SQL VISUAL QUICKSTART GUIDE- P38 pdf

... . 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

Ngày tải lên: 05/07/2014, 05:20

... 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...

Ngày tải lên: 05/07/2014, 05:20

... 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...

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... determine which version of PostgreSQL you’re running, run the PostgreSQL command-line command psql -V or run the query SELECT VERSION(); . To run SQL programs, use the psql command-line tool. ✔ Tip ■ To ... 1.37). 30 Chapter 1 PostgreSQL Figure 1.37 The results of a SELECT statement in psql interactive mode. To use the psql command-line tool in script mode: 1. At a command prompt, ty...

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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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... blank database named books . 2. Run an SQL script that creates tables within books and populates them with data. Listing 2.1 shows a standard (ANSI) SQL script that creates the sample-database tables ... Access. 57 The Relational Model Creating the Sample Database Listing 2.1 This standard SQL script, books_standard .sql , creates the tables in the sample database books and populat...

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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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... 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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... 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...

Ngày tải lên: 05/07/2014, 05:20

... authors ORDER BY substr(phone, length(phone)-3); This query works for Oracle, DB2, MySQL, and PostgreSQL. In Microsoft SQL Server, use substring(phone, len(phone)-3, 4) . In Microsoft Access, use Mid(phone, ... beyond the scope of this book. All SQL implementa- tions let you to use ORDER BY in a SELECT statement (because the DBMS builds a cursor invisibly). Standard SQL also lets O...

Ngày tải lên: 05/07/2014, 05:20

... sensitive (‘A’ & ‘a’). Microsoft Access, Microsoft SQL Server, DB2, and MySQL perform case-insensitive comparisons by default. Oracle and PostgreSQL perform case- sensitive comparisons by default. ... #2001-01-01# . In Microsoft SQL Server and DB2 date literals, omit the DATE keyword. To run Listing 4.20, change the date in the WHERE clause to ‘2001-01-01’ . In older PostgreSQL ve...

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... available SQL Server SET SHOWPLAN_TEXT ON Oracle EXPLAIN PLAN DB2 EXPLAIN or db2expln MySQL EXPLAIN PostgreSQL EXPLAIN SQL Tuning After you learn the basics of SQL, your next step is to tune your SQL ... Command Access Not available SQL Server SET STATISTICS TIME ON Oracle SET TIMING ON DB2 db2batch MySQL The mysql command-line utility prints execution times by default. PostgreSQL...

Ngày tải lên: 05/07/2014, 05:20

... string ( ‘’ ) as null; see the DBMS Tip in “Nulls” in Chapter 3. MySQL enforces foreign-key constraints through InnoDB tables; search MySQL documentation for foreign key. InnoDB FOREIGN KEY syntax ... ACTION generates an error on a foreign- key violation. This action is the default. ■ Microsoft SQL Server doesn’t support the data type DATE . To run Listing 11.10, change the data type of ....

Ngày tải lên: 05/07/2014, 05:20