I use the copy command in Postgresql, I have a line of data in a text file, it is the separator, I want to copy it to the db table. I received an error saying:
Error: Invalid byte sequence encodin
Category: Database
The database is a warehouse that organizes, stores and manages data according to the data structure. It was created more than 60 years ago. With the development of information technology and the market, especially after the 1990s, data management is no longer just It is to store and manage data, and transform it into various data management methods required by users. There are many types of databases, from the simplest tables that store various data to large-scale database systems that can store massive amounts of data. They have been widely used in all aspects.
PostgreSQL – put the explain result in the table?
I saw from Postgres 8.1 docs that EXPLAIN generated data similar to the table:
Prior to PostgreSQL 7.3 , the plan was emitted in the form of a NOTICE
message. Now it appears as a query resul
PowerDesigner creates an index
http://www.qeefee.com/article/ws00000400
http://blog.csdn.net/imlmy/article/details/8082383
Export into sql statement:
First select the database to be converted into a physical mo
PostgreSQL Intellij: fatal: Role XXX does not exist
I can connect to psql and do what I want instead of IntelliJ.
PostgreSQL version: postgres (PostgreSQL) 9.6.1
IntelliJ version: 2016.3.1 IntelliJ configuration:
URL: jdbc:postgresql://l
PostgreSQL – AWS Database Single Columns Add a lot of data
I am using PgAdmin to retrieve data from an AWS database. This works well. The problem is that I set a column to True after retrieving the corresponding row and initially set it to Null. Doing so w
PostgreSQL – Use postgres to set the ID array as the foreign key?
Similar to this question – Postgres creating a Table with an array of foreign keys
Any updates about this situation, even new ones with this feature Beta?
The current patch still has ma
MySQL Backup – Back up all databases in turn using mysqldump
In some scenarios, the databases need to be backed up separately, and in some scenarios, all the databases need to be backed up together. Hereby we organize this backup script
#! /bin/bash
#
What is the difference between NOSQL and the column-oriented database?
The more you read about NoSQL, it starts to sound like a column-oriented database.
What is the difference between NoSQL (such as CouchDB, Cassandra, MongoDB) and column-oriented databases (su
PostgreSQL11 installation
There are two installation methods for postgresql11: binary source code installation, rpm package installation
wget https: //ftp.postgresql.org/pub/source/v11.5/postgresql-11.5.tar.gz
./confi
NOSQL database for storing big files?
I need to store very large (more than 512Mb) binary files in a NoSQL database. What special NoSQL database implementation allows? No experience, but Mongos GridFS is the only one I’ve heard of,