Tài liệu OCA: Oracle Database 11g Administrator Certified Associate- P5 ppt

... the following SQL statement return?SELECT COALESCE(NULL, Oracle ‘, Certified ) FROM dual;A. NULLB. Oracle C. Certified D. Oracle Certified 17. Which expression will always return the date ... 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 ... variance, or 1 for sample size 1Table 3.2 summarizes the group functions available in Oracle Database 11g that are not included in Table 3.1. Although they are less likely to appear on the...

... returns the database s time zone, as set by the latest CREATE DATABASE or ALTER DATABASE SET TIME_ZONE statement. Note that after changing the database time zone with the ALTER DATABASE ... 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...

... 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, ... relationship using a JOIN clause instead of the WHERE clause. The JOIN clause introduced by Oracle in Oracle 9i was then added to conform to the ISO/ANSI 95127c04.indd 198 2/18/09 9:43:34 AMPlease...

... MERGE is not part of the Oracle Database 11g SQL Fundamentals I test. Table 5.1 summarizes the DML statements that Oracle supports.TABLE 5.1 DML Statements Supported by Oracle Statement PurposeINSERTAdds ... PDF Split-Merge on www.verypdf.com to remove this watermark.Chapter 5Manipulating Data ORACLE DATABASE 11g: SQL FUNDAMENTALS I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Manipulating DataDescribe ... into a table, update existing data, and delete existing data from a table. Because Oracle is a multiuser database and more than one user or session can change data at the same time, I will...

... Split-Merge on www.verypdf.com to remove this watermark.Chapter 7Creating Schema Objects ORACLE DATABASE 11g: SQL FUNDAMENTALS I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Creating Other Schema ... watermark.An Oracle database can contain far more objects than simply tables. Chapter 6, “Creating Tables and Constraints,” gave you an overview of all the major objects that can be in an Oracle ... used schema objects in an Oracle Database. A view is a logical representation of data from one or more tables or views. You can think of a view as a query stored in the database. You can consider...

... 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. ... you’ll start learning Oracle Database 11g (Oracle 11g) database administration. This chapter and the remaining chapters of the book will discuss the objectives for the Oracle 11g Administration ... watermark.Chapter 8Introducing Oracle Database 11g Components and Architecture ORACLE DATABASE 11g: ADMINISTRATION I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Exploring the Oracle Database ArchitectureExplain...

... 9Creating an Oracle 11g Database ORACLE DATABASE 11g: ADMINISTRATION I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Creating an Oracle Database Create a database by using the Database Configuration ... locate, and view the database alert log.Using DBCA to Create Oracle 11g DatabasesThe Oracle Database Configuration Assistant (DBCA) is a Java-based tool used to create Oracle Databases. If you’ve ... the Oracle Database Configuration Assistant tool, which creates and removes Oracle Databases, and how you can use templates to create databases.After creating the database using DBCA, the database...

... 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 ... 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...

... .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 ... Schema ObjectsA schema is collection of database objects owned by a specific database user. In an Oracle 11g database, the schema has the same name as the database user, so the two terms are syn-onymous....

... 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 ... 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 ... architectureApplicationServer Database ServerClientInternetHTTPRequestAppServer Oracle NetRDBMS Oracle NetTCP/IPAn Overview of Oracle Net Features Oracle Net is the glue that bonds the Oracle network...