Tài liệu Virtualizing Oracle Database 10g/11g on VMware Infrastructure docx
Tài liệu Virtualizing Oracle Database 10g/11g on VMware Infrastructure docx
... found in Appendix B.
VMware Inc. Virtualizing Oracle Database 10g/11g on VMware Infrastructure
Technical White Paper 22
Configuration 3 – Oracle Database on VMware Infrastructure Using
Blended ... database components.
Figure 7. Oracle Database on VMware Infrastructure Using a Pure NFS Storage
Design
VMware Inc. Virtualizin...
Tài liệu Pro Oracle Database 11g RAC on Linux docx
... applications
is not too different than designing efficient single-instance Oracle database applications. An application
that scales well in a non-clustered configuration is likely to scale well on ... to 30 standby databases can now form part of a Data Guard configuration. A
cascaded standby database configuration in which a standby database passes on redo to another
standby...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P4 ppt
... them on your own.
Conversion-Function Overview
Table 2.5 summarizes the single-row conversion functions. I will cover each of these func-
tions in the “Conversion-Function Descriptions” section.
TABLE ... TIME ZONE
value
TO_YMINTERVAL
Converts a character string value to an interval year to month literal
UNISTR
Converts UCS2 Unicode
Conversion-Function Descriptions
The conversion functions...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P5 ppt
... session time, and session time zone offset
B. Session date and session time
C. Session date and session time zone offset
D. Session time zone offset
13. Using the SALESPERSON_REVENUE table described ... where the session is connected.
SESSION_USER
Returns the database username for the current session.
SESSION_USERID
Returns the numeric database user ID for the current session.
SESSIONID
R...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P6 pptx
... first join condition can reference columns from only the first and
second tables; the second join condition can reference columns from the first, second, and
third tables; and so on. Consider the ... follows:
SELECT regions.region_id, region_name, countries.country_id, country_name,
location_id, city
FROM regions, countries, locations
WHERE regions.region_id = countries.region_id
AND countr...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P7 ppt
... optional. Option C does not work, again because
you cannot qualify column names when specifying the USING clause. Option D works
because it specifies the join condition explicitly in the ON ... additional search criteria to restrict the rows returned.
5. B, D. Option A does not work because you cannot qualify column names when using a
natural join. Option B works because the only common...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P8 docx
... be defined on a table to “fire” when an insert, update, or delete
operation occurs on the table. A trigger may also be defined on the database to “fire” when
certain database conditions occur, ...
(database block size). You do not specify the size with this datatype definition.
LONG
The syntax for the LONG datatype is as follows:
LONG
Using the LONG datatype is discouraged in Oracl...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P9 ppt
... country_name, location_id, city
FROM locations NATURAL JOIN countries
WITH READ ONLY;
View created.
Creating Constraints on Views
Oracle 11g allows you to create constraints on views. Constraints on views ... actions permitted on read-only tables Understand the various actions that are
permitted on a read-only table. Any operation that changes the data in the table is not
allowe...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P10 pptx
... process connects to one and only
one server process. However, in some Oracle configurations, multiple
user processes can share a single server process. We will discuss Oracle
connection configurations ... transaction recovery information from the SGA’s
redo log buffer to the online redo log files on disk
Process Monitor PMON Cleans up failed user database connections
System Monito...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P13 ppt
... Locations screen
You are presented with three options on the Database File Locations screen:
Use Database File Locations from Template
Use Common Location for All Database Files
Use Oracle- Managed ... 9.2 Template Definition Details
Section Description
Common Options Displays which databases options will be installed
Initialization Parameters Displays the common initialization...