The Language of SQL- P49 ppsx
The Language of SQL- P49 ppsx
... Oracle.doc
These three files list all SQL statements in the book for each of the three databases
covered. Additionally, these files contain SQL scripts that allow you to create all
the data used in the ... running the setup scripts, you can execute any
statement in the book and see the same output shown in the book.
Specific instructions on how to execute the setup scripts...
The Language of SQL- P13 ppsx
... However, if the same list
were sorted alphabetically, then you could quickly locate the desired customer.
The idea of sorting data alphabetically applies to many situations, even when the
data isn’t ... to emphasize the fact that the sort is ascending, as
opposed to descending.
Sorting in Descending Order
The DESC keyword sorts in an order opposite to ASC. Instead of ascendi...
The Language of SQL- P21 ppsx
... space has been inserted between the phrase LOVE and the percent
(%) wildcards on either side. This ensures that there is at least one space on
either side of the word. The data brought back from this ... Says I Love You
Wildcards
The percent (%) symbol is the most common wildcard used with the LIKE
operator. However, there are a few other possibilities. These include the und...
The Language of SQL- P33 ppsx
... Calculated Column
The final general use of subqueries is as a calculated column. Let’s say we would
like to see a list of customers, along with a count of the number of orders they
have placed.
This ... format, the IN operator merely lists a number of values in parentheses.
There is also a second format for the
IN, one in which an entire SELECT state-
ment is inserted inside...
The Language of SQL- P36 ppsx
... parentheses on the
CREATE
PROCEDURE
line. Then each SQL statement listed between the BEGIN and END keywords
must have a semicolon at the end of the statement. The dollars signs are written after the
END
keyword ... a
specification
and a
body.
The specification component specifies how to communicate with the body
component. The body component contains the SQL statements,...
The Language of SQL- P40 ppsx
... consisting of the first line, indicates that the update is to be done on
the Customers table.
The second section of the statement specifies how the State column is to be
updated. The update is ... indexes.
Data Definition Language
Way back in Chapter 1, we mentioned that there are three main components of
the SQL language: DML (Data Manipulation Language) , DDL (Data...
The Language of SQL- P42 ppsx
... to be. Another obvious factor is the existence of
current data. Very few organizations have the luxury of designing their databases
in a vacuum, apart from what already exists.
195
■ The third ... not
yet addressed the basic issue of how to design a database in the first place. The
main questions to address are the following:
■ How shou ld data be organized into a set of...
The Language of SQL- P1 pdf
... OS
is 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:2010925128
ISBN-13:978-1-4354-5751-5
ISBN-10:1-4354-5751-X
Course ... Lisa
The
Language of SQL
Larry Rocko...
The Language of SQL- P2 pps
... The AND Operator 72
The OR Operator 73
Using Parentheses 73
Multiple Sets of Parentheses 75
The NOT Operator 76
The BETWEEN Operator 79
The IN Operator 80
Boolean Logic ... area of expertise is with data warehouse
systems and reporting tools. He recently developed a suite of BI tools for ASA P
Software, a subsidiary of Dell Inc. He holds an MBA from the University of
Chi...
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 material
in the ... Appendix D, for a description of the files available on the companion
Web site. These files list all SQL statements and provide all data shown in
the book.
You may download the co...
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