# Database Migration - Current Status Summary

**Date:** 2025-11-06
**Session End:** Ready to create Phase 1 SQL scripts
**Status:** Design 100% Complete ✅

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## Design Complete ✅

All design decisions finalized and documented:

1. ✅ Communications infrastructure (generic `address` field)
2. ✅ Compliance tracking (from inventory.xlsx)
3. ✅ Warranty management (simplified)
4. ✅ Machine relationships (dualpath, controller associations)
5. ✅ Controller fields (controllertypeid, controllerosid)
6. ✅ 100% inventory.xlsx column coverage (35/35 columns)

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## Final Table Counts

**New Tables:** 7
1. comstypes (8 columns)
2. communications (9 columns)
3. compliance (15 columns) - includes MFT
4. compliancescans (5 columns)
5. warranties (5 columns)
6. relationshiptypes (5 columns)
7. machinerelationships (6 columns)

**Modified Tables:** 2
1. machines (+11 columns) - now 21 total
2. businessunits (+2 columns) - now 6 total

**Renamed:** pcstatus → machinestatus

**Deprecated:** pc, pc_comm_config, pc_network_interfaces, pctype

**Total New Columns:** 61

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## Final machines Table (21 columns)

1. machineid (PK)
2. machinetypeid (FK) - includes PC types
3. machinenumber
4. alias
5. hostname (NEW - for PCs)
6. serialnumber (NEW)
7. loggedinuser (NEW - for PCs)
8. modelnumberid (FK)
9. **controllertypeid (NEW - for CNCs)**
10. **controllerosid (NEW - controller OS)**
11. **osid (NEW - for PCs)**
12. machinestatusid (NEW)
13. businessunitid (FK)
14. printerid (FK)
15. mapleft
16. maptop
17. isactive
18. islocationonly
19. machinenotes
20. lastupdated (NEW)
21. dateadded (NEW)

**Key:** Both PC OS and Controller OS use the same `operatingsystems` table!

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## Inventory.xlsx Coverage: 100% (35/35)

All columns mapped to database:
- ✅ VLAN → communications.settings JSON
- ✅ MFT → compliance.mft
- ✅ OT Asset Fields → machinerelationships table

See: `INVENTORY_COLUMN_MAPPING.md` for complete mapping

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## Documentation Files

1. **DATABASE_MIGRATION_FINAL_DESIGN.md** (23KB)
   - Complete specification
   - All table structures
   - Migration strategy
   - Risk mitigation

2. **MIGRATION_QUICK_REFERENCE.md** (4.6KB)
   - Quick lookup
   - Table summaries
   - Key decisions

3. **MACHINE_RELATIONSHIPS_EXAMPLES.md** (9.4KB)
   - Real-world examples
   - Query patterns
   - ASP code samples

4. **INVENTORY_COLUMN_MAPPING.md** (NEW - 8KB)
   - 100% column coverage
   - Export query
   - Mapping notes

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## Next Steps (When Ready)

### Phase 1: Create SQL Scripts (8 scripts)

1. **Script 01:** Create communications infrastructure
   - comstypes table
   - communications table

2. **Script 02:** Extend machines table
   - Add 11 new columns
   - Add indexes and FKs

3. **Script 03:** Create PC machine types
   - Insert into machinetypes table

4. **Script 04:** Create warranty infrastructure
   - warranties table

5. **Script 05:** Create compliance infrastructure
   - compliance table (15 columns - includes MFT)
   - compliancescans table

6. **Script 06:** Extend businessunits table
   - Add liaisonname, liaisonsso

7. **Script 07:** Rename pcstatus to machinestatus
   - RENAME TABLE
   - Rename columns

8. **Script 08:** Create machine relationships infrastructure
   - relationshiptypes table
   - machinerelationships table

**Plus:** 8 corresponding rollback scripts

**Estimated Time:** 25 minutes
**Reversibility:** Full (rollback scripts provided)

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## Key Design Decisions

### ✅ Generic `address` Field
One field for IP, COM1, USB, etc. Type determined by `comstypeid`.

### ✅ Controller Fields in machines Table
- controllertypeid (FK → controllertypes)
- controllerosid (FK → operatingsystems)
- Same operatingsystems table used for both PC OS and Controller OS

### ✅ Machine Relationships
- Dualpath: Machines sharing controller
- Controlled By: PC controlling machine
- Future: Clusters, backups, master-slave, etc.

### ✅ VLAN in JSON
Stored in communications.settings instead of dedicated column.

### ✅ MFT Field
Added to compliance table for Managed File Transfer tracking.

### ✅ Simplified Warranties
Just warrantyname and enddate - minimal approach.

### ✅ Liaison in businessunits
No separate liaisons table - added directly to businessunits.

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## Migration Volumes (Estimated)

- machines: 543 total (266 existing + 277 from PCs)
- communications: ~650+ records
- warranties: ~277+ records
- compliance: TBD (from inventory.xlsx import)
- compliancescans: TBD (ongoing logging)
- machinerelationships: ~50+ (dualpath pairs + PC controllers)

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## Questions to Revisit (Optional)

None currently - all design decisions finalized!

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## Session Notes

**What was accomplished:**
- Designed 7 new tables
- Extended 2 existing tables
- Achieved 100% inventory.xlsx coverage
- Documented machine relationships pattern
- Finalized controller field approach
- Created comprehensive documentation

**Ready for:**
- Phase 1 SQL script creation
- Dev environment testing
- Data migration planning

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**Status:** Ready to proceed with implementation whenever you're ready!

**Last Updated:** 2025-11-06 (End of design session)