Shulou(Shulou.com)05/31 Report--

What this article shares with you is about the advantages and disadvantages of MySQL, SqlServer and Oracle databases. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

1. MySQL

II. SqlServer

III. Oracle

First, the advantages of MySQL: small size, high speed, low total cost of ownership, open source; support a variety of operating systems; is an open source database, providing an interface to support multiple language connection operations; the core program of MySQL uses complete multithreaded programming. Threads are lightweight processes that can flexibly provide services to users without too many system resources. Mysql implemented in multithreading and C language can easily take full advantage of CPU;MySql has a very flexible and secure permissions and password system. When the customer connects with the MySql server, all passwords between them are encrypted, and MySql supports host authentication; supports ODBC for Windows, supports all ODBC 2.5 functions and many other functions, can connect to the MySql server with Access, making the application expanded; supports large databases, and can easily support databases with tens of millions of records. As an open source database, it can be modified for different applications; it has a very fast and stable thread-based memory allocation system, which can be used continuously without worrying about its stability. MySQL also provides a high degree of diversity and can provide many different user interfaces, including command line client operations, web browsers, and a variety of programming language interfaces, such as Category Perl, Java, PHP, and Python. You can use a pre-packaged client, or you can simply write an appropriate application yourself. MySQL can be used on platforms such as Unix,Windows and OS/2, so it can be used on personal computers or servers. Disadvantages: does not support hot backup; the biggest disadvantage of MySQL is its security system, mainly complex rather than standard, and only changes when calling mysqladmin to reread user rights; there is no stored procedure (Stored Procedure) language, which is the maximum limit for programmers accustomed to enterprise-class databases; the price of MySQL varies depending on platform and installation. Linux's MySQL is free if it is installed by the user or by the system administrator rather than by a third party, and a license fee must be paid for the third party installation. Unix or linux installation is free of charge, Unix or Linux third-party installation fee.

Second, the advantages of SQL Server: ease of use, scalability suitable for distributed organizations, data warehouse functions for decision support, integration closely related to many other server software, good performance-to-price ratio, etc.; bring flexibility to data management and analysis, allowing units to respond calmly in a rapidly changing environment, thus gaining competitive advantage. From a data management and analysis perspective, it is important to convert raw data into business intelligence and to take full advantage of the opportunities presented by Web. As a complete database and data analysis package, SQLServer opens the door for the rapid development of a new generation of enterprise business applications and for enterprises to win the core competitive advantage. As the record holder of the important benchmark scalability and speed award, SQLServer is a database product with full Web support, providing core support for Extensible markup language (XML) and the ability to query on Internet and outside firewalls Disadvantages: openness: SQL Server can only run on windows without the slightest open operating system stability is very important to the database Windows9X series of products focus on desktop applications NT server is only suitable for small businesses and the windows platform is very limited security and scalability as unix has been tested especially for large databases. Scalable parallelism: SQL server parallel implementation and coexistence model and mature difficult to handle the growing number of users and limited scalability of data volumes. Security: no security certificate has been obtained. Performance: SQL Server has good performance when it is multi-user. Client support and application mode: client support and application mode. It only supports windows S mode, and the SQL Server Cpact S structure only supports windows customers to connect with ADO, DAO, OLEDB, and ODBC. Usage risk: SQL server completely rewrites the code after a long period of testing, breaking delays, and many features take time to prove and are very compatible.

Third, Oracle advantages: openness: Oracle can run on all major platforms (including windows) fully support all industry standards and adopt a completely open strategy to enable customers to choose suitable solutions to fully support developers. Scalability, parallelism: oracle parallel servers provide high usability and high scalability cluster solutions by making group nodes share the same cluster work. WindowsNT can meet the needs of users to move databases. UNIXOracle parallel servers have a high degree of integration for all kinds of UNIX platform cluster mechanisms. Security: obtain the highest certification level of ISO standard certification. Performance: the high performance of Oracle holds the world record for TPC-D and TPC-C on open platform. Client support and application mode: Oracle multi-level network computing supports a variety of industrial standards for ODBC, JDBC, OCI and other network customer connections. Use risk: Oracle's long-term development experience is fully backward compatible with a wide range of applications with low risk. Disadvantages: the requirement of hardware is very high; the price is expensive; the management and maintenance is more troublesome; the operation is more complex and requires high technical content.

The data types of data connection, data modeling and data synchronization of JNPF also have MySql, SqlServer and Oracle databases. They learn from each other and run together to form a perfect database management system.

These are the advantages and disadvantages of MySQL, SqlServer and Oracle databases. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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