99 [ ![ .NET] ( https://img.shields.io/badge/.NET-10.0-blue.svg )] ( https://dotnet.microsoft.com/download )
1010 [ ![ NuGet] ( https://img.shields.io/badge/NuGet-1.0.0-blue.svg )] ( https://www.nuget.org/packages/SharpCoreDB )
1111 [ ![ Build] ( https://img.shields.io/badge/Build-✅_Passing-brightgreen.svg )] ( https://github.com/MPCoreDeveloper/SharpCoreDB )
12- [ ![ SCDB] ( https://img.shields.io/badge/SCDB-100%25_Complete-brightgreen .svg )] ( docs/scdb/PHASE6_COMPLETE .md )
12+ [ ![ SCDB] ( https://img.shields.io/badge/SCDB-Phase%201_95%25-yellow .svg )] ( docs/PROJECT_STATUS_UNIFIED .md )
1313 [ ![ Sponsor] ( https://img.shields.io/badge/Sponsor-❤️-ea4aaa?logo=githubsponsors&logoColor=white )] ( https://github.com/sponsors/mpcoredeveloper )
1414</div >
1515
1616---
1717
18- ## 🎉 ** SCDB 100% COMPLETE & PRODUCTION READY! ** 🎉
18+ ## 📌 ** Current Status (January 2026) **
1919
20- All 6 phases of SharpCoreDB delivered (12 weeks estimated, 20 hours actual - ** 96% efficiency** ):
20+ - ✅ ** Performance Optimization Track** complete (7,765x faster than baseline)
21+ - ✅ ** INSERT Optimization Track** complete (1.21x faster than LiteDB)
22+ - ✅ ** Advanced SQL** complete (JOINs, subqueries, SIMD analytics)
23+ - 🔄 ** SCDB Storage Format Phase 1** at ** 95%** (database integration + tests pending)
24+ - ✅ ** Build** : Successful (0 errors)
25+ - 🟡 ** Tests** : Core suite passing, SCDB coverage in progress
2126
22- - ✅ ** Phase 1** : Block Registry & Storage Provider
23- - ✅ ** Phase 2** : Space Management & Extent Allocator
24- - ✅ ** Phase 3** : WAL & Crash Recovery
25- - ✅ ** Phase 4** : Migration & Adaptation
26- - ✅ ** Phase 5** : Corruption Detection & Repair
27- - ✅ ** Phase 6** : Unlimited Row Storage (FILESTREAM)
28-
29- ** Status** : Production-ready, 151+ tests passing, 0 errors, 0 warnings
30-
31- ** Latest Build** : ✅ ** February 4, 2026** - All tests fixed and passing
32- - Fixed DirectoryStorageProvider file extension (.dat) for migration compatibility
33- - Optimized allocation strategy benchmarks with realistic performance thresholds
34- - All SCDB Phase components verified and validated
35-
36- See: [ Phase 6 Final Status] ( docs/PHASE6_FINAL_STATUS.md ) | [ Implementation Progress] ( docs/IMPLEMENTATION_PROGRESS_REPORT.md )
27+ See: [ Executive Summary] ( docs/EXECUTIVE_SUMMARY.md ) | [ Unified Roadmap] ( docs/UNIFIED_ROADMAP.md ) | [ Feature Status Matrix] ( docs/FEATURE_STATUS.md )
3728
3829---
3930
40- A high-performance, encrypted, embedded database engine for .NET 10 with ** B-tree indexes** , ** SIMD-accelerated analytics** , and ** unlimited row storage support ** . Pure .NET implementation with enterprise-grade encryption and world-class analytics performance. ** Beats SQLite AND LiteDB on INSERT!** 🏆
31+ A high-performance, encrypted, embedded database engine for .NET 10 with ** B-tree indexes** , ** SIMD-accelerated analytics** , and a ** row-overflow roadmap ** for large payloads . Pure .NET implementation with enterprise-grade encryption and world-class analytics performance. ** Beats SQLite AND LiteDB on INSERT!** 🏆
4132
4233- ** License** : MIT
4334- ** Platform** : .NET 10, C# 14
44- - ** Status** : ** Production Ready ** ✅
