postgres decimal type

Original linkDeepgreen DB full name Vitesse Deepgreen DB, a scalable, massively parallel (often called MPP) data warehousing solution that originates from an open source Data Warehouse Project Greenplum DB (often referred to as GP or gpdb). So

The function of the Oracle To_char function is to convert a numeric or date type to a character type, and here's a detailed description of the use of the Oracle To_char function, which I hope will help you. The Postgres Format function provides an

The last one months when using PostgreSQL, often encountered ltree data, feel a bit awkward, but there is no way around. Today is determined to tidy up, later use more convenient.First, IntroductionLtree is an extended type of PostgreSQL, developed

How to use Oracle to_char function, oracleto_char The function of the Oracle to_char function is to convert the numeric or date type to the numeric type. The following describes the use of the Oracle to_char function in detail, hoping to help

ArticleDirectory I. Software Packages I. Software Packages 1. zlib-1.2.5.tar.gz 2. postgresql-9.0beta2.tar.gz Ii. Installation Steps 1. Tar zxvf zlib-1.2.5.tar.gz 2. CD zlib-1.2.5 3../configure-Prefix =/usr/local/zlib make

This article will introduce how to import and export the PG database, the main use is the PG comes with pg_dump, Pg_dumpall, Pg_restore, Psql and other commands, version is 9.4 (different versions of pg_dump \ Pg_ The restore option may be somewhat

A, create table-a new table CREATE [Temporary | TEMP] Table Table (Column type[NULL | Not NULL] [UNIQUE] [DEFAULT value][Column_constraint_clause | PRIMARY KEY} [...]][, ... ][, PRIMARY KEY (column [, ...])][, CHECK (condition)][,

Basic Environmentsqoop:sqoop-1.4.5+cdh5.3.6+78,hive:hive-0.13.1+cdh5.3.6+397,hbase:hbase-0.98.6+cdh5.3.6+115Introduction to Sqool and Hive, HBaseSqoopSqoop is an open source tool used to transfer data from Hadoop and relational databases to and from

Python Database FrameworkMost database engines have Python packages, including open source packages and commercial packages. Flask does not restrict what type of database package you use, so you can choose to use MySQL, Postgres, SQLite, Redis,

Client Authentication is performed by a configuration file (usually namedPg_mirror.confIt is stored in the data directory of the Database Cluster. HbA indicates "host-based authentication", that is, host-based authentication. InInitdbWhen