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Should I use a document database?

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Oren Eini

The document discusses the considerations for using a document database, recounting a historical context of database development. It highlights benefits such as schema flexibility, support for JSON, and ease of scaling and querying with RavenDB. The author concludes that the decision to use a document database ultimately depends on specific project needs and opportunities.

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Should I use a document database? Elemar Júnior @elemarjr elemarjr@ravendb.net elemarjr.com
Hello, I am Elemar Jr
I am Microsoft MVP
I love to learn new things
I love compilers
I love to write compilers
I love Roslyn
I love Computer Graphics
Should I use a document database?
Should I use a document database?
Should I use a document database?
But ... again, Should I use a Document Database?
Let me tell you a story...
A long time ago (2002) in a galaxy far far away (Caxias do Sul, RS – Brazil) ...
A brave team started to write a new version, from the scratch, of a popular Brazilian software
Should I use a document database?
Should I use a document database?
How to store furniture information?
4 .mdb Why not?
.mdb
Schema?
Should I use a document database?
Some common properties
... but a lot of specific properties
We could use one table with nullable fields (like Sharepoint AllUserData Table) Sounds Strange!Right?
We could use some complex relational database structure Complex!Better?
.mdb
<xml />2002, remember?
XML is Flexible (no Schema) Perfect!
XML is almost Human-readable Good!
XML is “DDD-Friendly”
Documents XML is are “DDD-Friendly” Entity Value-Type XML is “DDD-Friendly”
Domain-Driven Design by Eric Evans (2004) 2002
.NET history
DDD means (2002) “Document-Driven Design” Entity Value-Type
DDD means (2002) “Document-Driven Design”
JSON would be better Primitive types support
Should I use a document database?
Should I use a document database?
Documents Collections
reference flexible data types
Quick access using an Index 0 1 2 3 4
Easy Sharding 0 1 2 3 4
Easy Hashing 0 1 2 3 4 #MD5 #MD5
Easy Caching 0 1 2 3 4 #MD5 #MD5
Easy Caching Azure BLOB Desktop Desktop Desktop
NoSQL is not new ...
NoSQL is NoNEW ...
Coming back to the original question...
again, Should I use a Document Database?
It depends...
Do you need a flexible schema?
BETTER QUESTION
Is it an opportunity?
What about event sourcing?
What about CQRS?
Do you need to scale?
What about sharding?
What about caching?
What about replication?
Today, we have RavenDB!
RavenDB supports transactions!
Querying is easy with RavenDB
again, Should I use a Document Database?
Why not!?
Thank you!
Should I use a document database? Elemar Júnior @elemarjr elemarjr@ravendb.net elemarjr.com

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Should I use a document database?