35+ - ** Status** : ** Core engine production-ready; SCDB storage format in progress **
4536- ** Encryption** : AES-256-GCM at rest (** 0% overhead, sometimes faster!** ✅)
4637- ** Analytics** : ** 28,660x faster** than LiteDB with SIMD vectorization ✅
4738- ** Analytics** : ** 682x faster** than SQLite with SIMD vectorization ✅
@@ -50,7 +41,7 @@ A high-performance, encrypted, embedded database engine for .NET 10 with **B-tre
5041- ** UPDATE** : ** 5.4x faster** Single-File mode with batch coalescing ✅ ** NEW!**
5142- ** UPDATE** : Competitive with LiteDB (60ms vs 65ms) ✅ ** NEW!**
5243- ** B-tree Indexes** : O(log n + k) range scans, ORDER BY, BETWEEN support ✅
53- - ** Unlimited Rows ** : FILESTREAM support for multi-gigabyte rows ✅
44+ - ** Row Overflow (Phase 6) ** : Planned FILESTREAM support for multi-gigabyte rows
5445
5546---
5647
@@ -114,13 +105,12 @@ db.ExecuteSQL("INSERT INTO files VALUES (1, @data)");
114105- ** Zero Configuration** : Automatic key management
115106- ** GDPR/HIPAA Compliant** : Enterprise-grade security
116107
117- ### 🗄️ ** Unlimited Row Storage** - ** Phase 6 NEW! **
108+ ### 🗄️ ** Row Overflow Storage (SCDB Phase 6 - Planned) **
118109
119110- ** No arbitrary size limits** - Filesystem only (256TB NTFS)
120111- ** 3-tier auto-selection** : Inline (4KB) / Overflow (256KB) / FileStream (∞)
121- - ** Orphan detection** - Find unreferenced files
122- - ** Safe cleanup** - With retention period (7 days default)
123- - ** Production quality** - SHA-256 checksums, atomic operations
112+ - ** Orphan detection** and cleanup tooling
113+ - ** Status** : Design complete, implementation planned
124114
125115### 🏗️ ** Modern Architecture**
126116
@@ -143,97 +133,35 @@ db.ExecuteSQL("INSERT INTO files VALUES (1, @data)");
143133- ** Subqueries** : ✅ ** WHERE, FROM, SELECT, IN, EXISTS, Correlated** (Production Ready)
144134- ** Advanced** : Complex expressions, multi-table queries, query optimization
145135
146- ---
147-
148- ## 📊 Performance Benchmarks (February 3, 2026)
149-
150- ** Test Environment** : Windows 11, Intel i7-10850H @ 2.70GHz (6 cores/12 threads), 16GB RAM, .NET 10
151- ** Status** : ** SCDB Phase 6 Production Ready** + ** Phase 2 Batch UPDATE Optimization**
152-
153- ---
154-
155- ### 🔥 ** 1. ANALYTICS - WORLD CLASS PERFORMANCE**
156-
157- ** Test** : ` SUM(salary) + AVG(age) ` on 5,000 records (columnar storage with SIMD)
158-
159- | Database | Time | vs SharpCoreDB | Memory |
160- | ----------| ------| ----------------| ---------|
161- | ** SharpCoreDB (SIMD Columnar)** | ** 1.08 µs** | ** Baseline** ✅ | ** 0 B** |
162- | SQLite (GROUP BY) | 737 µs | 682x slower | 4.4 KB |
163- | LiteDB (Aggregate) | 30,952 µs | ** 28,660x slower** | 11.4 MB |
164-
165- ---
166-
167- ### 📥 ** 2. INSERT Performance - FASTER THAN SQLite & LiteDB!** 🏆
168-
169- ** Test** : Batch insert 1,000 records (5 iterations)
136+ ## 🧭 RDBMS Feature Roadmap (Planned)
170137
171- | Database | Time | Ratio | Memory |
172- | ----------| ------| -------| --------|
173- | ** SharpCoreDB Single File** | ** 3,681 µs** | ** 0.36x** ✅ | 4.6 MB |
174- | ** SharpCoreDB Single (Encrypted)** | ** 3,941 µs** | ** 0.39x** ✅ | 4.6 MB |
175- | SQLite | 5,701 µs | 0.56x | 926 KB |
176- | LiteDB | 6,513 µs | 0.64x | 12.5 MB |
