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The Language of SQL- P1 pdf

The Language of SQL- P1 pdf

The Language of SQL- P1 pdf

... OSis a registered trademark of Apple Inc. PostgreSQL is a trademark of PostgreSQL Inc and the Regents of the University of California.Allothertrademarksarethepropertyoftheirrespectiveowners.Allimages†CengageLearningunlessotherwisenoted.LibraryofCongressControlNumber:2010925128ISBN-13:978-1-4354-5751-5ISBN-10:1-4354-5751-XCourse ... Lisa The Language of SQLLarry RockoffPublisher and General Manager,Course Technology PTR:Stacy L. HiquetAssociate Director of Marketing:Sarah PanellaManager of Editorial Services:Heather ... The Language of SQLLarry RockoffCourse Technology PTRA part of Cengage LearningAustralia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United StatesFor Lisa The Language...
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The Language of SQL- P8 pdf

The Language of SQL- P8 pdf

... types of columns. The answer is to use a columnalias. The term alias means an alternate name. Here’s an example of how to use acolumn alias with the Microsoft SQL Server version of the previousSELECTstatement:SELECTOrderID,FirstName,LastName,FirstName ... Harper The fourth column now has a header. The keyword AS is used to specify a col-umn alias, which immediately follows the keyword.DATABASE DIFFERENCES: MySQL and Oracle The equivalent of the ... characterrather than numeric data, SQL is smart enough to know that the plus sign meansconcatenation and not addition. In this case, the concatenation expressed iscomposed of three terms: the FirstName...
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The Language of SQL- P9 pdf

The Language of SQL- P9 pdf

... ability to use functions, most of the data availablein spreadsheets would be of limited value. The same is true in the world of SQL.Your familiarity with some of the most commonly used SQL functions ... values together. We also discussed the related topic of columnaliases, which are often employed when using calculated fields.In the next chapter, we’ll be moving on to the subject of functions, ... . The Function of FunctionsSimilar to the calculations covered in the previous chapter, functions provideanother way to manipulate data. As was seen, calculations involve multiple fields,either...
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The Language of SQL- P20 pdf

The Language of SQL- P20 pdf

... customers whose name contains the word ‘‘bank.’’In the second situation, we will extend the idea of inexact matches to include the possibility of matching by the sound of a word or phrase. For instance, ... '%LOVE%'85One final note about the IN operator. There is a second way to use the IN,which is substantially different from the syntax just discussed. In the secondformat of the IN operator, an entire ... the Productstable, they are initially not given any value in the Weight column. They areinitially given a value of NULL, and a user of the system later assigns a weight to the product.Let’s...
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The Language of SQL- P22 pdf

The Language of SQL- P22 pdf

... sort of code for the sound of the phrase. The first character is always the first letter of the phrase. In this case, the first character is S because both Smith and Smythebegin with an S. The ... are calculated from an analysis of the sound of the rest of the phrase. Internally, the function first removes all vowels and the letter Y. So, the function takes the MITH from SMITH and converts ... ('Smith') AS 'Sound of Smith',SOUNDEX ('Smythe') AS 'Sound of Smythe' The result is:Sound of Smith Sound of SmytheS530 S530 The SOUNDEX function always returns...
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The Language of SQL- P38 pdf

The Language of SQL- P38 pdf

... notice that the VALUES keywordis used as a prefix to lists of values to be inserted into the table. The statementlists each row of data in a separate set of parentheses. Virginia Jones of Ohio ... take us completely out of the realm of data retrieval and move us squarely into issues surrounding the need to updatedata. The business of maintaining data doesn’t present the same analytic possi-bilities ... begin with the insert and delete functions and then conclude with updates.Modification Strategies The mechanics of modifying data are fairly straightforward. However, the nature of the process...
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The Language of SQL- P2 pps

The Language of SQL- P2 pps

... The AND Operator 72 The OR Operator 73Using Parentheses 73Multiple Sets of Parentheses 75 The NOT Operator 76 The BETWEEN Operator 79 The IN Operator 80Boolean Logic ... area of expertise is with data warehousesystems and reporting tools. He recently developed a suite of BI tools for ASA PSoftware, a subsidiary of Dell Inc. He holds an MBA from the University of Chicago, ... or to contact the author, pleasevisit LarryRockoff.com.vContentsIntroduction . . xiiChapter 1 Relational Databases and SQL 1 Language and Logic 1SQL Defined. . . 3Microsoft SQL Server,...
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The Language of SQL- P3 pot

The Language of SQL- P3 pot

... the introduction of any book they happen to read and then proceed immediately to the first real chapter.With that fact firmly in mind, we will only cover relatively unimportant materialin the ... Appendix D, for a description of the files available on the companionWeb site. These files list all SQL statements and provide all data shown in the book.You may download the companion Web site files ... 222Contentsxfor nothing at all since the language is derived from an old language from IBMcalled sequel, which did not stand for structured query language. At any rate, the introduction is done. And...
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The Language of SQL- P4 pptx

The Language of SQL- P4 pptx

... that time.Generally speaking, there are three major components of the SQL language. The first is called DML, or Data Manipulation Language. This module of the language allows you to retrieve, ... been The Logic of SQL. This is because, like all computer languages, the language of SQL has much more to do with cold, hard logic than with Englishvocabulary.Nevertheless, there is a unique language- based ... Database orMySQL. The syntax for Microsoft SQL Server will appear in the main text. The heading of the box will indicate if the note is for MySQL, Oracle, or both.Microsoft SQL Server is available...
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The Language of SQL- P5 ppt

The Language of SQL- P5 ppt

... stored in any number of tables. The term relational is used to indicate that the tables are related to eachother. For example, let’s take the simple case of a database consisting of only twotables: ... and the data they contain. The common custom is to display a table as a grid of rows and columns. Each rowrepresents a record in the table. Each column represents a field in the table. The top ... column in the Orders tablepoints to a corresponding row in the Customers table. Looking at the fourth row of the Orders table, you’ll notice that the CustomerID column has a value of 3.This...
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