upgrade postgres

Found an article on the network http://www.linuxidc.com/Linux/2010-04/25232.htm, as follows: Ubuntu 9.10 under PostgreSQL 8. 4 solutions to forgotten passwords Ubuntu9.10 Next PostgreSQL 8. 4 Solutions to forgotten passwords:1. Edit the pg_hba.conf in the83# IPV4 Local connections:$ host All 127.0.0.1/32Trust[email protected]:/etc/postgresql/8.4/main$ sudo vim pg_hba.conf[email protected]:/etc/postgresql/8.4/main$ sudo/etc/init.d/postgresql-8.4restart* restarting PostgreSQL8.4Database Server2. [

Function Introduction POSTGRES-XC/XL/X2 is an open source project. It provides a multiple-master synchronous, transparent, PostgreSQL cluster solution. Unlike other cluster tools, it has a strong scalability when writing data, and introduces the concept of cluster environment with multiple master architectures. Multi-master means that when writing data, it is no longer subject to a single master node and will be well improved in writing speed.

: maxspeed:winter=* means the maximum speed limit in winter Postgressql Database Installation Open source free database: PostgreSQL Download Installation Tutorial _ Baidu Experience OSM data Extraction Download Osm:http://dev.openstreetmap.org/~bretth/osmosis-build/osmosis-latest.zipdownload China map dataHttp://download.geofabrik.de/asia/china.html Data cropping Regional cut, cut the map of China into Wuhan map: Osmosis--READ-PBF file= "CHINA-LATEST.OSM.PBF"--used-node--bounding-box left=113.9

Statement:Postgres-version 9.2.5* Specific installation methods refer to the following link:1. http://blog.scimpr.com/2014/08/11/ubuntu12-04%E3%81%A7postgresql%E3%81%AE%E5%85%A8%E6%96%87%E6%A4%9C%E7%B4% a2%e3%80%9ctextsearch_ja/* Summary of problems encountered during installation:1. The "Make use_pgxs=1" Command error occurred when the link operation was performedTip: "Pgxs.mk File not found" error, reason, missing reference rpm package.Execution: Yum Install

process them separately according to the various commands of the client.The client initiates the request, and the PG server initiates a postgres access process for that request, which establishes a connection for that client through access. This postgres access process enters an infinite loop, waits for the client to request and pass the service for it until the process terminates, connecting the fracture.

Label:Recently the company requested to back up the database, so we looked up the comparative information. Don't say much nonsense, into the subject. Objective: To regularly back up the Postgres database under Ubuntu, and to pack and upload to the designated FTP server. After finding the information, the workaround: ① Write a backup database, package compression, upload the specified FTP script. ② adds the script to the Ubuntu scheduled Tasks crontab.

Label:1. Switch to Postgres user;2. Enter: Psql, enter the client psql of PostgreSQL;3.\l View all the current databases;4.psql Database1 connected to database1 this database;5. \dt View all the tables of the currently connected database (DATABASE1);6. \d Table1 View the table structure of table table1;Also: Modify a user's password in ubuntu:1. Switch to the root account;2. passwd account name;3. Follow the instructions, enter a new password, complet

Label:Excerpt from: http://www.cnblogs.com/yjf512/p/4402096.html The view in Postgres scans the sub-table when it is queried, while materialized views actually save the data in a single table. Materialized views are something that is only after 9.3. Create a View CREATE OR REPLACE VIEW student_view asselect *from student left JOIN teacher on= teacher.id; Create a materialized view CREATE VIEW student_view_m asselect *from stud

1. Save Excel as a CSV2. Open CSV format with TXT3. Encoded in UTF-8 format, save as Blacklist20141231.csv4. Create a tableCreate table backlist_20141231 (date varchar (20), mobile number nvarchar (20), channel nvarchar (50));5. Using the Copy command, copy backlist_20141231 from ' D:/blacklist20141231.csv ' delimiter as ', ' csv quote as ';This error, is not carefully caused, from ' D:/blacklist20141231.cs ' should be from ' d:/blacklist20141231.csv '; change it.6. Now the encoding format or GB

