Developer Tools

SQL Compare

AI-powered hands-off comparison between databases. Generates modular, implementable sync scripts to align DDL and code across environments.

Intelligent Schema Comparison

╔══════════════════════════════════════════════════════════════════╗
║                    SQL COMPARE RESULTS                            ║
║                                                                   ║
║  Source: dev-database        Target: prod-database               ║
║  Compared: 2024-12-25 10:30  Duration: 4.2 seconds                ║
╠══════════════════════════════════════════════════════════════════╣
║ SUMMARY                                                           ║
║ ─────────────────────────────────────────────────────────────── ║
║  Tables:         +3 new    2 modified    0 deleted               ║
║  Views:          +1 new    1 modified    0 deleted               ║
║  Stored Procs:   +5 new    8 modified    1 deleted               ║
║  Functions:      +0 new    2 modified    0 deleted               ║
║  Indexes:        +4 new    0 modified    2 deleted               ║
╠══════════════════════════════════════════════════════════════════╣
║ MODULAR SYNC SCRIPTS GENERATED                                    ║
║ ─────────────────────────────────────────────────────────────── ║
║                                                                   ║
║  📁 sync-scripts/                                                 ║
║  ├── 01-tables/                                                   ║
║  │   ├── 01-create-CustomerPreferences.sql                       ║
║  │   ├── 02-create-OrderAuditLog.sql                             ║
║  │   ├── 03-create-ShippingZones.sql                             ║
║  │   ├── 04-alter-Orders-add-tracking.sql                        ║
║  │   └── 05-alter-Products-add-weight.sql                        ║
║  ├── 02-views/                                                    ║
║  │   ├── 01-create-vw_CustomerOrders.sql                         ║
║  │   └── 02-alter-vw_SalesReport.sql                             ║
║  ├── 03-procedures/                                               ║
║  │   ├── 01-create-sp_ProcessRefund.sql                          ║
║  │   ├── 02-alter-sp_GetCustomerOrders.sql                       ║
║  │   └── ... (11 more)                                           ║
║  ├── 04-functions/                                                ║
║  │   └── 01-alter-fn_CalculateDiscount.sql                       ║
║  ├── 05-indexes/                                                  ║
║  │   ├── 01-create-IX_Orders_CustomerDate.sql                    ║
║  │   └── ... (3 more)                                            ║
║  └── 00-deploy-all.sql          ← Master deployment script       ║
║                                                                   ║
║  [Deploy to Target] [Export Scripts] [View Details]              ║
╚══════════════════════════════════════════════════════════════════╝

Key Features

🤖

AI-Driven Comparison

Intelligent comparison that understands semantic differences, not just text changes. Detects refactored code and renamed objects.

📦

Modular Scripts

Generates individual, reviewable scripts for each change. No monolithic deployment files that are impossible to debug.

🔒

Safe Deployment Order

Automatically orders scripts based on dependencies. Tables before FKs, functions before procedures that use them.

📋

DDL & Code Coverage

Compares tables, views, stored procedures, functions, triggers, indexes, constraints, and permissions.

🌍

Environment Aware

Handles environment-specific configurations. Excludes dev-only objects, adjusts for staging vs production.

↩️

Rollback Scripts

Automatically generates rollback scripts for each change. One-click undo if something goes wrong.

Detailed Diff View

Comparing: dbo.sp_GetCustomerOrders
  CREATE PROCEDURE dbo.sp_GetCustomerOrders
    @CustomerId INT,
-   @StartDate DATE = NULL
+   @StartDate DATE = NULL,
+   @IncludeReturns BIT = 0
  AS
  BEGIN
    SELECT
      o.OrderId,
      o.OrderDate,
      o.Total,
-     o.Status
+     o.Status,
+     o.TrackingNumber,
+     CASE WHEN r.ReturnId IS NOT NULL THEN 1 ELSE 0 END AS HasReturn
    FROM Orders o
+   LEFT JOIN Returns r ON o.OrderId = r.OrderId
+     AND @IncludeReturns = 1
    WHERE o.CustomerId = @CustomerId
      AND (@StartDate IS NULL OR o.OrderDate >= @StartDate)
    ORDER BY o.OrderDate DESC
  END

CLI Usage

# Compare two databases
sql2ai compare \
  --source "Server=dev-db;Database=AppDB" \
  --target "Server=prod-db;Database=AppDB" \
  --output ./sync-scripts

# Compare with options
sql2ai compare \
  --source dev-db \
  --target prod-db \
  --include tables,views,procedures \
  --exclude "*_backup,*_temp" \
  --generate-rollback \
  --output ./deployment

# Preview changes without generating scripts
sql2ai compare --source dev-db --target prod-db --preview

# Compare specific objects
sql2ai compare \
  --source dev-db \
  --target prod-db \
  --objects "dbo.Orders,dbo.sp_*"

# Deploy generated scripts
sql2ai compare deploy \
  --scripts ./sync-scripts \
  --target prod-db \
  --dry-run

# Generate deployment report
sql2ai compare report \
  --source dev-db \
  --target prod-db \
  --format html \
  --output comparison-report.html

Deployment Workflow

1
Compare
Analyze source and target schemas
2
Review
Examine modular sync scripts
3
Test
Dry-run on staging environment
4
Deploy
Execute with rollback ready

Stop Manual Schema Comparisons

Let SQL Compare handle the tedious work of finding differences and generating deployment-ready sync scripts.

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