sql for dummies 8th edition

... Trademarks: Wiley, the Wiley logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, Making Everything Easier, ... service, I fully expect it to change quickly For that reason I’ve created this portable edition to cover just enough and yet allow for some flexibility for when the service does change Spend some ... books If this book does have technical updates, they will be posted here: www.dummies.com/go/googleplusfordummies portableedition Trang 19Chapter 1Leaping into Google+ In This Chapter ▶ Figuring out

Ngày tải lên: 24/04/2014, 15:15

... communication projects For example, if you’re asking for speechwriting assistance, know the length of time allocated for your presentation If you’re requesting materials for a sales presentation, ... look for your company  When the budget for a single marketing effort exceeds $10,000 If you’re putting significant dollars behind a direct-mail program, brochure, adcampaign, or marketing effort, ... materials  When your annual budget for marketing communications reaches $50,000 Add up what you’ve budgeted for brochures, advertising, direct mail, and other outreach efforts If the total exceeds $50,000,

Ngày tải lên: 21/06/2014, 11:20

... advertising support in the form ofshared costs for the media placements  Ask your station to add your logo and tag line In return for your ad buy,they will probably perform the service for free or close ... only for products with major sales potential foryour business and for which your business is the exclusive regional rep-resentative  The ads are likely to be of higher quality than you could afford ... a tag teameffort: You use mass media advertising to build awareness, desire, and per-ceived value for your products and then use one-to-one marketing to call forthe order and to form the basis

Ngày tải lên: 21/06/2014, 11:20

... www.constantcontact.comfor information and a trial offer)  Include a link to your Web site If your newsletter refers to a specific part of your site — for example, the page for a new product — ... rackssuch as those in visitor welcome centers, for example, contract with adistribution service for regularly scheduled delivery and supply mainte-nance For the names of services in your area, contact ... help? Tally the costs and be sure you can afford to commit to the project for at least a full year Writing and designing newslettersHere is good news for small-budget marketers: The most effective

Ngày tải lên: 21/06/2014, 11:20

... with company background information (see “Boilerplate information” in the preceding section) • Close your e-mail with your contact information, in this format: CONTACT INFORMATION: Contact Person’s ... by mail or hand delivery, enclose photos in the form of prints, slides, or on disk For prints, submit in a 5-x-7-inch or 8-x-10-inch glossy format For illustrations, charts, or otherartwork, submit ... submit artwork beforeattaching your file to an e-mail message When writing the e-mail, type your captioninto the subject line (for example, Photo: Small Business Marketing For Dummies book cover)

Ngày tải lên: 21/06/2014, 11:20

... DBMS? 16 The Scoop on SQL and PL/SQL 16 The purpose of SQL and PL/SQL 17 The difference between SQL and PL/SQL 18 What’s new in Oracle SQL and PL/SQL? 18 What Is PL/SQL Good For? 19 Using database ... Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, and related trade dress ... Trang 2by Michael Rosenblum and Dr Paul DorseyPL/SQL FOR Trang 4by Michael Rosenblum and Dr Paul DorseyPL/SQL FOR Trang 5Oracle ® PL/SQL For Dummies ®Published by Wiley Publishing, Inc. 111 River

Ngày tải lên: 08/08/2014, 20:21

... supports a forum to publicize technical informationcalled the Oracle Technology Network (OTN) The OTN contains a wealth ofinformation for Oracle professionals Because PL/SQL is the language ofOracle ... RapidSQLhas many features that might just get in the way and be confusing for thePL/SQL beginner However, RapidSQL does include everything you need to maximize your productivity For more information, ... targeted at database developers With SQL Developer, youcan browse database objects, run SQL statements and SQL scripts, and editand debug PL/SQL statements The Oracle SQL Developer interface is shown

Ngày tải lên: 08/08/2014, 20:21

... database level, triggers fire for each event for allusers At the schema level, triggers fire for each event for a specific user Although system triggers are very useful for database administrators ... substituted for “)” to continue 73 Chapter 3: Laying the Groundwork: PL/SQL Fundamentals Trang 5Here’s what you see in Listing 3-13:➞2 A common problem is forgetting to define the datatype for an ... execute next PL/SQL is no different in this regard PL/SQLsupports IF THEN, CASE, and LOOP statements If you’re an experienced programmer, you can probably just skim this ter for the PL/SQL-specific

Ngày tải lên: 08/08/2014, 20:21

... cursors for updates and shortcuts 䊳Using PL/SQL functions in SQL The main reason to use PL/SQL as a programming language is that it worksreally well with SQL PL/SQL works better with SQL than ... cursor to loop through thisinformation is one of the main reasons for using PL/SQL ⻬ How cursors allow PL/SQL to retrieve information from an Oracle database: PL/SQL’s ability to easily and efficiently ... find out ⻬ How to integrate SQL into PL/SQL with cursors: Cursors are one of the most efficient portions of the PL/SQL language The ability to use SQL todefine a set of information and then create

Ngày tải lên: 08/08/2014, 20:21

... PL/SQL code are Toadand SQL*Navigator, both developed by Quest Software For many years,Oracle seemed content not to compete in this market However, Oracle hasrecently released SQL Developer (formerly ... better.perfor-⻬ As you write any function, ask yourself, “Will it be used in SQL or not?” If so, verify that SQL works with the datatypes you’re passing in and out ⻬ Verify that you are not performing ... could have on overall execution? It can’t In terms of performance, using functions in SQL is risky With functions inSQL, the whole idea of SQL optimization gains another dimension; namely,decreasing

