Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P24 docx
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P24 docx
... DATABASE DROP LOGFILE
MEMBER statement, 853
ALTER DATABASE ENABLE
BLOCK CHANGE TRACKING
statement, 873
ALTER DATABASE FLASHBACK
statement, 861
ALTER DATABASE MOUNT
statement, 503
ALTER DATABASE ...
statement, 547, 557
ALTER DATABASE DATAFILE
OFFLINE statement, 547
ALTER DATABASE DATAFILE ONLINE
statement, 547
ALTER DATABASE DEFAULT
TABLESPACE statement, 665
ALTER DAT...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P8 docx
... altered.
In Oracle 11g, when you add a column with the
NOT NULL
constraint and the
DEFAULT
value, Oracle 11g does not update all the existing rows in the table with the default value.
Oracle 11g ... tables and constraints on tables.
Database Objects Overview
Data in the Oracle Database is stored in tables. A table is the main database object. Many
other database obj...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P22 docx
... use flashback
database recovery.
TSPITR and flashback database recovery are beyond the scope of this book
but are covered in more detail in OCP: Oracle Database 11g Administrator
Certified Professional ...
/u01/app /oracle/ diag/rdbms/11gr11/11GR11/trace/11GR11_ora_3506.trc:
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: ‘/u02/ap...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P25 docx
... 423
summary, 440
ORACLE_ BASE parameter, 463, 510
$ORACLE_ BASE variable, 427
%ORACLE_ BASE% variable, 428 – 430
Oracle Database Vault component, 466
ORACLE_ DATAPUMP access driver,
974 – 976
Oracle Enterprise ... Enterprise
Manager
Oracle flash recovery option, 463
ORACLE_ HOME parameter, 611
$ORACLE_ HOME variable, 427
%ORACLE_ HOME% variable, 428 – 429
Oracle Internet Di...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P4 ppt
... 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 6:4...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P5 ppt
... 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 ... 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 leas...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P6 pptx
... 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 multiple ... 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...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P7 ppt
... 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, ...
TRUNCATE
statement, as described in the next section.
TRUNCATE
is not included in the Oracle Database
11g SQL Fundamentals I exam, but I’ve included it here for completeness.
Tru...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P9 ppt
... 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...
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P10 pptx
... Introducing Oracle Database 11g Components and Architecture
GROUP# MEMBER
1 /u01/app /oracle/ oradata/11GR11/redo01.log
1 /u02/app /oracle/ oradata/11GR11/redo01.log
2 /u02/app /oracle/ oradata/11GR11/redo02.log
... Introducing Oracle Database 11g Components and Architecture
Installing Oracle 11g
One of your duties as an Oracle DBA is to install and configure the Orac...