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Recently used JDBC Connection Oracle times Error: ORA-12505, Tns:listener does not currently know of SID given into connect descriptor the Connection descriptor used by the C Lient was: 10.12.162.84:1521:xxxx Landing Oracle Data discovery is

One, static key word 　　 The original member variable in a class, each new object, this object has a member variable of its own, because these member variables are not static member variables. For a static member variable, this member variable has

In Linux execute sqlplus this error, execute NETCA command, configure naming Methods configuration and local Net Service Name configuration, Then look at/u01/oracle/product/10.2.1/network/admin/tnsnames.ora

How does the statement detect the SQL statement being emitted by the foreground? Software Environment: 1. Windows 2000+oracle 8.1.6 2, the Oracle installation path is: C:\ORANT Implementation method: You can use the following statement: Select

PHP5 A. Introduction Now in the development of Web applications, a more popular approach is to use the "MVC" structure, the use of such a way to develop Web applications, logical, Jianho clear, so that the design is more convenient and fast. What

In 10g, Oracle has added dbms_monitor packages, making it easier for users to set up trace and statistical information. This article describes the trace-related process. The Dbms_monitor package provides several ways to open, close a session, or

What is the relationship between Note 1, instance, and Sid? What is the relationship between an instance and a database? People often ask what is SID? Sid is a recurring variable in Oracle systems, such as environment variable ORACLE_SID,

server| Security | Questions about security issues with SQL Server By xundi Xundi1@21cn.com www.xfocus.org At present, there are many ways to invade NT Server, such as exploiting the vulnerabilities of IIS, but People don't know notice no,

In Windows Vista and Windows Server 2003 Service Pack 2, Microsoft provides a new command-line tool icacls that you can use to view, set, save, and recover permissions for a folder or file. It is more powerful in function than it used to be cacls.

Sqlplus Execution: the@?/rdbms/admin/awrrpt Production snapshot, a point in time, and then the next point in time.2-- attachment Job First execution step: 1) SQLPLUS in the execution of production snapshot 2 time points; 2) generate an AWR report.

--oracle Common Performance Monitoring SQL statements--1SELECT * from SYS. V_$sqlarea WHERE disk_reads > 100;--2 waiting for the monitoring caseSELECT EVENT,SUM (DECODE (wait_time, 0, 0, 1)) "Prev",SUM (DECODE (wait_time, 0, 1, 0)) "Curr",COUNT (*) "

The difference between in and exists and the efficiency of SQL executionMany forums have recently started to discuss the difference between in and exists and the efficiency of SQL execution,This paper deals with some differences between in and

Section I.--or # single-line comment/*** Multi-line Comment*/--C CREATE DATABASE examCREATE DATABASE Exam;Use exam;/* Create a departmental table */CREATE TABLE Dept (Deptnoint PRIMARY KEY,Dnamevarchar (50),Loc VARCHAR (50));/* Create an employee

A "understanding of the Oracle_sid--------------------------------------------------------------------------------The SID in Oracle acts like a "switch variable"---directs Oracle to start the instance correctly by reading the appropriate parameter

Temp table:* * This is a table and data * *SELECT * FROM score where num > 60;* * Turn the table data into a temporary table, as a temporary table, then you can query the data in this temporary table * *(SELECT * FROM score where num >60) as B;The

Create a new Student information sheet (student) that requires:1. The fields are as follows: study number (SID), name, Gender (sex), age, address.2. Add a constraint for the field: The primary key, the name is non-empty, the gender is the check

1 --20,141,230 Deployment scripts (from top to bottom in chronological order)2 3 4 --command line, export the database data to be deployed (no semicolon)5 --EXPDP rmb3/[email protected] schemas=rmb3 directory=expdir dumpfile=20141230.dmp logfile=2014

Mission Purpose: Under local Windows PHP connects to Oracle under the remote server.You must determine the database version of the server, which can cause many errors if the local driver and the server version are inconsistent.The known Oracle

The problem is as follows:Sql> Conn Scott/[email Protected]_databaseConnected to Oracle Database 11g Enterprise Edition Release 11.1.0.6.0Connected as Scott。。。。。。sql> drop table Student2;drop table Student2ORA-00054: The resource is busy, but the

When you run the status of the Lsnrctl command, you often see the following return values: the Service "test" consists of 1 routines. Routine "MyData", State unkown, contains a handler for this service ... Service "A" consists of 1