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...

Ngày tải lên: 24/12/2013, 02:17

... 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...

Ngày tải lên: 14/12/2013, 15:15

... 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...

Ngày tải lên: 24/12/2013, 02:17

... 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...

Ngày tải lên: 24/12/2013, 02:17

... 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...

Ngày tải lên: 14/12/2013, 15:15

... 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...

Ngày tải lên: 14/12/2013, 15:15

... 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...

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, ... 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...

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...

Ngày tải lên: 14/12/2013, 15:15

... 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...

Ngày tải lên: 14/12/2013, 15:15