Oracle

To_dateTo_date (Char[,fmt[nlsparams])Char: the string to convertFMT: FormatNlsparams: Specifying a Date languageFor example: Enquiries about employees who have entered the workforce after 2002 years:SELECT * from emp where hiredate>to_date (' 2002-01

>>>>>>>>> Rman_archivelog.bat CD/D D:\app\product\11.2.0\dbhome_1\BINRman Target sys/[email protected] Catalog rman/[email protected] @ ' F:/DELETE.RMN '>>>>>>>>> Execution Script:delete.rmn run{Allocate channel T1 device type disk;Delete noprompt

Avatar Update Cheats "Oracle OCM profile Link:http://education.oracle.com/education/otn/Sliu.htm  Abstract: Oracle OCM certification is a top-tier certification for Oracle's database domain, and any qualified technical person will be given the

--------------------------------------------------------------------------------------------------------------- --------This afternoon, a colleague through the DOS import DMP file, has been in the Sqlplus interface constantly enter the user name,

Oracle uses regular expressions without these 4 functions:1, Regexp_like2, Regexp_substr3, Regexp_instr4, Regexp_replaceLook at the function name and guess what the use is.Regexp_like can only be used for conditional expressions, similar to like,

First of all, to carry out the PSU, the first thing is to seriously look at readme.html, from the inside we can know very detailed upgrade steps have been back to the program. And avoided a lot of pits.Before you proceed with the PSU, first confirm

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++Simple steps to install ORACLE10GR2 on rhel5.5x64Method 1:last login:wed 20:28:59 from 192.168.1.1[Email

ArcSDE 10.2 for Oracle 12C Installation considerations1. Environmental descriptionOracle 12C is supported starting from ArcSDE10.2.1.2, Installation precautionsThe SDE space database can be installed in the PDB and created using the Create

Find the top 10 poor performance SQL.SELECT * from (SelectfromorderbyDESC ) where ROWNUMView a running session with a large IOSELECTSE.SID,SE.SERIAL#,PR. Spid,se.username,se.status, Se.terminal,se.program,se. Module,se.sql_address,st.event,st.

The following code can be added to the package to modify the language parameters of the current session.--Set Session language     procedure p_set_nls_language (pi_nls_lang in varchar2  default  ' Simplified chinese ')  IS    BEGIN     

In order to further the left outer connection, we do some tests, and the outer joins are written in several forms, and we can trace to the final SQL conversion form by 10053.--Initialize dataCREATE TABLE A(ID number,Age Number);CREATE TABLE B(ID

After you open the database with Resetlogs before oracle10g, the previous backup cannot be used for recovery. That is, you cannot perform a recovery across resetlogs points in time. Therefore, a full library backup is required immediately after

It seems that some people still do not understand the true meaning of the schema, and now I have to tidy up a bit, I hope to be helpful to everyone.Let's start by looking at their definition:ASchemais a collection of the database objects (used by a

[Original link] http://nvd11.blog.163.com/blog/static/200018312201301310585758/[Original VIDEO] Http://www.jiagulun.com/thread-2674-1-1.html1. Database filesThe Oracle database file can be divided into 3 types, namely:control files: storing the

SUBSTR () and SUBSTRB () differ in the interception of Chinese characters, a Chinese character may account for 2 or 3 characters, substr () the length of the Intercept refers to the length of the string, the length of the SUBSTRB () is the length of

The people who are accustomed to the key fallback history input in Linux must also hope to achieve the same effect in sqlplus, but unfortunately, Sqlplus does not provide many convenient shortcuts, this time we need to install another plugin to

[Oracle] RAC deletes a node Environment: OS: OEL5.6 RAC: 10.2.0.1.0 There are currently three rac1, rac2, and rac3 nodes. The following describes how to delete a rac3 node. 1. Delete the database instance on the rac3 Node [Oracle @ rac1 ~] $

Oracle clears daily backup data and recovers tables accidentally deleted I. Clean up data tables for routine backup 1. Background: The system tablespace usage has exceeded 90%. As a result, a related junk data is cleared. 2. You need to clear the

How to check whether the SQL statements are correct when executing large SQL statements in Oracle stored procedures? A large SQL statement is sometimes used in the preparation of a stored procedure in Oracle. However, you cannot see the SQL

DBA_Oracle LogMiner analyzes redo and archive logs (CASE) (Oracle records any operation logs and how to analyze logs), dba_oraclelogminer 2014-08-19 BaoXinjian I. Summary Oracle LogMiner is a very useful and free analysis tool that allows you to