Oracle

Completed Oracle 10g database and forgot to unlock the Scott account. This can be in the SQL Plus tool (start | All Programs || Application Development | SQL Plus), or you can unlock the Scott account from the console via the command line.In the

An excellent Oracle automatic backup script (exp for WINDWS)Zhu XiaoqueTime:2011-5-12First, the contents of the scriptSet mydate=%date:~0,10%Exp System/[email protected] full=y file=d:\ora_bak\data\hzic_%date%.dmpLog=d:\ora_bak\log\hzic-log_%mydate%.

1, the processing of NULL value --to determine whether it is empty, to take a value when empty, not empty when another value　　1), in SQL ServerISNULL (Check_expression,replacement_value)Explanation: If the check_expression value is empty, return

--date converted to stringSELECT Date_hire, To_char (Date_hire, ' Month dd yyyy ') HIREFrom Employee_pay_tbl;SELECT Employee_tbl. emp_id,Employee_tbl. Last_Name,Employee_pay_tbl. POSITIONFrom Employee_tbl, EMPLOYEE_PAY_TBLWHERE Employee_tbl. emp_id =

Today, when managing Oracle, a very strange problem is found, which can be landed via Sqlplus Sys/password as SYDBA or Sqlplus/as sysdba.But by Sqlplus Sys/[email protected] as SYSDBA login error, displayOra-01031:insufficient PrivilegesObviously

----1.createandloadfromoraquery command and open 6 threadsCommand>createandloadfromoraquery scott.t1 6 SELECT * from SCOTT.T1;----2. Complete data import with built-in commandsCommand>call tttableschemafromoraqueryget (' Scott ', ' T1 ', ' SELECT *

Configuration for connecting to Oracle under php5.6September 03, 2014 PHP Development No Comments read 460 times First of all, I was under Windows, the system is win7 64-bitThis upgrade span is a bit large, has been used apache2.2, apache2.4

Three. Issues that may arise with the Import tool imp(1) Database object already existsIn general, you should completely delete the table, sequence, function/process, trigger, etc. of the target data before importing the data.The database object

Build table:Create TableA (IDvarchar( -), namevarchar( -));Create TableB (Namevarchar( -), agevarchar( -));Create TableC (Namevarchar( -), Deptvarchar( -));To construct the data:Select * from A; Select * from b; Select * from C;A, B Association

Creating test tables and test dataCREATE TABLE Test (ID number,name varchar (10));INSERT into test values (1, ' Liufang ');INSERT into test values (2, ' Xiaozhang ');INSERT into test values (3, ' Dawei ');INSERT into test values (4, ' Laotan

Problem environmentfp:precise901+oracle11gAgent:oracle Linux Server Release 6.4, oracle11g (RAC)Problem descriptionPatrol found precise agent instance 2 monitoring failed to collect dataVerify error: Error in collector startupAnalysis process1,

Check a table today, the query table in a particular type of data is particularly slow, but query the whole table particularly fast, also did not find the reason, Baidu a bit, may feel (a small probability) is the followingSome people say:Note that

Problem:Find out the names, jobs, and salaries of employees with lower wages in the EMP table than any salesperson ("salesman").Analysis:Salespeople have a lot of records in the EMP table, everyone's salary is not equal, if the return "than any

Sometimes when we show the data in the table, we need to display the rows into columns, as in the following form:The original table structure is shown below:---------------------------Product Name Sales Quarter---------------------------Cheese 50

Applicable platform: AIX HP Linux win SolarisApplicable version: all databases 10.1.0.2 to12.1.0.1Suitable for RAC and standaloneTake the RAC environment as an example: Assume that Oracle is an Oracle RDBMS group and that the grid is a GI group;For

Dbms_output Bag No. Sub-Program Name Describe 1 Enable Opens the buffer when the user uses the"SET serveroutput on" command, this statement is called automatically 2 Disable

Oracle lock 3: DDL lockWhen an ongoing DDL operation is executed or a schema object (Note) is referenced, the Data dcictionary (DDL) Lock is used to protect the definition of the schema object, only a single schema object is locked during DDL

Connect to oracle using plsql without installing the oracle client1.1. Download the Instant Client Official Website: Http://www.oracle.com/technetwork/cn/database/features/instant-client/index-092699-zhs.html Download the instantclient-basic Package

OracleRAC cluster SCAN description        1 SCAN Overview Some netizens posted a message on my Blog saying that I didn't write SCAN configuration in my RAC setup. This was supposed to have been written before, But I just searched for it and did not

How to detach an oracle11g Client 1. Disable oracle service: Go to computer management. In the service, find all services starting with oracle, right-click and choose stop. 2. In the Start Menu, find the Universal Installer, run Oracle Universal