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Welcome to the latest blog post for SQLSupport.org. Today, we'll be diving into one of the most exciting features offered by SQL Server 2022: Ledger Tables for Tamper Detection. Ledger Tables are a revolutionary feature in SQL Server 2022, enabling businesses to maintain a secure, tamper-evident system for sensitive data. They ensure the integrity of your data by preventing unauthorized modifications and deletions.

To get started with Ledger Tables in SQL Server 2022, you should first create a ledger table. This can be done using a CREATE TABLE statement with the LEDGER option, as shown below:

CREATE TABLE LedgerTable (ID INT PRIMARY KEY, Amount DECIMAL(19,4)) WITH (LEDGER = ON, DISTRIBUTION = HASH(ID))

This table creates a ledger for tracking ID and Amount. The LEDGER = ON option turns on the ledger feature for the table, and the DISTRIBUTION = HASH(ID) option specifies the distribution of the table across the server. Once the table is created, any inserts, updates or deletes will be recorded in the ledger, ensuring data integrity and tamper detection.

With Azure SQL, you can leverage the power of Microsoft Fabric to further enhance the security and scalability of your ledger tables. Microsoft Fabric is a distributed systems platform that provides a high degree of scale, uptime, and reliability. By integrating Azure SQL with Microsoft Fabric, you can have your ledger tables distributed across multiple servers, improving performance and resilience.

Additionally, for data lake scenarios, you can integrate SQL Server 2022 Ledger Tables with Delta Lake on Databricks. Delta Lake is an open-source storage layer that brings ACID transactions to Apache Spark™ and big data workloads. By storing your ledger tables in Delta Lake, you can take advantage of its versioning and auditing capabilities, further enhancing your ability to track and prevent data tampering.

-- Store LedgerTable data into Delta Lake
CREATE TABLE delta.`/mnt/delta/LedgerTable` USING DELTA AS SELECT * FROM LedgerTable

OpenAI has also enhanced SQL Server 2022 Ledger Tables with its sophisticated AI capabilities. By using OpenAI + SQL, you can perform advanced analytics on your ledger tables, detecting unusual patterns that could indicate potential data tampering. This adds a powerful layer of security to your ledger tables, helping to ensure the integrity of your data.

In conclusion, SQL Server 2022 Ledger Tables provide a robust, secure framework for maintaining data integrity and detecting tampering. By leveraging Azure SQL, Microsoft Fabric, Delta Lake, Databricks, and OpenAI, you can enhance the security, scalability, and analytical capabilities of your ledger tables, ensuring the trustworthiness of your data.

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