Oracle

This is the ultimate problem, because the complexity of optimization itself is difficult to summarize, many times the method of optimization is not the use of the mysterious technology, but only a level of ideological differences, and these are

SOURCE Environment: RHEL 6.4 + Oracle 11.2.0.4Purpose Environment: RHEL 6.4 + Oracle 11.2.0.4 DG Dual MachineRequirement: Use SQL to transport table space Dbs_d_jingyu from the source environment to the destination environment. 1. Create a

Create or Replace function Fun_search_orderby (InstaceidinchVarchar2,tye in varchar2)returnvarchar2 isnum number; A number; B number; F Number;kv_ys varchar2 ( -); Kv_zg varchar2 ( -); Kv_tj varchar2 ( -); Cv_ys varchar2 ( -); Cv_zg varchar2 ( -);

Oracle OCM Oracle Certified MasterIn order to facilitate learning Oracle for beginners, the following will be updated according to this directory OCM related information, enjoy the attention. (Purely individual learning to organize, not for

Example:Sql> set Linesize 300Sql> select * from V$recovery_area_usage;File_type percent_space_used percent_space_reclaimable number_of_files con_id--------------------------------------------------------------------- ------------------ --------------

One, data definition language (DDL)Data definition language is used to alter the database structure, including creating, changing, and deleting database objects.The data definition language commands used to manipulate the table structure are:CREATE

INSTR(Source string, target string, start position, match ordinal)In Oracle/plsql, the InStr function returns the position of the string to intercept in the source string. Retrieve only once, that is, from the beginning of the characterEnds at the

Resolution: (1) Conn Sys/sys as sysdba;//logged in as DBA (2) ALTER user Scott account unlock;//then unlock (3) conn Scott/tiger//Pop up a dialog to change the password, Modify the password on the following steps:c:> sqlplus Please enter your

Nginx Configuration WebService#user nobody;worker_processes4; #error_log logs/Error.log, #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid;events {worker_connections1024x768;} HTTP {include mime.types;

Oracle Version: Oracle 11gLocal PC configuration: Install memory 8G64 for operating system win8.1Download the Oracle 11g Compact package:1 URL http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.htmlIf the link above fails

Database architectureDefined:The composition of the database, the working process, the composition and management mechanism of the data in the database.Compositioninstances, user processes, server processes, database files,Other files (parameter

1. Change localhost to computer name best-pc, or IP address. I changed the computer name because I often switch between the wireless network and the Limited networkSid_list_listener =(Sid_list =(Sid_desc =(Sid_name = Clrextproc)(Oracle_home = d:\app\

In peacetime remote installation of Oracle use more than the use of VNC Remote Desktop to install, of course, is afraid of installation error, but recently in the installation of a server Oracle, in the installation of the installation script when

1. Create a Directory$ORACLE _base/admin/$ORACLE _base/oradata$ORACLE _base/flash_recovery_area2, the initialization of the parameter fileCD $ORACLE _home/dbsDb_name=orclmemory_target=1gprocesses = 150Audit_file_dest= '/oracle/app/product/admin/orcl/

Problem Description:A cell, need to follow the plot, Wendy, unit number, room number, but sort by address description, because the string contains a number, so the result is as follows,Building 1th is supposed to be building 2nd, but the search

In the actual development process, there are times when we are likely to need an operational trace of a table, or a recorded SQL statement for purposeful data recovery (at which point the point-in-time recovery has not satisfied finer granularity),

1. If the database is configured with automatic storage management (ASM), the Aggregation Synchronization service CSS (Cluster Synchronization Services) should be removed first. The way to delete a CSS service is to execute the following command on

To back up a data file:Sql> Select file_id, file_name from Dba_data_files; Backup: Standby (Backup) datafile: Data file backup tablespace: Backing up table Space Backup database: backing up databasesrman> backup DataFile 4;Rman> backup DataFile 4, 5;

What is the difference between Oracle functions and stored procedures1. The difference between the return value, the function has 1 return values, and the stored procedure is returned by the parameter, can have more or No 2. The difference between

Lsnrctl Status: View listening statusOracle Network configuration consists of three parts: client, Listener, databaseConfiguration file:$ VI $ORACLE _home/network/admin/listener.oraVI listener.ora the same command as aboveNetstat-tln|grep 1521Add a