What is hashing in database design?

What is hashing in database design?

Hashing in database design is a technique used to convert data into a fixed-size string of characters, which is typically a hash code. This helps in efficient data retrieval and storage.

Why is hashing important for databases?

Hashing is important because it allows for quick data access and retrieval, reduces the chances of data collisions, and optimizes storage.

Can you explain how hash functions work?

Hash functions take an input (or 'message') and return a fixed-size string of bytes. The output is unique to each unique input, making it easy to identify and retrieve data.

What are some common hash functions used in databases?

Common hash functions include MD5, SHA-1, and SHA-256. Each has its own strengths and weaknesses in terms of speed and security.