Programmer Help

Article directory Special characters in shell regular expression Basic regular POSIX character class Meta character Procedures for manipulating text grep: row searcher cut: operate by column Sort: sort uniq: de duplication wc: count tee: bidirectional reorientation tr: delete or replace text join ...

GreenPlum cluster setup and installation steps Additional reference: https://gp-docs-cn.github.io/docs/best_practices/sysconfig.html, https://blog.csdn.net/king13127/article/details/83989704 1, Installation instructions 1.1 environmental description Operating system: CentOS 6.x 64bit Greenplum:Greenplum ...

Original reprint address: https://www.cnblogs.com/zhang-ke/p/9009531.html Introduction: This article is based on greenplus 5.7, greenplus-cc-web4.0 installation. 1, Install the database monitored by greenplus and create users (install under gpadmin user) 1. Open the greenplus database [gpadmin@master ~]$ gpstart -a 2. Ins ...

Greenplum has iterated several small versions at present in version 6. With the update of the version, bug s are constantly fixed. Friends who are going to try it can start. As the first post of the first working day of the new year, it must start from the "groundbreaking" 6.0. The following content is relatively simple, suitable for ...

Label PostgreSQL, Greenplum, wide table, relationship, loop, performance background In GPDB, do you use relational storage or large wide tables? Relational storage, when querying the contents of other tables, needs JOIN completion. JOIN may need to redistribute data. Dimension tables can solve the problem of redistributing a large number of ...

Labels (space delimited): GreenPlum In the process of configuring GreenPlum, you need to pay attention to the following points: Find the installation package Installation dependency, Gun version needs attention Detailed installation procedure reference Greenplum installation introduction I am a computer virtual machine insta ...

11. Backup and Recovery This chapter describes backup and recovery of database and user data in GPDB system. GP recommends backing up the database regularly. Backup can be used to restore and rebuild the GPDB system in case of system failure or data corruption. In addition, you can use backup to migrate GPDB data from one system to another. Pa ...

If you want to be a qualified database administrator, you should first have solid basic knowledge and problem-solving ability. Referring to Pivotal's official FAQ, this article answers some common questions that are often encountered in the use and management of Deepgreen & Greenplum. I hope it will be helpful to you. If you have more quest ...

Introduction to MADlibMADlib is an open source machine learning library cooperated by Pivotal and the University of Berkeley. It provides precise data parallel implementation, statistics and machine learning methods to analyze structured and unstructured data. The main purpose is to expand the analytical capability of the database, which can be ...

If you want to be a qualified database administrator, you must first have solid basic knowledge and problem handling ability.Referring to Pivotal's official FAQ, this paper provides ideas/answers to common problems encountered in the management of Deepgreen & Greenplum.I hope it will help you. If you have more questions to share with your ...