SharpCoreDB

High-Performance Encrypted Database for .NET 10
Embedded engine + production gRPC server in one ecosystem

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SharpCoreDB is for .NET teams that want SQLite-like simplicity, enterprise-grade security, and server-scale capabilities without leaving the .NET ecosystem.

Use it when you need:

• Fast embedded storage with AES-256-GCM encryption and ACID guarantees
• A secure network database via gRPC (HTTP/2 + HTTP/3)
• Built-in vector search, advanced analytics, and GraphRAG/graph algorithms A production-focused stack validated by 2,223 tests and backward compatibility

Full documentation: docs/INDEX.md

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Why SharpCoreDB?

• One stack, two deployment models: embedded and server mode
• Performance-first design: SIMD acceleration, memory pooling, optimized query paths
• Security by default: TLS 1.2+, JWT, optional mTLS, RBAC, encrypted single-file storage
• Modern .NET 10-native: C# 14, optional ecosystem packages, production-ready modules

Quick comparison

Capability	SharpCoreDB	LiteDB	SQLite	RavenDB / MongoDB
.NET-native embedded experience	✅ First-class	✅	⚠️ via provider wrappers	❌ network-first
Built-in encrypted single-file DB (AES-256-GCM)	✅	⚠️ limited/variant approaches	❌ (extensions/custom setup)	❌
Built-in gRPC server mode in same ecosystem	✅	❌	❌	⚠️ different server architecture
Vector search + GraphRAG tooling	✅	❌	⚠️ extension-dependent	⚠️ feature varies by product/tier
Advanced analytics + SIMD focus	✅	⚠️ basic querying	⚠️ strong SQL, fewer .NET-specific SIMD paths	⚠️ server-side analytics patterns
Optional Event Sourcing / CQRS packages	✅	❌	❌	⚠️ usually external patterns

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Quick Start (under 30 seconds)

1) Embedded mode

dotnet add package SharpCoreDB --version 1.9.2

using SharpCoreDB;

var db = new Database("app.scdb");
db.ExecuteSQL("CREATE TABLE Users (Id INT, Name TEXT)");
db.ExecuteBatchSQL([
    "INSERT INTO Users VALUES (1, 'Ada')",
    "INSERT INTO Users VALUES (2, 'Linus')"
]);
db.Flush();
db.ForceSave();

2) Server mode (gRPC-first)

dotnet run --project src/SharpCoreDB.Server -c Release

Health endpoint: https://localhost:8443/health
gRPC endpoint: https://localhost:5001

Install client/server packages:

dotnet add package SharpCoreDB.Server --version 1.9.2
dotnet add package SharpCoreDB.Client --version 1.9.2

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v1.9.1 highlights (previous release)

• Entity Framework Core Provider: Full Guid-keyed entity CRUD support with reliable two-query pattern for relationships
• New EF Core Demo: Runnable console app (Examples/SharpCoreDB.EFCoreCrudDemo) demonstrating complete company/vacancy CRUD workflow
• Version standardization to 1.9.1 across all packages, NuGet metadata, and documentation
• EF Core provider fully validated: 22/22 integration tests passing (CRUD, transactions, relationships, Guid entities)
• Build and core test suite confirmed stable for release
• Continued synchronization of optional modules (Event Sourcing, CQRS, Projections, Analytics)
  • no UndefinedDefaultValue leakage in generated SQL
  • no duplicate PRIMARY KEY generation for version table creation
  • SQLite-incompatible DDL now fails fast with clear NotSupportedException in default compatibility mode
• Single-file parser compatibility fixes: quoted identifiers in CREATE TABLE / DROP TABLE / table-level PK paths are covered and validated
• Microsoft.Extensions.Logging.Abstractions updated to 10.0.7 across all packages
• 2,000+ tests passing, zero breaking changes intended, 100% backward compatible

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v1.9.2 release (current)

