Oracle

Lab Environment:OEL5.6 Oracle11.2.0.1Experiment begins:Database run state, delete all logs:[[email protected] test]$ lsControl01.ctl Redo01.log sysaux01.dbf undotbs01.dbfDATA_OL01.DBF Redo02.log system01.dbf users01.dbfEXAMPLE01.DBF Redo03.log temp01

In is the appearance and the inner table as a hash connection, and exists is the external loop loop, each loop loop and then query the internal table.NOT exists: Do NL, subquery first, there is a virtual table, there is a definite value, so even if

Error ORA-00900: Invalid SQL statement, click OK after error: ora--00942: Table or view does not existAnalysis: Prompt in Oracle is the printing function, if you want to execute the SQL file with prompt in the Plsql, will report the above error, on

1  Backup parameter file $oracle_home$/dbs2  copy files and backup requirements according to the path of Ramn backup 3  delete the old library exactly as the original server path [email protected]> shutdown immediate; [email protected]>startup mount 

Create a stored procedure that adds food Create or Replace procedure Add_food_pro (name in Varchar,price in number,description on varchar) as Begininsert into food (f_name,f_price,description) values (name,price,description); commit;end;--The

SOURCE program AcquisitionDownload Oracle 10g from Oracle's official website: 10203_vista_w2k8_x86_production_db.zip;==> Server (required) 10203_vista_w2k8_x86_production_client.zip;==> client (useless, can not download);

Test connection usage for Oracle database① Connect to Oracle database, list all databases[[email protected] sqoop] $sqoop list-databases--connect jdbc 10.1.69.173:1521:orclbi--username huangq-por Sqoop list-databases--connect jdbc Racle:thin10.1.69.1

Declare--type definitionCursor C_eventstateIsSelect Campaignid,phonenumber,policynumber from Mkt_eventstate a where synstate =0 and packagestate = 2 and ErrorCode = 6 ;--Define a cursor variable v_cinfo c_emp%rowtype, which is a row of data type in

1. Copy the following code into the text, and finally modify the text suffix name to xxx.bat batch file;*************************************************************************************************************** ******************@echo

Take a list of process business information to illustrate the use of Oracle synonym solutions.The following objects are available in the Oracle database Bpm_sun User: Object Name type Description

Perac =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP) (HOST = 131.197.17.137) (PORT = 1521))(ADDRESS = (PROTOCOL = TCP) (HOST = 131.197.17.138) (PORT = 1521))(load_balance = yes)(FAILOVER = ON)(Connect_data =(SERVER = dedicated)(service_name =

Want to import a oracle11g database to their local computer, direct exp export to get their own computer on the prompt error,So I find a way on the internetHere's how:One, on the 11g server, use the EXPDP command to back up data11g Export statement:

Microsoft Windows [version 6.1.7601] Copyright (c) Microsoft Corporation. All rights reserved. C:\users\ckz>sqlplus ZZJD/[EMAILPROTECTED]/ORCL as SYSDBA; Sql*plus:release 11.2.0.1.0 Production on Wednesday May 17:00:46 2015Copyright (c) 1982,

First, the Export method:There are four ways to export data using the Exp/imp method:1. Table mode export: One or more specified tables, including the table definition, table data, table owner authorization, table index, table constraints, and

First, let's take a look at what is the primary foreign key?1. Primary key: Uniquely identifies a row in a data table1) There can be only one primary key in a table. If you establish a primary key on another field, the original primary key is

1. View Oracle VersionSql> select * from V$version; bannercon_id-------------------------------------------------------------------------------------------------- --oracle Database 12c Enterprise Edition release 12.1.0.2.0-64bit production0pl/sql

Connect to the Oracle database with Plsql by using a thin client that does not require an installed client.Download the installation package firstDownload the Oracle Instantclient Basic package on the ORALCE official website.The address is as

Stored Procedures1 CREATE OR REPLACE PROCEDURE Stored procedure name2 is3 BEGIN4 NULL;5 END;Line 1:Create OR REPLACE PROCEDURE is an SQL statement that notifies the Oracle database to create a stored procedure called skeleton, overwriting it if it

Oracle uses AWR's SQL ordered by Gets and SQL ordered by Reads to diagnose problems I have read many database reports before, and have encountered two serious performance problems recently. They are very representative, so I recorded them. Once, the

Design paradigm of relational databases and database design paradigm 1. 1NF)The first paradigm is the basis of the second and third paradigm and the most basic paradigm. databases that do not meet the first paradigm are not relational