BIEE11G Rpd merge and biee11grpd merge Rpd merge To merge two rpd files, you need to use three rpd files. One is blank. rpd: This is a blank rpd, which acts as the "original primary Archive" When biee is merged; the other is modified.
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Big Data Table query optimization solution and data table optimization solution If a large table contains millions, tens of millions, or even hundreds of millions of data records, the query results should be queried in real time within 10 seconds.
Steps for building a mysql master-slave ClusterPrerequisites: Four mysql databases need to be installed on linux, and the corresponding information must be configured. Mysql 01: master mysql 02: slave database slave01 mysql 03: slave database slave02
Bbed modify undo segment status (ORA-01578), bbedora-01578 ZBDBA@orcl11g>select * from zbdba;select * from zbdba *ERROR at line 1:ORA-01578: ORACLE data block corrupted (file # 3, block # 1449)ORA-01110: data file 3:
[MongoDB] building a Mongo database replica set (similar to a cluster) on the windows platform (II), mongodbmongo In the previous blog, we mainly explained how to build a mongodb replica set on the windows platform. Detailed blog address: Due to
Use bbed to modify data and bbed to modify data Bbed is a powerful tool that allows us to directly modify the corresponding content from the data file without bypassing oracle. ZBDBA@orcl11g>select * from emp; EMPNO ENAME JOB
Inconsistent recovery of data file headers and inconsistent recovery of Data Headers SYS@orcl11g>alter database datafile 6 online;alter database datafile 6 online*ERROR at line 1:ORA-01113: file 6 needs media recoveryORA-01110: data file 6:
Newlisp tracks jobtracker status, newlispjobtracker The basic idea is to use newlisp to regularly download the jobtracker page, use regular expressions to parse the table elements in html, and then obtain the latest mapreduce status. Each time the
[Recovery, 1] redo log recovery situations, redo logsRecovering After the Loss of Online Redo Log Files If a media failure has affected the online redo logs of a database, then the appropriate recovery procedure depends on the following
Oracle query optimization and oracle Optimization 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 conditions that can
MySQL full-angle conversion to half-angle, mysql full-angle conversion to half-AnglePreface:When a user entered a fullwidth mobile phone number during registration, the text message system failed to send the text message based on the mobile phone
Hierarchy is an idea and an idea.The database has a three-tier mode and two-tier image. This layer is designed as needed and has certain functions for each layer. This design concept of "performing their jobs" is not only used in databases, but also
Meaning of CONNECT role in Oracle db, oracleroleFrom: Complete Checklist for Manual Upgrades to 11gR2 (Document ID 837570.1) This article contains the following text: From Oracle 10.2, 'connection' role only supports des 'create session'
Concurrency problems: access to large data volumes and access to concurrent data volumes Today, I suddenly noticed this problem. I have read a lot from the Internet and have benefited a lot. Record it and review it later ~ I have encountered this
Sqlplus is prohibited in Oracle db. Record it first: How to Disable a SQL * Plus Connection for a User (Documentation ID 124121.1) Use the sqlplus/nolog command in the DOS window to log on to oracle. The result is similar to "sqlplus is not an
/Var/tmp/. oracle and oracle listener (listener) Test the functions of/var/tmp/. oracle ~ --- View/var/tmp Permissions [Root @ lixora var] # llTotal 164...Drwxrwxrwt3 root 4096 Oct 31 tmp [Root @ lixora. oracle] # llTotal 0Srwxrwxrwx 1 oracle10g
An error ora-28056, oracleora-28056 reported when an oracle instance is started under windows In oracle in windows, when an instance is started, it will write startup information to the event viewer of the windows operating system-Application Part,