• Full version synchronization to 1.9.2 across all packages (core, Server, Client, Analytics, VectorSearch, Graph, EF Core provider, Identity, EventSourcing, Projections, CQRS, Functional family, and more), internal project references, PackageReleaseNotes, and test projects.
• Bug fixes and stability improvements:
  • Resolved several bugs and stability issues in SharpCoreDB.Identity (enhanced persistence, user/role management, password handling, and test coverage for concurrency scenarios; core identity surface now at 100% pass rate in key areas).
  • Multiple fixes and enhancements in the SharpCoreDB.EntityFrameworkCore provider (improved Guid-keyed entity relationships, transaction handling, and end-to-end integration reliability).
• Extensive updates and changes: Comprehensive refresh of all documentation (root README, package READMEs/NuGet.README.md files, USAGE guides, script client docs for Python/JS, and hub files like docs/INDEX.md and docs/README.md) with 1.9.2 install instructions, release labels, and notes. Updated test project infrastructure across the board.
• Test infrastructure modernization for security and standards: All test projects updated to latest compliant versions of Microsoft.NET.Test.Sdk (18.6.0+), xunit.v3 (3.2.2+), xunit.runner.visualstudio (3.1.5+), coverlet.collector, and related packages to align with current .NET 10 / C# 14 security best practices and compatibility requirements.
• Test count and quality: 2,223 tests passing (verified and now prominently documented; significant increase in coverage and stability reporting from the prior 2,000+ baseline).
• Changes from 1.9.1 to 1.9.2 (including the above bug resolutions, dependency updates, and documentation overhaul) are detailed in this section and docs/CHANGELOG.md.
• 2,223 tests passing, zero breaking changes, 100% backward compatible.

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Performance snapshot

Recent benchmark improvements after parser/lifecycle refactors:

Benchmark	Before	After	Improvement
Single-File SELECT (Unencrypted)	4.01 ms	1.81 ms	55% faster
Single-File SELECT (Encrypted)	2.74 ms	1.57 ms	43% faster
AppendOnly UPDATE	143.42 ms	70.36 ms	51% faster
Dir Encrypted UPDATE	9.16 ms	7.91 ms	14% faster

Additional SIMD optimization: columnar aggregate paths now use Vector256.LoadUnsafe to reduce per-iteration overhead in AVX2 hot loops.

Full benchmark details: docs/BENCHMARK_RESULTS.md

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Complete feature set

Core database engine (embedded)

• Single-file encrypted database with AES-256-GCM
• SQL support with advanced query optimization
• ACID transactions with WAL
• B-tree and hash indexing
• Full-text search
• SIMD-accelerated operations (including Vector256.LoadUnsafe optimizations)
• Memory pooling and JIT-oriented performance optimizations
• Metadata durability improvements (flush + reopen reliability)

Network server (SharpCoreDB.Server)

• Primary protocol: gRPC over HTTPS (HTTP/2 + HTTP/3)
• Secondary protocols: Binary TCP handler, HTTPS REST API, WebSocket streaming
• Multi-database hosting with system databases
• Security stack: TLS 1.2+, JWT auth, RBAC (Admin/Writer/Reader), optional mTLS
• Connection pooling (1000+ concurrent connections)
• Health checks and Prometheus-compatible metrics
• Graceful shutdown and production deployment support
• Deployment options: Docker/Docker Compose, Windows Service, Linux systemd, macOS launchd

Clients and SDKs

• .NET client library (SharpCoreDB.Client, ADO.NET-style)
• JavaScript/TypeScript SDK (npm)
• Python client (PySharpDB) with partial transport parity in progress

Analytics and query capabilities

• 100+ aggregate functions (COUNT, SUM, AVG, STDDEV, VARIANCE, PERCENTILE, CORRELATION)
• Window functions (ROW_NUMBER, RANK, DENSE_RANK, LAG, LEAD)
• Proven high-throughput analytics performance in benchmark suite

Vector search

• HNSW indexing with SIMD acceleration
• Production-tested with large vector workloads (10M+ vectors)
• Performance-oriented semantic retrieval workflows

Graph and GraphRAG

• Graph traversal: BFS, DFS, bidirectional search
• A* pathfinding improvements
• ROWREF data type support for graph edges
• GRAPH_TRAVERSE() SQL function integration
• Advanced graph analytics via SharpCoreDB.Graph.Advanced:
  • Community detection (Louvain, Label Propagation, Connected Components)
  • Centrality metrics (Degree, Betweenness, Closeness, Eigenvector, Clustering)
  • Subgraph analysis (K-core, clique, triangle detection)
  • Graph-aware semantic ranking and profiling helpers

Distributed and sync features

• Multi-master replication with vector clocks
• Distributed transactions with 2PC protocol
• Dotmim.Sync integration for cloud/data sync scenarios

Event Sourcing, Projections, and CQRS (optional packages)

• SharpCoreDB.EventSourcing:
  • Append-only per-stream event storage
  • Global ordered event feed
  • In-memory and persistent event store implementations
  • Snapshot persistence and snapshot-aware aggregate loading
  • Optional snapshot policy helpers
• SharpCoreDB.Projections:
  • Projection registration and runner scaffolding
  • Checkpoint persistence
  • OpenTelemetry-ready projection metrics
• SharpCoreDB.CQRS:
  • Command/handler abstractions
  • Aggregate root support
  • Outbox primitives with retry/dead-letter workflow support

Quality and compatibility

• 2,223 tests passing
• 100% backward compatible across the v1.9.2 release line
• Zero breaking changes intended from v1.5.0 to v1.9.2

For deep technical details (audit reports, threat model, runbooks, compatibility matrices), use the docs hub: docs/INDEX.md.

