oracle database 11g architecture diagram ppt
Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P4 ppt
... 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 ... 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 ... you to internationalize your Oracle database system. NLS internationalizations include date representations, char-acter sets, alphabets, and alphabetical ordering. Oracle will implicitly or automatically...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P5 ppt
... 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...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P6 pptx
... 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...
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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.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;...
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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 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
... 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 ... (EM) Database Control. Before learning to administer the Oracle 11g database, let’s start with the basics. In the next section, you’ll learn about Oracle 11g architecture. Oracle 11g Architecture Each ... 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
... 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 ... 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 ... Chapter 8 N Introducing Oracle Database 11g Components and Architecture Review Questions1. What are the benefits of using the OFA standard for installing Oracle 11g? (Choose all that apply.)A....
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P14 pptx
... 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 ... DiagEnabledTRUEADRBase/u01/app /oracle ADRHome/u01/app /oracle/ diag/rdbms/oca11g/OCA11GDiagTrace/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/traceDiagAlert/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/alertDiagIncident/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/incidentDiagCdump/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/cdumpHealthMonitor/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/hmDefaultTraceFile/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/trace/OCA 11G_ ora_9018.trcActiveProblemCount0ActiveIncidentCount0The ... DiagEnabledTRUEADRBase/u01/app /oracle ADRHome/u01/app /oracle/ diag/rdbms/oca11g/OCA11GDiagTrace/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/traceDiagAlert/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/alertDiagIncident/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/incidentDiagCdump/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/cdumpHealthMonitor/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/hmDefaultTraceFile/u01/app /oracle/ diag/rdbms/oca11g/OCA11G/trace/OCA 11G_ ora_9018.trcActiveProblemCount0ActiveIncidentCount0The...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P15 ppt
... .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 ... 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...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P16 pptx
... 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 ... 11Understanding Network Architecture ORACLE DATABASE 11g: ADMINISTRATION I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Configuring the Oracle Network EnvironmentConfigure and Manage the Oracle Network ... 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...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate Study Guide- P3 ppt
... called script files.Data in the Oracle database is managed and accessed using SQL. A SELECT statement is the basic form of querying or reading records from the database table. You can limit ... the database. This view has several columns that show various information about the session; often the DBA is interested in finding out the username and which program is connecting to the database. ... variables, Oracle uses these values to execute the script.SummaryThis chapter started off with reviewing the fundamentals of SQL. You also saw an overview of SQL*Plus in this chapter. SQL*Plus is Oracle s...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate Study Guide- 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.Truncating a TableTruncating ... a table, Oracle Database never escalates the row-level lock to a table-level lock; and furthermore, users or developers shouldn’t explicitly lock unless there is a very good reason Oracle handles...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate Study Guide- P8 ppt
... also be defined on the database to “fire” when certain database conditions occur, such as starting the database, or when a database error occurs.Java objects Oracle Database 11g includes Java objects ... physical storage area (block). Database storage and blocks are discussed in Chapter 8, “Introducing Oracle 11g Components and Architecture. ” Database links A database link is a schema object ... tables and constraints on tables. Database Objects OverviewData in the Oracle Database is stored in tables. A table is the main database object. Many other database objects, whether or not they...
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Tài liệu OCA: Oracle Database 11g Administrator Certified Associate Study Guide- P10 pptx
... administer Oracle 11g database. Interacting with Oracle 11g SQL is the language used to interact with the Oracle 11g database. Many tools are available for the DBA to administer an Oracle 11g database. ... 8Introducing Oracle Database 11g Components and Architecture ORACLE DATABASE 11g: ADMINISTRATION I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Exploring the Oracle Database Architecture Explain ... 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 Oracle Database 11g P2 pptx
... all or part of a database into a new database created with the Oracle Database 11g server software.You can upgrade an Oracle 8i, Oracle 9i, or Oracle Database 10g client to the Oracle 11.1 release. ... the Oracle 11.1 release. You can use the Oracle 11.1 client to access any Oracle 8i, Oracle 9i, Oracle Database 10g, and Oracle Database 11g (11.1) databases.In the following sections, we’ll ... Tool. In Oracle Database 11g, this utility provides more information than before to help you during the upgrade process.If you’re upgrading from Oracle Database 10g to Oracle Database 11g, you...
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