What is SQL Database

SQL is the abbreviation of Structured Query Language, which is a full-featured database language with a set of operation commands built specifically for databases. When using it, you only need to issue the "what to do" command, "how to do" is not the user to consider.

The data architecture of an SQL database is basically a three-level structure, but the terminology used is different from that of the traditional relational model. In SQL, the relational schema (schema) is called the "base table" (base table); the storage schema (inner schema) is called the "stored file" (stored file); the sub-schema (outer schema) is called the "view" (view); the tuple is called the "row" (row); the attribute is called the "column" (column).

Extended Information:

SQL database advantages:

1, easy to use:

Scalability for distributed organizations, data warehousing capabilities for decision support, tightly linked integration with many other server software, good price/performance ratio and so on.

2.? Brings flexibility to data management and analytics:

Allows units to respond comfortably in a fast-changing environment, thereby gaining a competitive advantage. From a data management and analytics perspective, it's 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 victory for the rapid development of a new generation of enterprise-class business applications that give organizations a core competitive advantage.

Baidu Encyclopedia-SQL Database