Key Sql Server 2019 - Enterprise

SQL Server 2019 Enterprise Edition: Key Features & Licensing Guide 1. Overview SQL Server 2019 Enterprise is the premium edition designed for mission-critical applications, large-scale data warehousing, and advanced analytics. It offers unlimited virtualization, maximum hardware scalability, and all features included in Standard and Developer editions. 2. Top 5 Key Enterprise-Only Features A. Big Data Clusters

Integrates SQL Server, Spark, and HDFS into a unified platform. Query external Oracle, Teradata, MongoDB, and HDFS data in-place (PolyBase). Use case: Data virtualization across on-prem & cloud.

B. Intelligent Query Processing (IQP)

Adaptive Joins: Dynamically chooses between Nested Loop, Hash, or Merge joins at runtime. Table Variable Deferred Compilation: Table variables now trigger recompiles based on actual row count. Batch Mode on Rowstore: Accelerates analytics directly on rowstore tables without columnstore indexes. key sql server 2019 enterprise

C. Mission-Critical Availability

Always On Availability Groups (AG): Up to 8 secondary replicas (Standard: 1 replica, no readable secondaries). Automatic Page Repair: Self-healing from corruption on mirror/AG replicas. Online Indexing & Schema Changes: Alter tables/indexes without blocking user connections.

D. Advanced Security

Always Encrypted with Secure Enclaves: Perform rich computations (pattern matching, joins) on encrypted columns without decrypting. Data Classification & Auditing: Native sensitivity classification (GDPR, HIPAA). Ledger (Blockchain): Cryptographically attest data tampering (new in 2019 – requires compatibility level 150).

E. Scalability & Performance Limits | Resource | Enterprise | Standard | |----------|------------|----------| | Max RAM | OS Maximum (12 TB on Windows, 64 TB on Linux) | 128 GB | | Max CPU Sockets | 256 | 4 (or 24 cores) | | Max Database Size | 524 PB | 524 PB (same) | | Buffer Pool | Unlimited | 128 GB | 3. Licensing Guide (Simplified) Core-Based Licensing (Default)

You license every physical core on the server. Minimum: 4 core licenses per physical CPU, 16 core licenses per server. How to calculate: (Number of cores) × (Core License price) Example: 16-core server → 16 Enterprise Core licenses. SQL Server 2019 Enterprise Edition: Key Features &

Server + CAL (Available only for Enterprise in certain volume agreements)

Not commonly used for Enterprise due to cost. Core model is standard.