What is a common application of hash tables in databases?
Practice Questions
Q1
What is a common application of hash tables in databases?
Storing data in a sorted manner
Fast data retrieval
Data compression
Data encryption
Questions & Step-by-Step Solutions
What is a common application of hash tables in databases?
Step 1: Understand what a hash table is. A hash table is a data structure that stores data in a way that allows for quick access.
Step 2: Learn about time complexity. Time complexity is a way to describe how fast an operation is. O(1) means the operation takes the same amount of time, no matter how much data there is.
Step 3: Know that databases need to retrieve data quickly. When you search for information in a database, you want it to be fast.
Step 4: Realize that hash tables help with fast data retrieval. They can find data in constant time, O(1), on average.
Step 5: Understand that this makes hash tables great for indexing in databases. Indexing is like creating a quick reference to find data easily.