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Available NuGet packages (v1.9.2)

# Core
dotnet add package SharpCoreDB --version 1.9.2

# Server/client
dotnet add package SharpCoreDB.Server --version 1.9.2
dotnet add package SharpCoreDB.Client --version 1.9.2

# Engines and extensions
dotnet add package SharpCoreDB.Analytics --version 1.9.2
dotnet add package SharpCoreDB.VectorSearch --version 1.9.2
dotnet add package SharpCoreDB.Graph --version 1.9.2
dotnet add package SharpCoreDB.Graph.Advanced --version 1.9.2
dotnet add package SharpCoreDB.Distributed --version 1.9.2
dotnet add package SharpCoreDB.Provider.Sync --version 1.9.2
dotnet add package SharpCoreDB.EntityFrameworkCore --version 1.9.2
dotnet add package SharpCoreDB.Extensions --version 1.9.2

# Optional architecture packages
dotnet add package SharpCoreDB.EventSourcing --version 1.9.2
dotnet add package SharpCoreDB.Projections --version 1.9.2
dotnet add package SharpCoreDB.CQRS --version 1.9.2

# Optional functional adapters
dotnet add package SharpCoreDB.Functional --version 1.9.2
dotnet add package SharpCoreDB.Functional.Dapper --version 1.9.2
dotnet add package SharpCoreDB.Functional.EntityFrameworkCore --version 1.9.2

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What’s new in v1.9.1 (prior release)

• Entity Framework Core Provider: Full Guid-keyed entity support with stable CRUD (insert/update/select/delete) and reliable two-query relationship materialization pattern for Company/Vacancy style scenarios
• New runnable EF Core demo: Examples/SharpCoreDB.EFCoreCrudDemo – complete console application demonstrating end-to-end CRUD on the companies/vacancies seed dataset using the recommended repository pattern
• Complete v1.9.1 release alignment: Every project <Version>, every internal PackageReference, and every PackageReleaseNotes updated to 1.9.1 across 25+ packages so NuGet pack/publish produces correct artifacts
• Documentation standardization: Root README.md + all 25 component README.md files updated to current release with correct package examples and highlights
• EF Core integration tests: 22/22 passing (including full end-to-end seed CRUD with Guid primary keys and relationships)
• All builds and test packages validated (SharpCoreDB.1.9.1.nupkg successfully produced)
• Zero breaking changes – 100% backward compatible with previous 1.9.x line

For changes in the current 1.9.2 release (version bump prep, docs sync, test count 2,223, release readiness), see the v1.9.2 section above and docs/CHANGELOG.md.

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Important documentation links

• Documentation hub: docs/INDEX.md
• Project docs index: docs/README.md
• Feature matrix: docs/FEATURE_MATRIX_v1.7.2.md
• Server docs: docs/server/README.md
• Server quick start: docs/server/QUICKSTART.md
• GraphRAG docs: docs/graphrag/00_START_HERE.md
• SQL dialect extensions: docs/sql/SQL_DIALECT_EXTENSIONS_v1.7.2.md
• Migration docs: docs/migration/README.md
• Single-file SQL support and limits: docs/storage/SINGLE_FILE_SQL_LIMITATIONS.md
• EF Core provider docs: src/SharpCoreDB.EntityFrameworkCore/README.md, src/SharpCoreDB.EntityFrameworkCore/USAGE.md
• Optional architecture packages: src/SharpCoreDB.EventSourcing/README.md, src/SharpCoreDB.Projections/README.md, src/SharpCoreDB.CQRS/README.md
• Package publish/readme guidance: nuget/README.md, NuGet.README.md

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Contributing

Contributions are welcome. Please open an issue for ideas, bug reports, and feature proposals, or submit a PR directly.

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License

This project is licensed under the MIT License. See LICENSE for details.

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