177- | SharpCoreDB PageBased | 9,761 µs | 1.00x | 14.0 MB |
138+ | Feature | Status | Target | Notes |
139+ | ---------| --------| --------| -------|
140+ | Triggers | 🚧 Planning | Q2 2026 | BEFORE/AFTER INSERT/UPDATE/DELETE |
141+ | Stored Procedures | 🚧 Planning | Q2 2026 | Pre-compiled routines |
142+ | Views | 🚧 Planning | Q2 2026 | Virtual tables |
178143
179144---
180145
181- ### 🔍 ** 3. SELECT Performance**
182-
183- ** Test** : Full table scan with WHERE clause on 5,000 records
184-
185- | Database | Time | Ratio | Memory |
186- | ----------| ------| -------| --------|
187- | ** SharpCoreDB Dir (Unencrypted)** | ** 814 µs** | ** 0.86x** ✅ | 2.8 MB |
188- | SharpCoreDB Dir (Encrypted) | 855 µs | 0.91x | 2.8 MB |
189- | SharpCoreDB PageBased | 944 µs | 1.00x | 2.8 MB |
190- | SharpCoreDB Single File | 2,547 µs | 2.70x | 3.6 MB |
191-
192- ---
193-
194- ### ✏️ ** 4. UPDATE Performance - 5.4x IMPROVEMENT!** 🏆 ** NEW!**
195-
196- ** Test** : 500 random updates on 5,000 records (batch UPDATE optimization)
197-
198- | Database | Time | Ratio | Memory |
199- | ----------| ------| -------| --------|
200- | SQLite | 6,459 µs | 0.54x | 202 KB |
201- | ** SharpCoreDB Dir (Encrypted)** | ** 7,513 µs** | ** 0.63x** ✅ | 3.3 MB |
202- | ** SharpCoreDB Dir (Unencrypted)** | ** 9,041 µs** | ** 0.75x** ✅ | 3.4 MB |
203- | SharpCoreDB PageBased | 12,065 µs | 1.00x | 3.4 MB |
204- | ** SharpCoreDB Single File** | ** 60,170 µs** | ** 5.02x** | ** 1.9 MB** ✅ |
205- | ** SharpCoreDB Single (Encrypted)** | ** 62,107 µs** | ** 5.18x** | ** 1.9 MB** ✅ |
206- | LiteDB | 65,126 µs | 5.43x | 24.5 MB |
207- | AppendOnly | 118,638 µs | 9.89x | 35.1 MB |
208-
209- > ** Note** : Single-File UPDATE improved ** 5.4x faster** (from 325ms to 60ms) with ** 280x less memory** (from 540MB to 1.9MB) thanks to batch UPDATE coalescing optimization.
146+ ## 📚 Documentation
210147
211- ---
148+ ### Project Status & Roadmap
149+ - 📖 [ Executive Summary] ( docs/EXECUTIVE_SUMMARY.md )
150+ - 📖 [ Project Status (Unified)] ( docs/PROJECT_STATUS_UNIFIED.md )
151+ - 📖 [ Unified Roadmap] ( docs/UNIFIED_ROADMAP.md )
152+ - 📖 [ Feature Status Matrix] ( docs/FEATURE_STATUS.md )
212153
213- ## 📚 Documentation
154+ ### SCDB Reference
155+ - 📖 [ SCDB Implementation Status] ( docs/scdb/IMPLEMENTATION_STATUS.md )
156+ - 📖 [ SCDB Phase 1 Complete] ( docs/scdb/PHASE1_COMPLETE.md )
157+ - 📖 [ SCDB Phase 2 Complete] ( docs/scdb/PHASE2_COMPLETE.md )
158+ - 📖 [ SCDB Phase 3 Complete] ( docs/scdb/PHASE3_COMPLETE.md )
159+ - 📖 [ SCDB Phase 4 Design] ( docs/scdb/PHASE4_DESIGN.md )
160+ - 📖 [ SCDB Phase 5 Complete] ( docs/scdb/PHASE5_COMPLETE.md )
214161
215- ### Phase Completion Documents
216- - 📖 [ Phase 6 Final Status] ( docs/PHASE6_FINAL_STATUS.md ) - Project completion summary
217- - 📖 [ Phase 6 Completion Summary] ( docs/PHASE6_COMPLETION_SUMMARY.md ) - Feature overview
218- - 📖 [ Phase 6 Design] ( docs/scdb/PHASE6_DESIGN.md ) - Architecture details
219- - 📖 [ Phase 6 Complete] ( docs/scdb/PHASE6_COMPLETE.md ) - Test results
220-
221- ### Project Overview
222- - 📖 [ Implementation Progress Report] ( docs/IMPLEMENTATION_PROGRESS_REPORT.md ) - Full project status
223- - 📖 [ SCDB Implementation Status] ( docs/scdb/IMPLEMENTATION_STATUS.md ) - All 6 phases
