Microsoft SQL Server 2008 Express (64-bit)

Microsoft SQL Server 2008 Express Edition (64-bit) is the 64-bit version of the free, entry-level database management system provided by Microsoft. It shares many features with its 32-bit counterpart, SQL Server 2008 Express Edition (32-bit), but is designed to take advantage of the capabilities of 64-bit hardware and operating systems.

Key points about SQL Server 2008 Express Edition (64-bit) include:

1. **64-Bit Architecture:** The 64-bit version of SQL Server 2008 Express Edition is designed to run on 64-bit versions of the Windows operating system. It can utilize the increased memory address space and processing capabilities offered by 64-bit systems, which can lead to improved performance and scalability for certain workloads.

2. **Database Engine:** Similar to the 32-bit version, the 64-bit version of SQL Server 2008 Express Edition includes the core database engine, which manages data storage, retrieval, and management tasks. It supports the Transact-SQL (T-SQL) language for querying and interacting with databases.

3. **Database Size and User Connections:** The size limitations for individual databases and the maximum number of concurrent user connections in SQL Server 2008 Express Edition (64-bit) are similar to the 32-bit version, with a maximum database size of 10 GB and a maximum of 10 concurrent user connections.

4. **SQL Server Management Studio:** SQL Server Management Studio Express is the graphical tool provided for managing SQL Server databases. It allows users to create and manage databases, perform queries, and administer database objects.

5. **Data Types and Features:** The 64-bit version supports a wide range of data types and features, including stored procedures, triggers, views, and indexes, similar to the 32-bit version.

6. **Integration:** SQL Server 2008 Express Edition (64-bit) can be integrated with applications developed in various programming languages, providing a backend database solution.

7. **Performance and Scalability:** The increased memory address space available in 64-bit systems can lead to improved performance for applications that require a larger memory footprint or complex data processing.

8. **Security:** Basic security features, such as user authentication and authorization, are included to control access to the database.

Since the release of SQL Server 2008 Express Edition, Microsoft has continued to develop and release new versions of SQL Server, including SQL Server 2019. These newer versions offer enhanced features, improved performance, and increased scalability. If you’re considering using SQL Server for your applications, it’s recommended to explore the latest version available to ensure you have access to the latest features and capabilities.