docs: create introduction

Signed-off-by: Otavio Santana <[email protected]>

docs/nosql-introduction/introduction.md

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 # Introduction
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+NoSQL, or "Not Only SQL," represents a new database management approach crucial in today's data-driven landscape. It's vital for several reasons:
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+1. **Big Data**: NoSQL databases handle vast data volumes, a necessity as data generation skyrockets.
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+2. **Scalability**: They scale horizontally, which is crucial for high-traffic websites and enterprises.
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+3. **Flexibility**: NoSQL adapts to changing data structures, ideal for agile development.
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+4. **Real-time Processing**: It excels at real-time analytics, monitoring, and event-driven applications.
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+5. **Data Variety**: NoSQL handles diverse data types, which is vital for modern applications.
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+Java's mature ecosystem and enterprise capabilities make it a perfect match for NoSQL:
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+1. **Integration**: Java SDKs and libraries simplify NoSQL database integration.
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+2. **Scalability**: Java aligns well with NoSQL databases' scalability.
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+3. **Data Transformation**: Java's libraries process data before storage, handy for complex structures.
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+4. **Middleware**: Jakarta EE and Spring offer NoSQL support for enterprise applications.
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+5. **Security**: Java ensures data security and transaction management.
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+6. **Enterprise Integration**: Java's versatility connects with various data sources, including NoSQL, in enterprise applications.