Oracle

Prior to Oracle 9i, the sorting of Chinese was by default sorted by 2-binary encoding. Several new options were added at 9i: Sort by Chinese pinyin: Schinese_pinyin_m Sort by Chinese radicals: schinese_radical_m Sort by Chinese

Character function--return character valueThese functions all receive parameters of the character family type (except CHR) and return the character value. In addition to the special instructions, most of these functions return a numeric value of

Problem Description:1:oracle database connection suddenly becomes very slow when landing; Sqldeveloper link database is slow;2:kettle-spoon ETL Program Access database, task execution times: Database connection IO error: Socket Time out error.Solve:1

get "" qq:313596790 "Free support Updates" three databases mysql Oracle sqlsever More professional, more powerful, suitable for different user groups "New Video tutorial for this system, hands-on teaching development of a module, quickly master

Find a bunch of references online, either vague or not. I tinker with a bunch can be normal storage. Take a look at the end:Insert INTO Cp_v_info "+" (ID, "+" project_id, "+..."V_info," +..."VERSION" VALUES (?,?,?,?,?,?,?,?,?,?, "+"?,?, Empty_clob ()

The database is configured with NET configuration in the Oracle installation configuration, and today we introduce the second configuration method, net Manager configuration.Find our net Manager shortcuts first, as belowThis is access to the Net

ORACLE 11.2.0.3 RAC INSTALL2013-06-09 __yoonMount Image:Mkdir/media/diskMount/dev/cdrom/media/diskInstall all packages that Oracle-linux depends on:Vi/etc/yum.repos.d/public-yum-el5.repo[Oel5]Name = Enterprise Linux 5.7 DVDbaseurl=file:///media/disk/

Oracle Character Set1, IntroductionORACLE The database character set, which is Oracle globalization support (globalization), or national language Support (NLS), is used to store, process, and retrieve data in its native language and format. With

Oracle's rounding and rounding functions--floor,round,ceil,trunc usage instructions(2011-04-06 16:10:35)reproduced Tags: talk Category: Fade Away floor--the integer digits of a given numberSql> Select Floor (2345.67)

Original address: http://www.cnblogs.com/quanweiru/archive/2012/11/09/2762223.html1 . The difference between for update and for update nowait: First of all, if only Select,Oracle will not add any lock, that is, Oracle to Select read the data there

Oracle Error: ORA-00054: The resource is busy and requires the specified NOWAITThe problem is as follows:Sql> Conn Scott/[email protected]_database Connected to Oracle database 11g Enterprise Edition Release 11.1.0.6.0 Conne CTED as Scott。。。。。。sql>

Just to the company, the leader gave me a task: The DB2 database data into the Oracle database, I try the following methods, very fast. Also import the Db2jcc.jar, Db2jcc_license_cu.jar, ojdbc14.jar three corresponding jar packages.Data migration:1,

Transferred from: http://blog.csdn.net/cuker919/article/details/8767328Recently, due to the high CPU usage of the database, VCs often switch automatically, causing many problems.Recently learn about the database AWR Analysis database SQL execution

Prior to the installation of CentOS Mirror, did not try to use the network function, today just again using CentOS, and then ping the network, found that the failure, using Ifconfig to view the network card, found the network card IPAs: 127.0.0.1,

The cause of triggering this error and related factorsThis is due to the default profile setting "Password_life_time=180 days" in oracle11g. In Oracle 11g isThere are password expiration issues.Second, the error phenomenon:ORA-28000 errors are

Oracle is the name of the manufacturer and the name of the database product. such as Sybase's Sybase database. and Microsoft's database product is called SQL Server.PL/SQL is the name of an Oracle database that is used by the language. Microsoft's

A recent project involving SQL Server 2008, because of business requirements, wanted to establish a unique index, but found that in SQL Server, a unique index field cannot have multiple null values, and the following is an error message:CREATE

Some Oracle database query optimization suggestions are comprehensive, oracle Database 1. To optimize the query, try to avoid full table scanning. First, consider creating an index on the columns involved in where and order. 2. Try to avoid null

Basic query optimization and subquery Optimization in Oracle databases 1. Reasonably sort query Conditions Oracle uses the bottom-up sequence to parse WHERE data. From the perspective of performance optimization, we recommend that you write the

Oracle SQL Developer Connection error (ORA-12505), developerora-12505   Oracle SQL Developer Connection error (ORA-12505)     I had a problem with my Oracle database, and I finally got it done. Today I have created another DBA administrator