224- - 📖 [ Production Guide] ( docs/scdb/PRODUCTION_GUIDE.md ) - Deployment guide
225-
226- ### Phase Details
227- - 📖 [ Phase 1: Block Registry] ( docs/scdb/PHASE1_COMPLETE.md )
228- - 📖 [ Phase 2: Space Management] ( docs/scdb/PHASE2_COMPLETE.md )
229- - 📖 [ Phase 3: WAL & Recovery] ( docs/scdb/PHASE3_COMPLETE.md )
230- - 📖 [ Phase 4: Migration] ( docs/scdb/PHASE4_DESIGN.md )
231- - 📖 [ Phase 5: Hardening] ( docs/scdb/PHASE5_COMPLETE.md )
232-
233- ### Recent Updates (February 2026)
234- - 🔧 [ Test Fixes - Migration & Benchmarks] ( docs/TEST_FIXES_20260204.md ) - DirectoryStorageProvider compatibility
235- - 📊 [ Phase 2 Summary] ( docs/PHASE2_SUMMARY_20260203.md ) - Space management completion
236- - 🚀 [ Performance Regression Fix Plan] ( docs/PERFORMANCE_REGRESSION_FIX_PLAN.md ) - Optimization strategy
162+ ### Additional References
163+ - 📖 [ Performance Regression Fix Plan] ( docs/PERFORMANCE_REGRESSION_FIX_PLAN.md )
164+ - 📖 [ Priority Work Items] ( docs/PRIORITY_WORK_ITEMS.md )
237165
238166---
239167
@@ -264,9 +192,8 @@ db.ExecuteSQL("INSERT INTO users VALUES (1, 'Alice')");
264192// Query data
265193var rows = db .ExecuteQuery (" SELECT * FROM users" );
266194
267- // Advanced: Handle large data
195+ // Planned: FILESTREAM storage for large payloads (SCDB Phase 6)
268196var largeData = new byte [50_ 000_ 000 ]; // 50MB
269- // Automatically stored in FILESTREAM (Phase 6)
270197db .ExecuteSQL (" INSERT INTO data VALUES (@blob)" );
271198```
272199
@@ -291,29 +218,25 @@ db.ExecuteSQL("INSERT INTO data VALUES (@blob)");
291218└─────────────────────────────────────────────────────┘
292219```
293220
294- ** Phase 6 Integration** : FILESTREAM support for unlimited row sizes
295-
296- ---
297-
298- ## ✅ Project Statistics
221+ ## ✅ Project Snapshot
299222
300223| Metric | Value | Status |
301224| --------| -------| --------|
302- | ** Total Phases** | 6/6 | ✅ Complete |
303- | ** Lines of Code** | ~ 12,191 | ✅ Production |
304- | ** Tests** | 151+ | ✅ All Passing |
225+ | ** Performance Optimization** | 7,765x faster | ✅ Complete |
226+ | ** INSERT Optimization** | 1.21x faster than LiteDB | ✅ Complete |
227+ | ** Advanced SQL** | JOINs + Subqueries | ✅ Complete |
228+ | ** SCDB Phase 1** | 95% | 🔄 In Progress |
305229| ** Build Status** | 0 errors | ✅ Success |
306- | ** Efficiency ** | 96% faster | ✅ Delivered |
230+ | ** Tests ** | Core suite passing | 🟡 SCDB tests pending |
307231
308232---
309233
310- ## 🏆 Awards & Recognition
234+ ## 🏆 Highlights
311235
312- - ** Database Performance** : Beats SQLite by 43% on INSERT, LiteDB by 44% ✅
236+ - ** INSERT Performance** : 43% faster than SQLite, 44% faster than LiteDB ✅
313237- ** Analytics Speed** : 682x faster than SQLite, 28,660x faster than LiteDB ✅
314- - ** UPDATE Optimization** : 5.4x faster Single-File mode, 280x less memory ✅ ** NEW!**
315- - ** Code Quality** : 151+ tests, comprehensive documentation ✅
316- - ** Production Ready** : SCDB 100% complete with crash recovery ✅
238+ - ** UPDATE Optimization** : 5.4x faster Single-File mode, 280x less memory ✅
239+ - ** Encryption** : AES-256-GCM with 0% overhead ✅
317240
318241---
319242
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