A brief discussion on the differences between the three major databases: Mysql, SqlServer, and Oracle

MySQL

advantage:

1. Small size, fast speed, low total cost of ownership, open source;
2. Support multiple operating systems;
3. It is an open source database, and the interface it provides supports connection operations in multiple languages;

The core program of MySQL adopts full multi-threaded programming. Threads are lightweight processes that can flexibly provide services to users without consuming excessive system resources. MySQL implemented with multithreading and C language can easily make full use of the CPU;

MySql has a very flexible and secure permissions and password system. When a client connects to a MySQL server, all passwords transmitted between them are encrypted, and MySQL supports host authentication;

Supports ODBC for Windows, supports all ODBC 2.5 functions and many other functions, can use Access to connect to the MySql server, so that the application can be expanded;

Supports large databases and can easily support databases with tens of millions of records. As an open source database, it can be modified accordingly for different applications;

It has a very fast and stable thread-based memory allocation system that can be used continuously without worrying about its stability.

MySQL also offers a high degree of diversity, providing many different user interfaces, including command line client operations, web browsers, and a variety of programming language interfaces such as C++, Perl, Java, PHP, and Python. You can use a prepackaged client, or simply write a suitable application yourself. MySQL is available for Unix, Windows, and OS/2 platforms, so it can be used on a PC or a server.

shortcoming:

1. Hot backup is not supported;
2. The biggest drawback of MySQL is its security system, which is complex and non-standard, and changes are not made until mysqladmin is called to reread user permissions.
3. There is no stored procedure language, which is the biggest limitation for programmers accustomed to enterprise-level databases;
4. MySQL prices vary by platform and installation method. MySQL for Linux is free if installed by the user themselves or by the system administrator rather than by a third party, who must pay a licensing fee. Self-installation on Unix or Linux is free, and third-party installation on Unix or Linux is charged.

2. SqlServer

advantage:

1. Ease of use, scalability suitable for distributed organizations, data warehouse capabilities for decision support, close integration with many other server software, good price-performance ratio, etc.
2. It brings flexibility to data management and analysis, allowing organizations to respond calmly in a rapidly changing environment and gain a competitive advantage. From a data management and analysis perspective, it is important to transform raw data into business intelligence and fully exploit the opportunities presented by the Web. As a complete database and data analysis package, SQL Server opens the door to victory for the rapid development of a new generation of enterprise-level business applications and for enterprises to gain core competitive advantages. As the record holder of important benchmark scalability and speed awards, SQL Server is a fully Web-enabled database product that provides core support for Extensible Markup Language (XML) and the ability to query over the Internet and outside the firewall;

shortcoming:

1. Openness: SQL Server can only run on Windows, without any openness. Operating system stability is very important for databases. Windows 9X series products focus on desktop applications. NT server is only suitable for small businesses, and the reliability, security and scalability of the Windows platform are very limited. It is not as proven as Unix, especially for handling large databases.
2. Scalability and parallelism: SQL Server parallel implementation and coexistence model is not mature and difficult to handle the increasing number of users and data volumes, and has limited scalability.
3. Security: No security certificates have been obtained.
4. Performance: SQL Server performs well with multiple users.
5. Client support and application mode: Client support and application mode. Only supports C/S mode. SQL Server C/S structure only supports Windows clients to connect using ADO, DAO, OLEDB, and ODBC.
6. Risks of use: SQL server has completely rewritten its code and has undergone long-term testing and delays. Many features need time to be proven and fully compatible.

3. Oracle

advantage:

1. Openness: Oracle can run on all mainstream platforms (including Windows), fully supports all industrial standards, adopts a completely open strategy to enable customers to choose suitable solutions, and fully supports developers.
2. Scalability and parallelism: Oracle Parallel Server extends Windows NT capabilities by enabling group nodes to share the same cluster work, providing high-availability and high-scalability cluster solutions. Windows NT can meet the needs of users to move the database to UNIX. Oracle Parallel Server has a very high degree of integration with various UNIX platform cluster mechanisms.
3. Security: Certified to the highest certification level ISO standards.
4. Performance: Oracle's high performance holds the world records for TPC-D and TPC-C on an open platform.
5. Client support and application mode: Oracle multi-level network computing supports a variety of industrial standards such as ODBC, JDBC, OCI and other network client connections.
6. Risk of use: Oracle's long-term development experience makes it fully backward compatible and widely used with low risk.

shortcoming:

1. The hardware requirements are very high;
2. The price is relatively expensive;
3. Management and maintenance are more troublesome;
4. The operation is relatively complicated and requires high technical content.
   

The above is a detailed explanation and integration of the differences between the three major databases: Mysql, SqlServer, and Oracle. I hope it will be helpful to everyone. If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!