Oracle

Oracle note (16) link to the database design paradigm: Oracle note (1) Oracle introduction and Installation http://www.bkjia.com/database/201209/154049.html ; Oracle notes (2) SQLPlus command http://www.bkjia.com/database/201209/154051.html Oracle

This section briefs how to use jobs provided by oracle to implement scheduled execution of oracle tasks. 1. introduction There are two types of custom scheduled tasks: system-level and database-level. For windows systems, we can use task plans. For

Oracle rollup and cube Statement Analysis rollup is an extension of group by, which performs subtotal and total, while cube contains rollup, which is a more fine-grained subtotal and total. When there is only one field, rollup and cube are the same.

Oracle PL/SQL control structure PL/SQL is a process-oriented language with a logic-oriented control language. The main logical control statements include IF, IF .... ELSE..., IF .... ELIF ....., nested IF, CASE, LOOP, WHILE... LOOP,... LOOP, cursor

SQL statement Example 1 select distinct id, name, TEST_TYPE, parentid2from db_TEST t3start with name = 'system' connect by prior t. parentid = id4order by id query result 011 0 default 0 02 www.2cto.com 2 1 e 0 0033 401 CRM 0 1044 541 CSM6 0 1055

Modify and query oracle Max cursors 1. View ORACLE Max cursors C: \ Documents and Settings \ Administrator> sqlplus "sys/orcl @ orcl as sysdba" SQL * Plus: release 9.2.0.1.0-Production on Thursday November 5 09:08:04 2009 Copyright (c) 1982,200 2,

Use SQL> set colsep ''for the oracle set command; //-domain output separator. SQL> set term {ON | OFF}; // on: the query result is displayed in both the offline files and SQLPLUS files. off: the query result is only displayed in the offline files.

Oracle Table Partitioning has been studying the knowledge of Oracle Table Partitioning for a while. As the data volume continues to expand, the Partitioning technology is a very effective technology to improve efficiency. Www.2cto.com is limited to

Routine Management and inspection of Oracle rac em tool em cluster configuration: [html] emca-displayConfig dbcontrol-cluster [oracle @ racdb1 ~] $ Emca-displayConfig dbcontrol-cluster www.2cto.com started emca at Sep 29,201 2 8:12:56 am em

Solve the Problem of oracle listening service and instance service disappearing ********** listening service *********** open and run --> enter the netca command--> Select [Listener Configuration] --> next: select [reconfigure] --> next: default -->

Oracle merge statement merge into table name a using (select? As field 1 ,? As field 2 ,..... from dual) B on (. field 1 = B. field 1 and ....) (Judgment condition) when matched then update set field 1 = Field 1 ,...... when not matched then insert (

ORACLE startup switch instance command start other server instances export ORACLE_SID = database instance name sqlplus/nolog conn/as sysdba select name from v $ database ;! Lsnrctl status; view the instance listener startup Oracle operation command #

To configure the ORACLE 11g green client and PLSQL environment, you can use the lite version client officially provided by ORACLE, that is, the green installation-free client. (The official versions are provided here ):Clients used in Windows 32-bit

ORA-01652: temp tablespace problems related to the problem and Cause Analysis 1, log on to the database, view the host log, the error content is ORA-01652, temp tablespace is not ORA-01652: unable to extend temp segment by 128 in tablespace TEMP01 2,

ORA-10997: another startup/shutdown operation of this instance in progress solution tonight want to learn about oracle, Open Database: SQL> startup ORA-10997: another startup/shutdown operation of this instance inprogress ORA-09967: unable to create

Oracle's tablespace management tablespaces classification: tablespaces act as SYSTEM tablespaces (SYSTEM and SYSAUX). These tablespaces must exist. Generally, users store data dictionary tables www.2cto.com temporary tablespaces (TEMP) for user

Oracle Database Start and Stop 1. su-oracle2. cd $ ORACLE_HOME/bin3 .. /lsnrctl start4. sqlplus/nolog5. connect/as sysdba6. startup/shutdown shut down the database www.2cto.com. There are four parameters that define shutdown: normal needs to wait

Introduction to Oracle index partitions 1. The overview is the same as that of table partitions. indexes can also be partitioned. There are two ways to partition an index in oracle: 1. Each index partition corresponds to one table partition, and

Oracle queries the SQL code www.2cto.com select * from (SELECT. *, (select count (distinct B. fee_name) from biz_patent_fee_notice B where B. main_id =. id) notices, (select count (distinct B. fee_name) from biz_patent_fee_notice B where B. main_id =

Oracle needs to create two tables test1, test2: www.2cto.com create table test1 (id Integer primary key, name varchar2 (40 )); create table test2 (id integer primary key, age integer, height number); insert multiple data entries into a table at a