Try SQL

Try out SQL using a relational database.

Wine database The classic Northwind database A delivery company database

Try MongoDB

Try out the MongoDB NoSQL database.

Wine database Restaurants database

Try Cypher

Try out Neo4j's Cypher language to query social graphs.

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Tree Structure Visualizations

Try out different tree structure visualizations.

Binary search trees B-trees B-plus-trees

Try HBase

Try out HBase commands starting from an empty database.

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