Tags: Linux shell postgresIn the work often to develop and test import and export some test database, so wrote a script for easy operation.The company is currently using the postgres9.3 database.#!/bin/bash #定义一些变量和操作命令 dbs= "DB1NBSP;DB2NBSP;DB3NBSP;DB4" Expdb_cmd=/usr/pgsql-9.3/bin/pg_dump DBCMD=/usr/ Pgsql-9.3/bin/psql dbuser=postgres dbsvr=mydbhost1 #导出数据库 functionexportdb () {read-p " inputdatabaseusernametoexport: "srcdb read-p" inputexportpath:

After postgres8.3, the default transitions between field data are canceled. If a data transformation is required, in the Postgres database, we can use "::" To convert the field data into a type. The actual "::" is called by the cast function. exactly what fields can be converted between data? This problem can be answered only by studying the cast function. The information of the cast function is managed in the System Pg_cast table. through the query

creating a new system table and using the old user table. It is divided into two ways: in-place upgrade and non-in-place upgrade, in-place upgrade needs to specify the--link parameter.Here are the general steps for upgrading using Pg_upgrade:An example is an upgrade from 9.4.11 to 9.6.2.1. Install the new version of t

Label:I/O optimization1 Opening NoatimeMethod: Modify/etc/fstab2 adjusting pre-readMethod: View sudo blockdev--GETRA/DEV/SDASet sudo blockdev--setra 4096/dev/sdf (4,096 sectors, or 2M)3 Adjusting Virtual memory parametersA method: View Cat/pro/sys/vm/wappinessSet vi/etc/sysctl.conf add Vm.swappiness=0 vm.overcommit_memory=2 (0 heuristic policy, total success of 1 calls, total failure of 2 calls)Effective sysctl-pB Method:4 Write Cache Optimizations5 adjusting I/O schedulingI/O optimization of th

Upgrade _ Oracle graphical upgrade (dbca database creation after upgrade)-upgrade 10.2.0.1.0 to 10.2.0.5.0 and dbca10.2.0.5.0 **************************************** ******************************** ************** Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the

mysql , h2 , oracle postgres etc For example, I'm using postgres database, then select the beginning. Create: The meaning of creating a database, the corresponding must have drop,upgradestep Identifier, the operation of the time to select the corresponding can. The last identifier of the history , because SQL created the table when the time is divided into three large SQL scripts. The 1.

Tags: postgres pg_upgrade pg_dumpallOne, database upgrade 9.4 to 9.51.pg_dump Import and export (used when data volume is small)Postgres User Login$ pg_dumpall > Db_export.out$ env|grep LANGLang=en_us. UTF-8If the database character set is en_US. UTF-8, the system character set is ZH_CN. UTF-8The import step isPostgres User Login$export Lang=en_us. UTF-8$psql-F D

Statement ************************************************************** *********Original works, from the "Blue Blog" blog, Welcome to reprint, please be sure to indicate the source, otherwise hold the copyright legal responsibility.Please leave a message or email ([email protected]) to indicate the error.This reprint must be kept here: http://blog.csdn.net/huangyanlong/article/details/39677103Deep Blue Blog: Http://blog.csdn.net/huangyanlong****************************************************

Currently, the client tool is also a WinForm window program, file structure:Figure 11, two config file, one is connected to the local development environment in the database, another basic parameter configuration fileA, db.config for the database connection content as follows:Currently, only the MSSQL database is adhered to ;B, YBF. AutoDeployManageTool.exe.config parameter configuration, currently only for the configuration of FTP parameters, operation in accordance with the server-side FTP par

Are you not satisfied with the existing Windows 7 version on your computer? Then we will upgrade the version. Is it necessary to reinstall the system? Of course not required. Use Windows 7's built-in windows anytime upgrade to easily upgrade the system version. If you use windows anytime upgrade to verify the key, th

Tags: style blog http color io os using AR strongStatement **********************************************Original works, from the "Blue Blog" blog, Welcome to reprint, please be sure to indicate the source, otherwise hold the copyright legal responsibility.Please leave a message or email ([email protected]) to indicate the error.This reprint must be kept here:http://blog.csdn.net/huangyanlong/article/details/39673551Deep Blue Blog: Http://blog.csdn.net/huangyanlong******************************