Log files are used to record events and actions in a system or application.
Log files can be used for debugging and troubleshooting.
They can also be used for auditing and compliance purposes.
Log files can help identify security breaches or unauthorized access.
They can be used to monitor system performance and identify bottlenecks.
Log files can be analyzed to gain insights into user behavior and usage patterns.
Debugging is the process of identifying and fixing errors in a program or project.
Debugging involves analyzing code and identifying errors
Tools like debuggers and logging can aid in the process
Common errors include syntax errors, logic errors, and runtime errors
Debugging should be done systematically and thoroughly
Testing and retesting is important to ensure all errors are fixed
Static variables and functions are associated with the class rather than instances, affecting memory and access patterns.
Static variables retain their value between function calls. Example: static int count = 0; count++;
Static functions can only access static variables and cannot be called on instances. Example: static void display() { /*...*/ }
Static members are shared across all instances of a class, saving memory. E...
Accessibility of variable or function
Variables and functions should be accessible to the parts of the code that need them
Accessibility can be controlled using access modifiers like public, private, and protected
Accessibility can also be affected by the scope of the variable or function
SQL case sensitivity determines how string comparisons are made in queries, affecting data retrieval and manipulation.
SQL Server is case-insensitive by default, but can be configured to be case-sensitive using collation settings.
Example: In a case-sensitive database, 'abc' and 'ABC' are considered different values.
MySQL's default collation is case-insensitive, but can be made case-sensitive using 'BINARY' keyword.
Examp...
posted on 16 Dec 2021
I applied via Recruitment Consultant and was interviewed in Jun 2021. There were 4 interview rounds.
posted on 7 Jun 2021
I applied via Company Website and was interviewed in May 2021. There were 3 interview rounds.
based on 1 interview experience
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