CARE Analytics and Advisory Interview Questions, Process, and Tips

An interface class in software development is a blueprint for a class that defines a set of methods that a class must implement.

• Interface classes contain abstract methods that must be implemented by any class that implements the interface.

• Interfaces allow for multiple inheritance in programming languages that do not support it.

• Interfaces are used to define a contract for classes to adhere to, ensuring consistency and i...read more

Global exceptions can be handled by using try-catch blocks in the code.

• Use try-catch blocks to catch exceptions at a global level

• Implement a global exception handler to log or display the exception details

• Consider using frameworks like Spring Boot for handling global exceptions

I will analyze the query execution plan, optimize the query, check for indexing, and consider partitioning.

• Analyze the query execution plan to identify any bottlenecks or inefficiencies.

• Optimize the query by rewriting it, adding indexes, or restructuring the data.

• Check for proper indexing on the tables involved in the query.

• Consider partitioning large tables to improve query performance.

• Use tools like SQL Profiler or D...read more

Indexes in databases help improve query performance by allowing faster data retrieval.

• Types of indexes include B-tree, hash, bitmap, and full-text indexes.

• B-tree indexes are commonly used for range queries.

• Hash indexes are useful for equality queries.

• Bitmap indexes are efficient for low cardinality columns.

• Full-text indexes are used for searching text data.