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Database concepts

This section provides you with details about the three types of operation that you can perform on the database.

Database concepts - Read

Genesis supports a number of different read operations. Although the specifics vary between the different interfaces, the underlying principles remain the same. This page explains these principles, without going into specific calls.

Database concepts - Subscribe

Subscribe operations enable code to react to database changes, rather than polling for changes. Code can either listen to changes, or use a combined read/subscribe operation. These mixed read/subscribe operations are useful.