... solution.
Identify the applications, application servers, and databases used in your environment.
Then, concentrating on the databases, try to get a feeling for how big and busy they
are. Consider ... definition.
Oracle Discoverer empowers end users to develop reports themselves. Once Oracle
Discoverer, which runs on an Oracle Application Server middle tier, has been
appropriately configured, ... another table. This is the basis of the many-to-one relationship. A
many-to-one relationship is a connection between two tables, where many rows in
one table refer to a single row in another table....
... system. Only if it proves
inappropriate should one resort to nonrelational structures. Applications where the
relational model has proven highly effective include virtually all Online Transaction ... be done next? Can Oracle help?
Attempt to normalize the data into two-dimensional tables,
linked with one-to-many relationships. If this really cannot be
done, consider other paradigms. Oracle ... another table. This is the basis of the many-to-one relationship. A
many-to-one relationship is a connection between two tables, where many rows in
one table refer to a single row in another table....
... 177
Using Conversion Functions and Conditional Expressions
Describe various types of conversion functions that are
available in SQL
5 228
Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion
functions
5 ... Application Server’s contribution to the Grid.
It is important to note that Oracle s commitment to international standards is
very strong. Applications running in the Oracle Application Server environment ... sessions against an Oracledatabase and invoke SQL commands.
Many organizations will not want to use a 3GL to develop database applications.
Oracle Corporation provides rapid application development...
... chapter:
■
Installing OracleDatabase 11g
■
New features in database creation
■
Database upgrade new features
■
Real Application Testing
Please refer to the OracleDatabase11g documentation for ... the installation options, new database components
available during installation, and role and privilege changes. I’ll also take you
through an actual OracleDatabase11g server installation, ... Oracle Corporation. For more information about the Oracle certification
exams, requirements for certification, or recertification, please visit Oracle s certification web site
(http://www .oracle. com/education/certification).
This...
... 140
Contents at a Glance
PART I
Critical Database Concepts
1 OracleDatabase11g Architecture Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Installing OracleDatabase ... Architectures and Options
Oracle provides a full array of tools for developing applications based onOracleDatabase 11g.
Many of the features introduced with OracleDatabase11g will be available ... own, Oracle will allocate space within a tablespace.
Tablespaces
A tablespace consists of one or more datafiles; a datafile can be a part of one and only one
tablespace. OracleDatabase11g creates...
... the Installation Options
Following are the important changes in the server installation options in Oracle
Database 11g.
■
The Oracle Configuration Manager, which gathers software configuration ...
Oracle Database 11g. I summarize the main changes to the DBCA in the following
sections.
New Database Configuration Options
Oracle Database11g contains quite a few changes in configuring databases ... automatically.
■
OracleDatabase Vault is an optional component when you select the Custom
Installation option.
The following components aren’t part of the OracleDatabase11g installation
(but were...
... configuration assistants will run. The Database Configuration
Assistant (DBCA) creates the database, whereas the Oracle Net Configuration Assistant verifies
your networking configuration. Connections ... environment
and Oracle version. At the conclusion of the Oracle software installation, the Database Configuration
Assistant (DBCA) will launch and will begin the process of creating a new database ... installation be performed after a basic database installation has been completed.
Using OUI to Install the Oracle Software
Use the Oracle Universal Installer (OUI) to install and manage all Oracle...
... in Oracle11g represents
unknown or missing data). Two vertical bars (
||
) are used as the concatenation operator.
Here are two examples:
Oracle1 1g’ || Database
results in
Oracle1 1gDatabase’
.
Oracle1 1g ... screen
Once you are in SQL*Plus, you can connect to another database or change your connec-
tion by using the
CONNECT
command, with this syntax:
CONNECT <username>/<password>@<connectstring>
The ... 11g, please refer to the Oracle Technology Network
at
www .oracle. com/technology/obe/11gr1_db /install/ dbinst/
windbinst2.htm
.
To install the sample schemas in an existing OracleDatabase 11g, ...
... Examples
Pattern Matches Does Not Match
%SONI_1 SONIC1
,
ULTRASONI21 SONICS1
,
SONI315
_IME TIME
,
LIME IME
,
CRIME
\%SONI_1 ESCAPE ‘\’ %SONIC1
,
%SONI91 SONIC1
,
ULTRASONIC1
%ME\_ _ _LE ESCAPE ‘\’ ... DISTINCT ‘Region ‘ || region_id
FROM countries
ORDER BY ‘Region ‘ || region_id;
‘REGION’||REGION_ID
Region 1
Region 2
Region 3
Region 4
Not only can you use the column name or column alias to sort ...
group functions that operate on one or more rows. I’ll discuss group functions in Chapter 3,
“Using Group Functions.”
In the following sections, I will review the numeric functions used on single...
... 242
Storing Address Configuration
245
Storing IP Address Configuration on Ubuntu
245
Storing IP Address Configuration on Fedora
246
Storing IP Address Configuration on SUSE
248
Configuring Routing
... 1
Starting Linux Command- Line
Administration
T
o unleash the full power of Linux, as a Linux administrator you will spend most of your time
typing commands on the Linuxcommand line, the so-called ... Reviewer
xv
Introduction
xvii
CHAPTER 1
Starting Linux Command- Line Administration
1
Linux Distributions
1
Linux History
1
Open Source
2
The First Distributions
2
Linux Turning Mainstream
...
... NUMBER (15, 2);
END;
Conditional and Sequential Control
PL/SQL includes conditional (IF, CASE) structures as well as
sequential control (GOTO, NULL) constructs.
Conditional Control Statements
There ... the block’s execution and exception sections.
Execution Optional in package and TYPE specifications; contains statements
that are executed when the block is run.
Exception Optional; describes error-handling ... database
trigger executes in its own transaction space. See the
Database Interaction” section for more information on
this pragma.
Database Interaction
|
37
lock_mode is one of the following: ROW SHARE,...
... Java.
Database drivers
All versions of Oracle include database drivers that allow applications to access
Oracle via ODBC (the Open DataBase Connectivity standard) or JDBC (the Java
DataBase Connectivity ... version are consistent. Since feature behavior is consistent
across platforms for implementations of these Oracle flavors, organizations can
migrate Oracle applications and databases easily among ... also enables Oracle to
focus on implementing new features only once across its product set.
Oracle Essentials
Oracle Database 11g
FOURTH EDITION
Rick Greenwald, Robert Stackowiak, and
Jonathan Stern
Beijing
ã
Cambridge
ã
Farnham
ã
Kửln
ã
Paris
ã
Sebastopol
ã
Taipei
ã
Tokyo
...
... LOS_ANG LONDON SINGAPO
-04:00 -07:00 +01:00 +08:00
Using Single-Row Conversion Functions
Single-row conversion functions operate on multiple datatypes. The
TO_CHAR
and
TO_NUMBER
functions have ... explicit conversion functions are covered in the “Using Single-Row
Conversion Functions” section later in this chapter.
Date-Function Overview
Table 2.3 summarizes the single-row date functions. ... Date Functions
91
Date-Format Conversion
National-language support (NLS) parameters and arguments allow you to internationalize
your Oracledatabase system. NLS internationalizations include...
... expression. This function
returns the numeric population standard deviation of the expression
x
. The population
standard deviation is calculated as the square root of the population variance ...
of each.
For the certification exam, concentrate more on the group functions
covered in the Part 1 discussion than those in the Part 2 discussion.
AVG
This function has the syntax
AVG([{DISTINCT ... Split-Merge on www.verypdf.com to remove this watermark.
156
Chapter 3
Using Group Functions
Group-Function Descriptions: Part 1
I divided the group functions into two sections. The group functions...