Oracle

The reason why materialized views cannot be refreshed quickly: the rapid refresh of materialized views adopts the incremental mechanism. During refresh, only the changed data on the base table is refreshed. Therefore, quick refresh is the first

Install Oracle to change swap space size 1. Check the current partition: www.2cto.com [root @ localhost] # free-m 2. Increase the swap partition file and size, if you want to increase the swap partition size by 2 GB, the command is written as

Oracle Database notes --- basic usage of pl/SQL 2.pl/ SQL: Create a table:. enter your account and enter the password www.2cto.com B. select All objects in the drop-down box on the left. There are many tables, which are built-in tables. In the

I installed Oracle10g on windows2008 after porting Oracle10g to Windows. After some tossing times, I found that it was impossible to follow the normal method. The current situation is that there is no installation package for 10.2.0.3 for vista.

The non-update principle in Oracle Database Design when adding data, if the new logic involves the original information, try not to update the data. Www.2cto.com. What kind of situation will there be such a problem? For example, a user places an

Solve the problem that oracle queries data and is always in the execution status. Description: www.2cto.com is very strange, that is, the data before the date Condition 6 in the Table query can be found, the execution status is displayed after the

Common rman backup and recovery commands SQL code Oracle official documentation contains a complete description of the rman command, we can refer. The following are examples of commonly used commands: www.2cto.com common Rman commands: 1. RMAN

Basic SqlPlus command instructions: www.2cto.com remark annotation set headsep title line feed ttitle setting output page header title btitle setting output page tail title column formatting SQL statement columns break on notification sqlplus insert

For some very useful Oracle SQL prerequisites, open the windows command line window. 1. Open SQLPLUSC> sqlplus/nolog2. Connect to www.2cto.com SQL> connect user/password @ SID or SQL> connect user/password @ localhost (IP Address): 1521/SID3. Query

Oracle Architecture OverviewI. Components of Oracle ArchitectureWww.2cto.comThe Oracle architecture includes many basic components. The following describes these components in detail.1. Oracle Server: the Oracle server contains multiple file

64-bit PLSQLDeveloper connection to Oracle 12154 ErrorInstall PLSQLDeveloper on the server to facilitate data viewing, install the Oracle client and plsql1_7 prompt ORA-12154: TNS: Unable to parse the specified connection identifierI can use the

How to obtain the Java code www.2cto.com update DIM_TIME f set f. firstday_of_week = case when f. full_date

Explanation of OCP question _ 007: The Inline view optimizes the individual understanding of the all or any operator. The Inline view usually refers to the result of one SQL query as the data source of another query, generally, www.2cto.com any

1. create and manage database user accounts 1. Each database user account has the following items: (1) Unique User name: it cannot exceed 30 bytes and cannot contain special Pearl letters, it must start with a letter. (2) Verification Method:

Golden Gate entry guide: Install the installation environment of this experiment: www.2cto.com OS → Red Hat Enterprize Linux 5.4 DB → Oracle 10g GG → ogg112101_fbo_ggs_Linux_x86_ora10g_32bit note that if the database version is different, Golden

[Oracle learning] The UTL_FILE package analysis package of ORACLE UTL_FIle is used to read and write files in the operating system, provided that the Directory object and authorization are created first. Then you can use the types, procedures, and

Frequently Used commands for Oracle Database imp and exp: www.2cto.com 1. import Data command: imp userid = fkprod/fkprod full = y file = xxx. dmp 2. export Database object command: use tools ---> export user object to export data tables only.

One-point discovery of ORACLE indexes (Requirements for indexes for different table join statements)Two different table join statements are written: (the same effect) www.2cto.com select * from T_FORM_ELEMENT t join t_form_resources t1 on t1.meta _

Oracle stored procedures with input and output parameters Return Affected rows SQL % ROWCOUNT [SQL] CREATE OR REPLACE PROCEDURE PROC_UPDATE_TEMP (P_DAYS IN NUMBER, -- execution days P_ROWS OUT VARCHAR2, -- returns the NUMBER of affected rows

Oracle Proxy Authentication (Proxy Authentication) First, let's take a look at the official Oracle Introduction: Oracle Proxy Authentication was first launched in Oracle8i, it is designed to provide more flexibility for application developers when