Oracle

Table Space DefinitionTable spaces are specifically built to unify the physical and logical structure of Oracle, and physically,A tablespace is made up of data files on one or more disks (at least 1 to 1, which can be 1 pairsmore), logically a table

Summary of issues encountered when connecting to a remote database using oracle11g Net Manager.1 on Win7 System Start menu-"oracle-oradb11g_home1--" configuration and porting tools--"Net Manager650) this.width=650; "src="

As for some errors that occur during the installation process, I summarize that the path does not have permissions, not the user group below theTo create Oracle users and user groups and directories, and to assign permissions to the directory, refer

/* The quantity required for the item requires the warehouse quantity of the existing quantity of the warehouse volume batchA1 2 C1 C1 20 123A1 2 C1 C2 30 111A1 2 C1 C2 20 222A1 2 C1 C3 10 211A2 3 C4 C1 40 321A2 3 C4 C4 50 222A2 3 C4 C4 60 333A2 3 C4

During the SQL statement optimization process, hint is often used,The following are 30 uses of "HINT" in Oracle Common in SQL optimization1./*+all_rows*/Indicates that the cost-based optimization method is selected for the statement block, and the

Recently, there are customers in the application of the system has a frequent automatic disconnection of the database (every 10 minutes) of the anomaly, through the search for learning, find the following two ways to solve. For everyone's

Database administrator: Install upgrade Oracle Database Build library, table space, table, view, index ... Develop and implement backup and repair plan database Rights Management, tuning, troubleshooting for advanced DBAs, requiring participation in

In daily production, the data sources are often diverse, today talk about the amount of excel in the data bar, because now a lot of development language support to export data to Excel, but some non-standard practice will result in the creation of

View the default tablespace for the current userSql>select username,default_tablespace from User_users;View the role of the current userSql>select * from User_role_privs;View system and table-level permissions for the current userSql>select * from

Linux login Oracle User, when starting the database through the Lsnrctl Start command, the error is as follows: [[email protected] ~]$ lsnrctl start Lsnrctl for linux:version 11.2.0.1.0-production on 29-apr-201507:38:11 Copyright (c)

first, the environment preparation1.1. DescriptionWorking path/data/hdfs/data1/jianxin/1.2. Software versionOracle-xe-11.2.0-1.0.x86_64.rpm.zip1.3, modify the Tmpfs1.3.1, Oracle XE gives the minimum requirements in the Init.ora file, which is 1G by

ora-01017Description of the phenomenon:Scott users and other established users are logged on. But Sys and system users are not logged onScenario One (tried, no):1, Open Directory: F:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN2,

　　Function call Restrictions1, the SQL statement can only call the storage function (server side), and cannot call the client's function2, SQL can only call with input parameters, not with output, input and output functions3. SQL cannot use the

Online a bunch of Oracle Clob Insert method, basically is to insert an empty CLOB and then find this CLOB to update, but I do not understand, the query clob is a null, how the update succeeds. I later thought of using the creation of a native Clob

1, the installation media download:Official website: http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6B/F7/wKioL1U8buXRJLgaAAEtGZXBVVw407.jpg "title="

1) hit rate of the Library cacheFormula: Library Cache hit Ratio=sum (pinhits)/sum (PINS)SELECT SUM (pinhits)/sum (PINS) from V$librarycache;The hit rate cannot be less than 99%, otherwise you need to consider whether it is affected by the shared

For a detailed analysis of this case, please refer to the article "Oracle database cursor case explanation and source code"http://blog.csdn.net/sinat_26342009/article/details/45199827Case Requirements:Use cursors to transform data from two

ORA-00911 error. ORA-00911, "911" looked very domineering error number, although I am still a beginner of Oracle, but every time I encounter a not seen ORA error number, there is a kind of catch-up, based on the error code, OERR, and related error

Oracle Database TNS, oracletns TNS is a part of Oracle Net. It is a tool used to manage and configure the connection between the Oracle database and the client. In most cases, to communicate with the database, TNS must be configured, let's take a

Compile bbed under Oracledb11.2.0.4linux6.3 Environment: Oracle db 11.2.0.4, rhel 6.3 x86-64bit The following files required for compiling bbed in 11.2.0.4 (11gR2: Sbbdpt. o from: $ ORACLE_HOME/lib of Oracle db 10.2.0.5 under rhel5.8