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SQL: Visual QuickStart Guide by Chris Fehily

By Chris Fehily

Книга SQL: visible QuickStart advisor (3rd variation) SQL: visible QuickStart advisor (3rd Edition)Книги SQL / MySQL Автор: Chris Fehily Год издания: 2008 Формат: pdf Издат.:Peachpit Press Страниц: 483 Размер: 4,5 ISBN: 978-0-321-55357-7, 0-321-55357-8 Язык: Английский0 (голосов: zero) Оценка:SQL is a regular interactive and programming language for querying and enhancing facts and handling databases. This task-based educational and reference consultant takes the secret out studying and making use of SQL. After going over the relational database version and SQL syntax within the first few chapters, veteran writer Chris Fehily instantly launches into the initiatives that may get readers ok with SQL. as well as overlaying all of the SQL fundamentals, this completely up-to-date reference encompasses a wealth of in-depth SQL wisdom and serves as a very good reference for more matured clients.

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4 This grid represents an actual (not abstract) table, shown as it usually appears in database software and books. This table has 3 columns, 4 rows, and 3 ✕ 4 = 12 values. The top “row” is not a row but a header that displays column names. 5 Rows and columns are said to be unordered, meaning that their order in a table is irrelevant for informational purposes. 4. Columns Columns in a given table have these characteristics: Each column represents a specific attribute (or property) of the table’s entity type.

This book covers Oracle 11g but also includes tips for 10g, 9i, and 8i. The version of Oracle that you’re running is displayed in the initial “Connected to” message that appears when you log on to SQL*Plus (or run the query SELECT banner FROM v$version;). To run SQL programs, use the SQL*Plus (sqlplus) command-line tool. ■ To open a command prompt in Windows, choose Start > All Programs > Accessories > Command Prompt. 17 Oracle ✔ Tip Chapter 1 To use the sqlplus command-line tool interactively: 1.

Login_id is your user name. osql will prompt you for your password. ■ If SQL Server is running on a remote network computer, add the option -S server to specify the SQL Server instance to connect to. Ask your DBA for the connection parameters. ) 13 Microsoft SQL Server ■ Chapter 1 SQL Server 2005/2008 To run SQL programs in SQL Server 2005 and 2008, use the SQL Server Management Studio graphical tool or the sqlcmd command-line tool. To use SQL Server Management Studio: 1. On the Windows desktop, choose Start > All Programs > Microsoft SQL Server > SQL Server Management Studio.

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