Sqlserver is what has what advantages
sqlserver is Microsoft’s relational database management system. It is easy to use and scalable with a high degree of integration with related software.
Ease of use, scalability for distributed organizations, data warehousing capabilities for decision support, tightly linked integration with many other server software, good price/performance ratio, etc.; for the management and analysis of data to bring the flexibility to allow the unit to respond comfortably to the fast-changing environment, so as to gain a competitive advantage. From a data management and analytics perspective, it is important to turn raw data into business intelligence and capitalize on the opportunities presented by the Web.
As a complete database and data analytics package, sqlserver opens the door to rapid development of a new generation of enterprise-class business applications that give organizations a core competitive advantage. A record holder in important benchmarking scalability and speed awards, sqlserver 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.
openness: sqlserver can only run on windows without the slightest openness operating system system stability is very important to the database Windows9X series of products in favor of desktop applications NT server is only suitable for small businesses and windows platform dependability security and scalability is very limited like the unix kind of time-tested.
Scalability Parallelism: sqlserver parallel implementation and coexistence model is not mature and difficult to deal with the increasing number of users and data volume scalability is limited;
Security: did not get any security certificates. Performance: sqlserver multi-user performance is good; client support and application mode: client support and application mode. Only support C / S mode, sqlserver C / S structure only supports windows clients with ADO, DAO, OLEDB, ODBC connection;
Use risk: sqlserver completely rewritten code experienced a long time to test the disconnect delayed many of the features need time to prove and very compatible.
What is the use of learning SQL and what is it used for?
SQL is used to store data, do some management systems, websites and what not, will use sqlserver to store data, the role of SQL:
SQL is mainly used for database series of software querying, summarizing, writing, deleting and changing the manipulation of the specific application of the database programming or maintenance of database data.
That is to say, SQL is generally used for database programming, as well as existing database error troubleshooting. Therefore, the programmers or computer information system maintenance personnel involved in the general database need to learn SQL (that is, the database) knowledge.
Structured Query Language is a high-level, non-procedural programming language that allows users to work on high-level data structures. It does not require the user to specify the method of storing data, nor does it require the user to understand the specific data storage, so different database systems with completely different underlying structures can use the same structured query language as an interface for data entry and management.
Structured query language statements can be nested, which makes it extremely flexible and powerful.
What is SQL database? What is it mainly for?
sql database is a database management system that follows the standards of the sql language, you can add, delete, update data through the sql language, the creation, modification, deletion of objects in the database. As well as data query, transaction control, etc. In summary, the operation of the sql language on the database is summarized as follows:
1. Data Definition: also known as the “DDL language”, the definition of the logical structure of the database, including the definition of the database, the basic tables, views and indexes in four parts.
2. Data manipulation: also known as “DML language”, including insertion, deletion and update three operations.
3. Data query: also known as “DQL language”, including data query operations.
4. Data Control: also known as the “DCL language”, the control of user access to the data has a basic table and view authorization and recovery.
5. Transaction control: also known as the “TCL language”, including the transaction commit and rollback.
6. Embedded SQL Language Usage Provisions: Rules that govern the use of SQL statements in programs in the host language.
sql database is based on a database management system that follows the sql standard language, such as Oracle, Sybase, MicrosoftSQLServer, Access, etc. have adopted the SQL language standard. Although many databases have redeveloped and extended SQL statements, the standard SQL commands, including Select, Insert, Update, Delete, Create, and Drop, can still be used to accomplish almost any database operation.
Through the years of application of the database as well as from the daily operation and maintenance of the experience gained, it is recommended that interested like-minded database enthusiasts can start from the relatively simple sqlserver database, you can from Baidu library, CSDN and other Web sites to obtain the relevant technical information, but also with me to exchange, and common improvement.
What is the role of SQL?
A, the role of SQL:
1, SQL is mainly used in the database series of software query, summarize, write, delete and change the manipulation of the specific application of database programming or database data maintenance.
2, that is to say, SQL is generally used for database programming, as well as existing database error troubleshooting. Therefore, the general programmers or computer information system maintenance personnel involved in the database need to SQL (that is, the database) knowledge to learn.
Two, related knowledge:
1, SQL is a structured query language (StructuredQueryLanguage) for short.
2, in the current it is mainly used in Microsoft’s SQLServer and Oracle Oracle database server for data manipulation. Other small databases, stand-alone databases also tend to use it as an interface command statements, such as MYSQL, ACCESS and so on.
3, in large-scale database applications, generally by the program development and design of specific functions corresponding to the SQL statement embedded in the program, the need for multiple complex SQL statement, but also to store procedures and other ways to set written in the database server for invocation. Users often do not need to deal with specialized SQL statements.