What is SQL Server

SQL Server is a relational database system, a scalable and high-performance database management system designed for distributed client/server computing. It contains multiple versions to meet the needs of different users

SQL Server is a large database system launched by Microsoft. Today we will introduce in detail what sql server is and its advantages and disadvantages. It has certain I hope the reference value will be helpful to everyone.

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SQL Server Introduction

SQL Server is a relational database system. It is also a scalable, high-performance database management system designed for distributed client/server computing. It achieves organic integration with Windows NT and provides Developed a transaction-based enterprise-level information management system solution. Like all database management systems, SQL Server supports the standard SQL language, and it additionally includes T-SQL, its own SQL implementation. SQL Server Management Studio (SSMS) is the main interface tool for SQL Server and supports both 32-bit and 64-bit environments. In addition, SQL Server provides multiple versions with different functions and options to meet the needs of different users.

SQL Server database classification

Complete type:

Mainly for large For enterprises, data warehouses and web-based databases in SQL Server are specially prepared for enterprises with complex data requirements. This has all the functions of SQL Server

Standard type:

The standard type is mainly aimed at small and medium-sized enterprises. Because there are no size and user restrictions, it can be used as a small web server Or the back-end database of a branch office

Free type:

Free release, has a small number of functions and limits the size of the database and users, can be used as an Access database Alternatives

SQL Server Advantages and Disadvantages

Advantages:

1. By creating a unique index, you can ensure the uniqueness of each row of data in the database table.

2. By creating an index, you can greatly speed up data retrieval.

3. By using an index, you can use an optimization hider during the query process to improve system performance.

4. When using grouping and sorting clauses for data retrieval, the time for grouping and sorting in queries can also be significantly reduced

Disadvantages:

1. It can only run on the Windows platform. The platform is single and does not have openness

2. The parallel implementation and coexistence model are immature, difficult to process large-scale data, and the scalability is limited

3. When users have many connections, the performance will become very poor and unstable

4. The client supports application mode and only supports C/S mode

Summary: The above is the entire content of this article , I hope it will be helpful for everyone to understand SQL Server.

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