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 6:46:42 AMPlease purchase ... instance recovery is needed. Please see Chapter 8, “Introducing Oracle 11g Components and Architecture,” for more information. Oracle provides the ORA_ROWSCN pseudocolumn to identify the SCN...

... Split-Merge on www.verypdf.com to remove this watermark.Chapter 3Using 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 least one ... option is useful only if you are running the Oracle Parallel Server and have multiple instances.LANGUAGEÛN returns the language, territory, and database character set. The delimiters are an...

... Split-Merge on www.verypdf.com to remove this watermark.Chapter 4Using Joins and Subqueries ORACLE DATABASE 11g: SQL FUNDAMENTALS I EXAM OBJECTIVES COVERED IN THIS CHAPTERDisplaying 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 the result to another table, ... 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...

... 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.Truncating a TableTruncating ... MechanismLocks 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;...

... 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....

... 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 ArchitectureInstalling 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 ... Oracle Database 11g Components and ArchitectureThe Oracle InstanceAn Oracle database instance consists of Oracle s main memory structure, called the system global area (SGA), and several Oracle...

...  Creating an Oracle 11g Database Use Oracle- Managed FilesIf you choose Use Oracle- Managed Files, you let the Oracle Database manage the operating-system files comprising the database. As a ... certification exam, refer to OCP: Oracle Database 11g Administrator Certified Professional Study Guide (Sybex, 2009).Choose Create a Database, and click Next to open the Database Templates screen. ... Creating an Oracle 11g Database FIGURE 9.7 DBCA Database Credentials screenFour accounts are preconfigured when you set up your database: SYS    The SYS user owns all the internal Oracle tables...

... Creating an Oracle 11g Database SummaryIn this chapter, you started off by learning how to create an Oracle 11g database using the Database Configuration Assistant. Then I discussed the Oracle metadata ... Diag​Enabled​​​​​​​​​​​​​​TRUEADR​Base​​​​​​​​​​​​​​​​​​/u01/app /oracle ADR​Home​​​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11GDiag​Trace​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/traceDiag​Alert​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/alertDiag​Incident​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/incidentDiag​Cdump​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/cdumpHealth​Monitor​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/hmDefault​Trace​File​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/trace/OCA​​​​​​​​​​​​​​​​​​​​​​​​​ 11G_ ora_9018.trcActive​Problem​Count​​​​​​0Active​Incident​Count​​​​​0The ... Diag​Enabled​​​​​​​​​​​​​​TRUEADR​Base​​​​​​​​​​​​​​​​​​/u01/app /oracle ADR​Home​​​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11GDiag​Trace​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/traceDiag​Alert​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/alertDiag​Incident​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/incidentDiag​Cdump​​​​​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/cdumpHealth​Monitor​​​​​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/hmDefault​Trace​File​​​​​​​​/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/trace/OCA​​​​​​​​​​​​​​​​​​​​​​​​​ 11G_ ora_9018.trcActive​Problem​Count​​​​​​0Active​Incident​Count​​​​​0The...

... 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 ... .dbfSYSAUX /u01/app /oracle/ oradata/11GR11/sysaux01. 883818496 YES dbfSYSTEM /u01/app /oracle/ oradata/11GR11/system01. 734003200 YES dbfEXAMPLE /u01/app /oracle/ oradata/11GR11/example01 104857600 ... .dbfAPPL_DATA /u01/app /oracle/ oradata/11GR11/appl_data 209715200 NO 01.dbfAPPL_DATA /u01/app /oracle/ oradata/11GR11/appl_data 209715200 NO 02.dbfHR_DATA /u02/oradata/11GR11/11GR11/datafile/o1_m...

... experienced Oracle database administrator has seen this maturation process in the Oracle network architecture as well. From the first version of SQL*Net to the latest releases of Oracle Net, Oracle ... Architecture ORACLE DATABASE 11g: ADMINISTRATION I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Configuring the Oracle Network EnvironmentConfigure and Manage the Oracle Network Using the Oracle ... OCIDriver Oracle NetRDBMS Oracle NetTCP/IPNetworkIn this example, the Java application installed on the client uses the JDBC OCI driver and Oracle Database server. When an application makes a database...