... chapter. SQL* Plus is Oracle s native tool to interact with the database. You got a quick introductionto the Oracle datatypes, operators, and literals. You learned to write simple queries using the ... produce interactive SQL statements and formatted reports. SQL* Plus is the command-line interface to the database widely used by DBAs. SQL* Plus has its own buffer where SQL statements are buffered. ... 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...
... DescriptionROWIDTOCHARCasts a ROWID to a characterSCN _TO_ TIMESTAMPConverts an SCN to corresponding timestamp of the changeTIMESTAMP _TO_ SCNConverts timestamp to an SCN TO_ BINARY_DOUBLEConverts input into ... number TO_ BINARY_FLOATConverts input into a BINARY_FLOAT number TO_ CHARConverts and formats a date into a string TO_ CLOBConverts character input or NCLOB input to CLOB TO_ DATEConverts a string to ... character set to anotherDECOMPOSEDecomposes a Unicode stringHEXTORAWCasts a hexadecimal to a rawNUMTODSINTERVALConverts a number value to an interval day to second literalNUMTOYMINTERVALConverts...
... available in SQL, the rules for how to use them, and what to expect on the exam about aggregating data and group functions. You will also explore nesting function calls together. SQL allows you to nest ... AMPlease purchase PDF 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 ... clauses to calculate multiple levels of subtotals. It also provides a grand total. The ROLLUP extension adds only minimal overhead to the overall query performance. ROLLUP creates subtotals...
... AMPlease purchase PDF 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 ... single-row and multiple-row subqueriesUsing the Set operatorsDescribe set operatorsUse a set operator to combine multiple queries into a single queryControl the order of rows returned95127c04.indd ... alias. To 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...
... rows selected. SQL& gt;The task before you is to merge the rows in ORDERS2 to ORDERS1. If ORDER_ID and CUSTOMER_ID match between the two tables, you need to update the ORDER_TOTAL value ... Oracle. The INSERT statement is used to add new rows to the table. The VALUES clause in the INSERT statement is used to add a single row at a time. Subqueries can be used to add rows to ... data is restored. All locks on the affected rows are released. Oracle uses read consistency to make sure you do not see the changes made to data after your query is started. Also, Oracle uses...
... customer are stored in the same physical storage area (block). Database storage and blocks are discussed in Chapter 8, “Introducing Oracle 11g Components and Architecture.” Database links A database ... important to know how to create tables and constraints on tables. Database Objects OverviewData in the OracleDatabase is stored in tables. A table is the main database object. Many other database ... you to access an object from a different database. SQL queries can reference tables and views belonging to the remote database by appending @db_link_name to the table or view. For example, to...
... are widely used in Oracle Databases to ease data access so that the user does not have to know which schema or which database the data is coming from.Indexes are used to get to the table row ... reference it in their SQL (or PL /SQL) as EMP, without needing to specify the owner. When the statement is parsed, Oracle will resolve the name EMP via the synonym to SCOTT.EMP.Creating ... WITH LOCAL TIME ZONE (TSLTZ), INTERVAL YEAR TO MONTH (IY2M), and INTERVAL DAY TO SECOND (ID2S). Which operations are not allowed by OracleDatabase 11g? (Choose all that apply.)A. DATE+DATEB....
... the Oracle11g database. SQL* Plus SQL* Plus is the primary tool for an Oracle DBA to administer the database using SQL commands. Before you can run SQL statements, you must connect to the Oracle ... is the language used to interact with the Oracle11g database. Many tools are available for the DBA to administer an Oracle11g database. The common tools are as follows: SQL* Plus, which is a ... constructs.Java Stored Java procedures can be created in Oracleto define business processes. Database link Database links are used to communicate between databases to share data.You use SQLto create database...
... to take the OCP certification exam, refer to OCP: OracleDatabase 11g Administrator Certified Professional Study Guide (Sybex, 2009).Choose Create a Database, and click Next to open the Database ... www.verypdf.com to remove this watermark. 460 Chapter 9 Creating an Oracle11g Database ASM StorageAutomatic Storage Management (ASM) is a newer type of storage mechanism available since Oracle ... www.verypdf.com to remove this watermark. Chapter 9Creating an Oracle 11gDatabase ORACLE DATABASE 11g: ADMINISTRATION I EXAM OBJECTIVES COVERED IN THIS CHAPTER:Creating an OracleDatabase Create...
... each database- shutdown option is and when you might use the option.Be able to shut down an Oracle Database. Understand how to use the database tools to shut down an Oracle Database. Know how to ... www.verypdf.com to remove this watermark. 512 Chapter 9 N Creating an Oracle11g Database EXERCISE 9.2Creating an Oracle11g database You have learned to use the DBCA to create a database, learned to ... delete a database using the command-line tool SQL* Plus. To do so, first connect to SQL* Plus as an administrator who has the ability to start up the database; that is, an administrator with either...
... defines the directory where Oracle can create data files. Oracle must have read-write permission on this directory. The directory must exist on the server where the database is located. Oracle will ... READ WRITE; Oracle normally checks the availability of all data files belonging to the database when starting up the database. If you are storing your read-only tablespace on offline storage media ... the database by using the ALTER DATABASE RENAME FILE command.5. Open the database by using ALTER DATABASE OPEN.Moving Read-Only TablespacesIf you need to move read-only tablespaces to...
... architectureApplicationServer Database ServerClientInternetHTTPRequestAppServer Oracle NetRDBMS Oracle NetTCP/IPAn Overview of Oracle Net Features Oracle Net is the glue that bonds the Oracle network together. ... CUSTOMER_ADDRESSES PK_CUSTOMER_MASTERCK_ADD_TYPE2 C CUSTOMER_ADDRESSESCK_ADD_TYPE C CUSTOMER_MASTERPK_CUSTOMER_MASTER P CUSTOMER_MASTERUQ_CUST_EMAIL U CUSTOMER_MASTERPK_CUST_REFS P CUSTOMER_REFERENCESSYS_C002804 ... now discuss the options available in Oracle11g to access data that resides in a non -Oracle database and to execute programs that are not SQL or PL /SQL. Heterogeneous ServicesThe Heterogeneous...
... connections to the Oracle server. The client must also be able to resolve the net service name. Let’s look at the checks to perform on the client to verify connectivity to the Oracle server and to detect ... users. The first step to doing this is to make sure that each user who connects to the Oracle Database 11g has an account. An account shared between many users is difficult to trouble-shoot and ... addition, be able to define Oracle Advanced Security and know when to use it.Be able to define the main responsibilities of the Oracle listener. To fully understand the function of the Oracle listener,...