Oracle

These two days, in the Win7 64bit system, installed 10g client, how not even on the Linux Oracle server, engaged in two days, and finally do well. To sum up, there are two aspects of experience, one is Oracle uninstall, and the other is the client

Foreword: There are a lot of solutions on the net, delete Listener.ora or whatever, still can not solve this problem of me, still report 12514 error, following is I try after the successful listening string. Listener.ora file: # Listener.ora Network

Just contact Oracle database and get used to the easy way to get started with SQL Server????????????????????? 1. Using the cmd login Sqlplus method >sqlplus SYS/12345678@ORDB1 as Sysdba ORDB1 is the database server name 2. Use Oracle's Sqlplus

In Oracle, both command and object names are case insensitive because Oracle converts all names and commands to uppercase when the statement is processed. However, the characters in the string, whether comparison or sorting, are case sensitive. This

EXISTS (SQL returns the result set to true) not EXISTS (SQL does not return the result set to True) is as follows: Table A ID NAME1A12A23A3 Table B ID AID NAME1 1B12 2B23 2B3 table A and table B are 1 pairs of relationships a.id => B.aid

Procedure: The source database is a 64-bit ORACLE11GR2 software that restores the database (including parameter files, data files, control files, log files) to the same name as the 32-bit ORACLE11GR2 database with Rman full backup. Error behavior:

When imported from PowerDesigner into Oracle, remember to capitalize all the table names in Oracle. In the beginning, because the table name is lowercase and then the default is lowercase in Oracle, there are some very strange cases where the

In Oracle, both command and object names are case insensitive because Oracle converts all names and commands to uppercase when the statement is processed. However, the characters in the string, whether comparison or sorting, are case sensitive. This

Oracle View trace file step   1. Get current trace file generation path sql> select Tracefile from v$process where addr in (select Paddr from V$se Ssion where SID in (select SID from V$mystat));   Tracefile  www.2cto.com  ----------------------------

Build sequence SequenceCREATE SEQUENCE sequence Name (for example: "Urlimage_seq") MinValue 1 MAXVALUE 999999999999999999999999999 INCREMENT by 1 START with CA CHE Noorder nocycle; Build trigger TriggersCreate or Replace trigger trigger name (for

PPAs has two migration tools, a graphical interface, a command line, and the following is an example of a graphical interface. 1 First of all, we need to establish the corresponding user and peer permissions on the target database system PPAs, and

Keywords: analysis design and modeling Today, the data table, using the Oracle 9i database, with the Powerdesinger 12 model, the concept model into a physical model, I look at the preview, it is strange to find all the drop, create and other

problem Oracle will have order/noorder two options when creating sequence, so what exactly is the order of the scene and what is the Noorder? Official Documents Order guarantees this sequence numbers are generated in order of request. You

ORACLE Directory Directory management stepsOracle 's directory is a directory path in the database and needs to be mapped to the corresponding directory in the operating system; The role of the Oracle directory is to make ORACLE database and

Control transactionsBank transferJohn Doe to Zhang San remittanceACIDA: atomicity: All the steps in the whole transaction are indivisible, the atomic principle stipulates that each step of a transaction must be completed, or the entire transaction

Introduction: The feature of Oracle parallelism has not been much of a concern in the past. A few days ago a brother encountered a problem, just let me think this thing still has a lot to pay attention to places, it is necessary to carefully

System Configuration CentOS 7.4 x86_64 operating system; Oracle only supports 64-bit Linux systems. 32Linux platform is not supported; Orache Installation configuration: Memory capacity: 4GB and above; Swap capacity:

Video lesson: Li Xinghua Oracle from Getting started to mastering video lessonsLearner: Sun Luo nuoVideo Source: 51CTO College If you want to query, you must use the query part of the DML support, relative to the simple query, the popular

1, in the use of system process PID query the corresponding physical addressSELECT v.addr,v.* from V$process VWHERE v.spid = ' 5256;2, through the physical address to find the corresponding sql_idSELECT t.sql_id,t.* from V$session tWHERE t.paddr= ' 0

An Oracle database server includes:1. A physical database that stores Oracle data, which is a series of physical files that hold Oracle database data, including control files, data files, log files, and other files.2. Oracle instance: This is a