Sql In A Nutshell. A Desktop Quick Reference - Tapa blanda

Sinopsis

SQL (Structured Query Language) is a standardized query language for maintaining and querying database information. Historically, SQL has been the choice for database management systems running on minicomputers and mainframes. Increasingly, however, SQL is being adapted to PC systems that support distributed databases and allow users on a local-area network to access the same data simultaneously. Although there are different dialects of SQL, it is the closest thing to a standard query language that currently exists. SQL in a Nutshell is a practical and useful command reference to the latest release of the Structured Query Language standard (SQL99), which assists readers in learning how their favorite database product supports any standard SQL command. This book presents each of the SQL commands and describes its use in both commercial (Microsoft SQL Server 2000 and Oracle 8i) and open source (MySQL, PostgreSQL 7.0) implementations. Each command reference includes the command syntax (by vendor, if the syntax differs across implementations), a description, and informative examples that illustrate important concepts and uses. SQL in a Nutshell is more than a convenient reference guide for experienced SQL programmers, analysts, and database administrators. It's also a great learning resource for novice and auxiliary SQL users, such as system administrators, users of packaged client/server products, and consultants who need to be familiar with the various SQL dialects across many platforms.

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