Oracle

1 ago time for a new company, work has been very busy, there is no time to summarize!For a few knowledge points simply do the following summary:1 Use of bound variables:1) use several times, in the later using to declare several times, the order of

This blog record in a one-time testing process, the location of high CPU utilization bottleneck problem, the main location of SQL is subject to One, sql command positioning 1. first with top command monitoring system resources, if aix

DeclareCNT integer;BeginSelect COUNT (0)Into CNTFrom User_all_tablesWHERE table_name = UPPER (' dps_biztypes_manage ');If cnt = 0 ThenExecute immediate ' CREATE TABLE Dps_biztypes_manage(Id Integer NOT NULL,BizType VARCHAR2 (4) NOT NULL,Bizname

Common Oracle Query statements1. No order by ordering. (Highest efficiency)After testing, this method is the lowest cost, nesting only one layer, the fastest! Even if the amount of data queried is large, and almost unaffected, the speed remains!The

VS2015 when connecting to Oracle, it must be installed in a directory that does not contain spaces, otherwise it is not connected to Oracle, as for why, do not know, ghost know, Day.If you unfortunately previously installed the VS2015, installed in

Today in the SOA application database using the Dbms_redefition package for the online non-partitioned table conversion partition table operation, I would like to drop off the temporary table cube_scope_temp accidentally forgot to add "temp"

There are several ways to insert data, here's a brief introduction to three types1. General Insert DataSelect * from EMP; -- -Scott.emp table as an example -- --Insert data according to values(1122, ' Steve ', ' Workers ', 2233,to_date (' 2017-01-03

*********** Importing (exporting) data with toolsTool (T)-"Export Table" (X)Tool (T)-"Export Table" (X)Selected Run File location:E:\oracle\product\10.2.0\db_1\bin\imp.exe (Exp.exe)********* command Import and ExportOracle Import DMP File command:(1)

1. Confirm versionOwn operating system version (32-bit or 64-bit), Oracle Instant Client (Oracle clients version) and PLSQL versionMy own version is: Oracle Client version 64-bit, Plsql 64-bit.2. Install the Oracle client version:

Modeled http://blog.csdn.net/makenothing/article/details/170800691 establishing an Oracle connection VS2010 join a database connectionGet the connection stringData Source=server1; Persist Security info=true; User id=s227; password=xxx;

Original address: Oracle creates table spaces, creates users, and authorizes ChinacoolswordAfter Oracle is installed, there is a default database in which we can create our own database, in addition to the default database.For beginners, to avoid

I. Oracle ArchitectureOracle 's architecture is the composition of the database, the work process, and the organization and management of data in the database, to understand The architecture of the Oracle database, you must understand the Oracle

1. Start Oracle under LinuxSu-oracleSqlplus/nologConn/as SYSDBAStartupExitLsnrctl startExit2. Shut down Oracle under LinuxSu-oracleSqlplus/nologConn/as SYSDBAShutdown immediateExitLsnrctl stopExit3. Start the Listener[Email protected]:~> lsnrctl

--Example: 5 100 points side-by first, 3 90 points in parallel secondSELECT * FROM (select Dense_rank () over (order by vehicle_score Desc) rn,vin,vehicle_scoreFrom Main_vehicle where Vehicle_score are not NULL)Where Vin like '%ex046172% ';--Example:

Click Start, Program->oracle->database Configuration Assistant menu item Select a template: Global Database name global database name = database name + database domain name, such as global database name is: DEMO.SF Configure the

First build the table, org is the Department table, where OrgID indicates that the current department's Id,porgid is the ID of the parent department, the field type is an array type.This table with a parent-child relationship uses the Oracle connect

Echo Set data service Name set Dcibkdatasource=orclecho set the database user name to export set Dcibkuser=**misecho set the database user password to be exported set Dcibkpwd=**misset DCIBKPATH=%~SDP0 Backup Data Set

1. Operation Process of Oracle database First we need to figure out the entire operational flow of the Oracle database, as shown in. 650) this.width=650; "title=" "style=" border:0px;vertical-align:middle;margin:0px;padding:0px;font-size:15px;

/** * @author: Zhengwei * @date: 2017-04-28 * @desc: Summary of Stored procedure usage*/CREATE OR REPLACE PROCEDUREMyprocedure (p_idinch VARCHAR, P_status outVARCHAR)--p_id as input parameter, p_status as output parameter as ---Variable

InstallationReference http://www.cnblogs.com/gaojun/archive/2012/11/22/2783257.html Several questions:1. User Delete Issuep001:~ # Userdel-r OracleUserdel:account ' Oracle ' is currently on use.P001:~ # WHOweblogic:0 May 6 05:23Root pts/0 May 6 08:35