Oracle

Description:JAVA springmvc+mybatis (Oracle and MySQL) HTML5 new tall still background framework bootstrap1. Support App phone app (Android and iOS) interface call2. New high-html5+css3.0+bootstrap development interface UI, beautiful and stylish,

HR (Human resources, human resources) SCHEMACountries TABLEDepartments TABLEEMPLOYEES TABLEEmp_details_view VIEWJOBS TABLEJob_history TABLELOCATIONS TABLERegions TABLEBI (Business Intelligence, biz Intelligence) SCHEMACHANNELS synonymCOSTS

Nineth Chapter Constraint1. What is a constraintConstraint is a mandatory requirement at the table levelThere are five types of constraints: NotNULL UNIQUE PRIMARYkey FOREIGNkey CHECK2. PrecautionsIf you do not specify a constraint name, Oracle

GROUP BY rollup (A, B)=Group by A, b+GROUP by a+GROUP BY NULL1Sql> SelectDeptno,job,sum(SAL)2 2 fromEMP3 3 Group byRollup (deptno,job);4 5DEPTNO JOBSUM(SAL)6 ------ --------- ----------7 -8 -9

/*create TABLE Chukou(CAR_ID Number (Ten) is not NULL,Car_date DATE,Car_busnumber number)PARTITION by RANGE (car_date)(PARTITION Chukou_par01 VALUES Less THAN (to_date (' 17-11-2014 ', ' dd-mm-yyyy ') tablespace etltest_data,PARTITION Chukou_par02

After the installation of Oracle, it is usually found that there are 2 system-level accounts can log in, but never considered the difference between the 2 accounts, and then learned from a teacher that the difference is recorded.SYS account login,

You noticed this index tablespace in your database requires aRecovery. However, instead of performing a media recovery, you decideD to re-create the indexes in a new tablespace. which the options WouLD you use to reduce the time it takes to

Tenth Chapter View1. View: A logically related collection of data drawn from a table.A view is a virtual table.Views are built on existing tables, and the tables on which they are built are called base tables.The statement that provides the data

The 12th Chapter User CONTROL permission1. Permissions:Database security: System security and data securitySystem permissions: Permissions for the databaseObject permissions: Permissions to manipulate database objects2. System permissionsMore than 10

RAC with single-instance DG switching testI. Overview of the Environment1, EnvironmentOrace rac& Single Instance DGOs:centos - 5.8oracle:10.2.0.42,DGSynchronization StatusRac1:650) this.width=650; "width=" 389 "height=" "src="

1. How to execute SQL script file in Oracle SqlplusEnter @{file name} in the prompt in the following formatSql>@{file}Assuming that the name of the file you want to run is script.sql, then its corresponding command is:SQL > @script. sqlThe above

Anyone familiar with Oracle knows that by setting Oracle's nologging option, some operations can be done quickly, with the risk that a database backup might fail. There are a lot of things you can do with nologging, and gather the following

--implicit cursor note variable assignment with (: =) connection trailing characters (| | ) instead of the plus sign (+)DECLAREV_PK t_plat_keyword.id%TYPE;--PRIMARY KeyV_amount_message t_plat_keyword_statistic. AMOUNT%TYPE; V_amount_talk

Oracle 11g InstallationFirst, the Environment preparation Dividing area /15000M/tmp 4096M/boot 100MSwap 4096M/u01 remaining space650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/57/29/wKioL1STjcOzXOjNAAHHUeuqe1U246.jpg "/>2.

[Oracle] oracledba14archivedlogfiles The loss of which two types of files may require a recovery The RESETLOGS option? (Choose two .) A. control files B. password file C. archived log files D. system-critical data files for which all the redo

Notes for OracleGoldenGate Version UpgradeThat is to say, stop all processes under the ogghome: extract (including extraction and transmission), replicat (replication), server (the process of writing the trail file to the target end), mgr ProcessThe

Oracle 11g r2 Enterprise Manager (EM) cannot be started in windows, oracle11g The correct solution is to use emca for proper installation. If Enterprise Manager has been installed, run the following command to uninstall and reinstall

Research on ORACLENOLOGGING Anyone familiar with oracle knows that by setting oracle's nologging option, some operations can be completed quickly, and the risk is that database backup may fail. There are many nologging operations that can be used.

Oracle11g backup-based rmanduplicateBackup-based rman duplicate command to create standby databasePrerequisites: ensure the backup of the original database and archive is completely visible to the standby end,It is assumed that the storage structure

The Difference and use of for update and for update nowait, updatenowait First, for update and for update nowait are used to lock the operated data rows and prevent other operations from modifying the data before the transaction is committed.The