oracle database concepts ppt
Oracle Database Concepts
Ngày tải lên :
22/10/2013, 15:15
... upgrading a previous
release of Oracle
■
Oracle Database Administrator's Guide for information about how to administer
the Oracle database server
■
Oracle Database Application Developer's ... information
about developing Oracle database applications
■
Oracle Database Performance Tuning Guide for information about optimizing
performance of an Oracle database
■
Oracle Data Warehousing Guide ... Accessibility xlv
Part I What Is Oracle?
1 Introduction to the Oracle Database
Oracle Database Architecture 1-1
Overview of Oracle Grid Architecture - XXX 1-2
Oracle Technologies that Enable the...
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Tài liệu Oracle Database Advanced Security Administrator''''s Guide pptx
Ngày tải lên :
10/12/2013, 13:15
... features in Oracle Advanced Security:
■
Oracle Database 10g Release 1 (10.1) New Features in Oracle Advanced Security
■
Oracle9 i Release 2 (9.2) New Features in Oracle Advanced Security
Oracle Database ... an Oracle Database Server 6-2
Task 3: Extract a Service Table from Kerberos 6-3
Task 4: Install an Oracle Database Server and an Oracle Client 6-4
Task 5: Install Oracle Net Services and Oracle ... top
level ORACLE_ HOME directory. There is a
top level directory called ORACLE_ BASE
that by default is C: \oracle. If you
install the latest Oracle release on a
computer with no other Oracle software
installed,...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P4 ppt
Ngày tải lên :
14/12/2013, 15:15
... you to internationalize
your Oracle database system. NLS internationalizations include date representations, char-
acter sets, alphabets, and alphabetical ordering.
Oracle will implicitly or automatically ... to a numeric or datetime value. Character datatypes in Oracle 11g are
CHAR, VARCHAR2, NCHAR, NVARCHAR2, and CLOB. Numeric datatypes in Oracle
95127c02.indd 101 2/18/09 6:46:42 AM
Please purchase ... argument will tell
Oracle what format the input given in the first argument should be. The third argument
may be to specify an NLS string. You can use NLS parameters to tell Oracle what character...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P5 ppt
Ngày tải lên :
14/12/2013, 15:15
... use to calculate space usage in a database.
The
DBA_SEGMENTS
dictionary view shows the segments allocated in the database each
table or index created in the database must have at least one ... PDF Split-Merge on www.verypdf.com to remove this watermark.
Chapter
3
Using Group
Functions
ORACLE DATABASE 11g:
SQL FUNDAMENTALS I EXAM OBJECTIVES
COVERED IN THIS CHAPTER:
Reporting Aggregated ... option
is useful only if you are running the Oracle Parallel Server and have multiple instances.
LANGUAGE
ÛN
returns the language, territory, and database character set. The delimiters are
an...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P6 pptx
Ngày tải lên :
14/12/2013, 15:15
... execute a join of three or more tables, Oracle takes these steps:
1.
Oracle joins two of the tables based on the join conditions, comparing their columns.
2.
Oracle joins the result to another table, ... Split-Merge on www.verypdf.com to remove this watermark.
Chapter
4
Using Joins and
Subqueries
ORACLE DATABASE 11g:
SQL FUNDAMENTALS I EXAM OBJECTIVES
COVERED IN THIS CHAPTER
Displaying data from ...
can nest any number of such queries; Oracle does not have a limit. Using the inline view, you
can write queries to find top-n values. This is possible because Oracle allows an
ORDER BY
clause...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P7 ppt
Ngày tải lên :
14/12/2013, 15:15
... This support is germane only to
multiuser databases, where one database session can change (and commit) data that is being
read by another session.
Oracle always uses statement-level consistency, ... Mechanism
Locks are implemented by Oracle Database to prevent destructive interaction between
concurrent transactions. Locks are acquired automatically by Oracle when a DML state-
ment is executed; ... sections.
Consistency and Transactions
Data consistency is one of the key concepts underlying the use of transaction-control state-
ments. Understanding Oracle s consistency model will enable you to employ transaction...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P9 ppt
Ngày tải lên :
14/12/2013, 15:15
... 1 |
| 2 | INDEX FAST FULL SCAN| INVENTORY_IX | 1112 |
Oracle used the
INVENTORY_IX
index to get the result. You can see here that Oracle did not
read the table to get the result; only the ... unique indexes, each column value entry is unique. Oracle guarantees that the
combination of all index column values in the composite index is unique. Oracle returns an
error if you try to insert ... high- to medium-cardinality columns and do support
row-level locking.
Know how Oracle will resolve table references. Oracle will first search for a table or view
that matches the referenced name....
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P10 pptx
Ngày tải lên :
14/12/2013, 15:15
... Oracle Database 11g Components and Architecture
The Oracle Instance
An Oracle database instance consists of Oracle s main memory structure, called the system
global area (SGA), and several Oracle ... the Oracle
documentation’s Oracle Database Installation Guide 11g Release 1 for Linux,
specifically, Chapter 2, Oracle Database Pre-installation Requirements.” As
mentioned earlier, all Oracle ... Introducing Oracle Database 11g Components and Architecture
Installing Oracle 11g
One of your duties as an Oracle DBA is to install and configure the Oracle 11g software on
the server so that a database...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P13 ppt
Ngày tải lên :
14/12/2013, 15:15
...
Creating an Oracle 11g Database
Use Oracle- Managed Files
If you choose Use Oracle- Managed Files, you let the Oracle Database manage the operating-
system files comprising the database. As a ... standard
database installation (see Figure 9.14). These features are the Oracle JVM, Oracle XML
DB, Oracle Multimedia, and Oracle Application Express.
FIGURE 9.14 DBCA standard database components
What ...
/var/opt/
oracle/ oratab
file on Solaris). When databases are created on this server, this file will have
information about the database and which
oracle
home directory is used by the database.
If...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P14 pptx
Ngày tải lên :
14/12/2013, 15:15
... to start up an Oracle Database. Understand how to use the database tools
to start up an Oracle Database.
Describe the database- shutdown modes. Understand the various modes of database
shutdown. ... what each database- shutdown option is and when you might use
the option.
Be able to shut down an Oracle Database. Understand how to use the database tools to
shut down an Oracle Database.
Know ... the fully qualified name of a database?
A. ORACLE SID
B. Global database name
C. Global identifier
D. Oracle global name
E. ORACLE ID
9. Which of the following Oracle accounts is not automatically...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P15 ppt
Ngày tải lên :
14/12/2013, 15:15
... Tablespaces
543
UNDOTBS1 C: \ORACLE\ ORADATA\ORA11\UNDOTBS01.DBF 51200
SYSTEM C: \ORACLE\ ORADATA\ORA11\SYSTEM01.DBF 460800
EXAMPLE C: \ORACLE\ ORADATA\ORA11\EXAMPLE01.DBF 153600
INDX C: \ORACLE\ ORADATA\ORA11\INDX01.DBF ... certification
exam. To learn more about partitioning, read Oracle 11g Administrators Guide” in the
Oracle documentation (
http://tahiti .oracle. com
).
Oracle allocates a segment to the table when the table ... TABLESPACE receivables ONLINE;
Using the Oracle Managed Files Feature
The Oracle Managed Files feature is appropriate for smaller nonproduction databases or
databases on disks using Logical Volume...
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