Development Status and comparison of various common databases

Looking at the current commercial database market, it is called a mass cut-off. Since the relational model was proposed in 1970s, it has been quickly adopted by commercial database systems due to its outstanding advantages. According to statistics, nearly 1970s of New DBMS systems have adopted relational data models since 90%, and many commercial relational database management systems with excellent performance have emerged. For example, small database systems such as Foxpro, ACCESS, and PARADOX, large database systems such as DB2, INGRES, Oracle, INFORMIX, SYBASE, and SQL SERVER. 1980s and 1990s were the development and competition of RDBMS products. Various products have gone through the development process from centralized to distributed, from single-host to network, from supporting information management to online transaction processing (OLTP), to Online Analytical Processing (OLAP; the support for relational models is gradually improved, and the functions of the system are constantly enhanced.

How did these relational database products develop? Let's go slowly ......

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Page 1: Overview	Page 1: Support for Relational Models
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