Ngày tải lên: 08/08/2014, 20:21

... guidelines for creating a uniform SQL code base Using a new lineAll the main parts of a SQL statement (for example, SELECT, FROM, WHERE,INSERT, and so on) and phrases (for example, GROUP BY, ORDER ... storage format, constraints, and range limitations of constants, parameters, and variables In addition toall the datatypes available in SQL (for example, NUMBER, VARCHAR2, DATE,and so on), PL/SQL ... • Numeric datatypes encompass information that can be represented as digits • Character datatypes are used for textual information (up to 32K). • Date/time information is specified by using a

Ngày tải lên: 08/08/2014, 20:21

... to create entirely new types Some user-defined types are for PL/SQL only,and some can be used in both PL/SQL and SQL You can create PL/SQL datatypes in the declaration portions of procedures,functions, ... common use for BFILE is to provide aconvenient way of referencing objects maintained outside the database (forexample, a collection of photos) Using the example of an online shopping catalog for electronic ... advanced applica-tion logic For example, you can implement a search or indexing routine forall large text files loaded in the database exactly the same way as you wouldfor regular strings, as shown

Ngày tải lên: 08/08/2014, 20:21

... accounts logi-Performing this sample EFT involves three SQL DML statements: one to debityour account, one to credit the receiving account, and one to record the trans-action for your monthly ... you run this code, you get the following result: SQL> update emp set sal=10000 where empno=7900; Trang 13SQL> rollback;Rollback complete SQL> select sal from emp where empno=7900; SAL ... SERIALIZABLE (line 10) in the following code: SQL> delete from audit_emp; PL/SQL procedure successfully completed The result is indeed a surprise For the Oracle, there is no difference between

Ngày tải lên: 08/08/2014, 20:21

... the way that both SQL and PL/SQL are executed There is no guarantee that code that works well in one release will perform the sameway in a different release It is also essential for the test system ... Retrieving information with too many cursors: Frequently, when informa-tion must be retrieved from multiple tables, instead of writing a single SQLstatement that will return information from ... operations: You can use SQL bulk operations to replace or modify whole areas of PL/SQL code When you need to update lions of rows in the database by using PL/SQL, traditional PL/SQL codingtechniques

Ngày tải lên: 08/08/2014, 20:21

... enforce a number of rulesrelated to the salaries and commissions of employees, you might write: create or replace trigger emp_biubefore insert or update on empreferencing new as new old as oldfor ... condition groups in theses, not only in PL/SQL but in SQL, too Remembering this could save youhours of debugging afterward The following is an example of good syntax forparen-a situparen-ation when you ... In some cases, you can replace regular loops with SQL Listing 16-4 could berewritten, as shown in Listing 16-5 Listing 16-5: A SQL Replacement for Regular Loops function f_checkDeptLimit_yn (i_deptNo

Ngày tải lên: 08/08/2014, 20:21

... feature not only make it easier for each user to keep data private,but helps the layout conform to what Red Hat uses in Fedora, making iteasier for this book to make sense for you 21 Click Next to proceed. ... you need to change your BIOS sothat it looks at the CD-ROM drive before your hard drive(s) (SeeChapters 2 and 3 for more information.) If your computer sees the CDbut seems to have problems launching ... notes for walking through thisprocess:  Under Regional Settings, Locale is just for your language issues It doesn’thave anything to do with your time zone and whatnot Also, unless youknow for

Ngày tải lên: 09/08/2014, 04:21

... choose Format You may have toclick the Floppy item first to open its contents before you can format it Typically, the defaults are what you’ll want to choose If you want to formatthe disks for Linux, ... they come formatted for Windows) If the item is a blankslate, no computer can use it for anything You can actually just use the item in Windows format with no problem, or you can format — change ... 18Formatting DisksA floppy disk, USB keychain, and any other small(ish) storage device often comes as a blank slate or formatted for Windows or Macintosh use (most often these days they come formatted

Ngày tải lên: 09/08/2014, 04:21

... mozilla)  Flash plugin: swfdec-mozilla (search on mozilla) For RealPlayer and browser support for Java, however, see the Fedora tion for how to add these items by hand sec-Sassing with SuSESuSE’s ... in program descriptions for your keywords. 3 Enter your keyword in the Search text box. For example, maybe you want to see what SuSE offers involving the quicktimemovie format 4 Click Search. ... software revolves around the Internet for file exchange, e-mail, andforum or newsgroup discussions Make sure that you and other users of yourLinux system are comfortable with the Web sites that are

Ngày tải lên: 09/08/2014, 04:21

... more, you can move only forward through the file and see only ascreen’s worth of information at a time You can’t back up To use either lessor more, the format is similar to the format used with the ... spreadsheet), Draw (diagramsand figures), Impress (for presentations), Math (a word processor for writingmathematical formulas), and Writer (for word-processing) After you figure out how to use ... a mathematical formula, Yes or an applet, for example) at the cursor’s current location Show Draw Access the many OpenOffice.org drawing utilities YesFunctions Show Form Build forms with their

Ngày tải lên: 09/08/2014, 04:21

... file format isn’t supported. Fortunately, you are told here what format this is (for example, mpeg). 4. If your software doesn’t support the file’s format, install a program that does. For ... support for individual games can be spotty, so be sure to check the Web site before you invest in this product Also, be sure to make use of the help forums! Chapter 19: Windows-Only Media Formats ... and find how to add RealPlayer. For ASX and ASF, which are Windows Media Player formats, use Chapter 12 to install mplayer-plugin or Kaffine, or see Chapter 19 for products that let you run Windows

Ngày tải lên: 09/08/2014, 04:21