Difference between read commit and repeatable read?

Question

I think the above isolation levels are so alike. Could someone please describe with some nice examples what the main difference is ?

Answer 1

The main difference between Read Committed and Repeatable Read is the level of isolation they provide. Read Committed ensures that the data read is committed and visible to other transactions, but it doesn't ensure that the data read will remain the same throughout the transaction. Repeatable Read ensures that the data read will remain the same throughout the transaction, but it doesn't ensure that the data read is committed and visible to other transactions.