Data integrity is everything. Whether you’re securing financial transactions, healthcare records, or critical business data, trust is non-negotiable. Thatโs where SQL Server Ledger comes inโbringing blockchain-style integrity to relational databases without the complexity of a full blockchain implementation.
๐ What is SQL Server Ledger?
Ledger in SQL Server and Azure SQL Database provides an immutable, cryptographically verified record of changes. It prevents tampering while allowing transparency, making it ideal for audit trails and compliance needs.
๐ ๏ธ How It Works
Ledger tables function like traditional tables but are cryptographically hashed. SQL Server maintains a history of all changes and generates a digest that can be stored externally for verification.
Example: Creating a Ledger Table
(Sample from Microsoft Docsโcredit: Microsoft Learn source)
CREATE TABLE ContosoSales (
ProductID INT PRIMARY KEY,
Quantity INT,
Price DECIMAL(10,2)
) WITH (LEDGER = ON);
This ensures every transaction is logged and cannot be alteredโgiving businesses a cryptographic proof of integrity.
๐ฅ Why Use SQL Server Ledger?
โ
Tamper-proof transactions โ Prevent unauthorized modifications.
โ
Blockchain benefits, minus complexity โ No need for decentralized nodes.
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Regulatory compliance โ Strengthen audit trails for industries like finance, healthcare, and supply chain.
๐ Get Started
Ready to lock down your data? Learn more and see additional examples here:
๐ SQL Server Ledger Overview
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