SQL VISUAL QUICKSTART GUIDE- P10 docx

... standard SQL date DATE ‘2006-03-17’ is equivalent to the Access date #2006-03-17# , for example. In Microsoft SQL Server, omit the data type name prefix from datetime literals. The standard SQL ... example. 79 SQL Basics Datetime Types Table 3.15 DBMS Datetime Types DBMS Types Access date/time SQL Server datetime , smalldatetime Oracle date , timestamp DB2 date , time , timest...

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... Blame My Mother P03 ✔ Tips ■ See also “Specifying a Foreign Key with FOREIGN KEY ” in Chapter 11. ■ SQL lets you specify the referential-integrity action that the DBMS takes when you attempt to update

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... the SQL standard. MySQL has ansi mode, for example, and Microsoft SQL Server has SET ANSI_DEFAULTS ON . 65 SQL Basics SQL Standards and Conformance SQL Syntax Figure 3.1 shows an example SQL ... noted, the SQL elements in this book are part of SQL- 92 as well as SQL: 1999 and SQL: 2003. The lowest level of SQL- 92 conformance is called Entry (not Core). Your programs shoul...

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... Attribute Standard SQL IDENTITY Access autonumber , replication id SQL Server uniqueidentifier , identity Oracle rowid , urowid , sequences DB2 Identity columns and sequences MySQL auto_increment attribute PostgreSQL serial , ... searching ◆ Enumerated (enum) values from a specified list 83 SQL Basics Other Data Types User-Defined Types Microsoft SQL Server, Oracle, DB2, and Postg...

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... Microsoft Access has Len() . Microsoft SQL Server has DATALENGTH() . Oracle has LENGTHB() . DB2 has LENGTH() . MySQL has BIT_COUNT() and OCTET_ LENGTH() . PostgreSQL has BIT_LENGTH() and OCTET_LENGTH() . Oracle ... ‘>’ ‘<’ + LTRIM(RTRIM(‘ AAA ‘)) + ‘>’ SQL Server’s LTRIM() and RTRIM() functions remove spaces but not arbitrary trim_chars characters. You can nest and chain...

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... . 456 Working with Hierarchies . . . . . . . . . . . . . . . . . . . 458 Index 465 Visual QuickStart Guide SQL, Third Edition Chris Fehily Peachpit Press 1249 Eighth Street Berkeley, CA 94710 510/524-2178 510/524-2221 ... 0-321-55357-8 987654321 Printed and bound in the United States of America Peachpit Press VISUAL QUICKSTART GUIDE SQL Third Edition Chris Fehily

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... standard SQL that the resulting languages— Transact -SQL, PL /SQL, and SQL PL, respec- tively—can be considered to be separate languages in their own right, rather than just supersets of SQL. One ... i.1). “ISO/IEC SQL isn’t a commonly used term, so I’ll stick to the better-known “ANSI SQL name throughout this book. This book is based on the 2003 SQL standard, so you should consider...

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... or DBMS-specific SQL to import and export SAS data via PROC SQL or SAS/Access. A SAS dataset is equivalent to an SQL table, an observation to an SQL row, and a variable to an SQL column. You can ... Running SQL Programs In this chapter, I’ll describe how to run SQL programs on these DBMSs: ◆ Microsoft Access 2007 ◆ Microsoft SQL Server 2008 ◆ Oracle 11g ◆ IBM DB2 9.5 ◆ MySQL...

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... Tip. ◆ SQL Server 2005/2008’s SQL Server Management Studio Query Editor replaces 2000’s SQL Query Analyzer. ◆ SQL Server 2005/2008’s sqlcmd command-line tool replaces 2000’s osql . The sqlcmd tool ... SELECT statement in sqlplus script mode. SQL Server 2000 To run SQL programs in SQL Server 2000, use the SQL Query Analyzer graphical tool or the osql command-line tool. To...

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... www.mysql.com . This book covers MySQL 5.1 but also includes tips for earlier versions, back to 4.0. To determine which version of MySQL you’re running, run the MySQL command- line command mysql ... screen. To use the mysql command-line tool in script mode: 1. At a command prompt, type: mysql -h host -u user -p -t ➞ dbname < sql_ script host is the host name, user is your MySQL user...

Ngày tải lên: 05/07/2014, 05:20