Skip to navigation Skip to content
Simon Technology Blog
  • Architecture
  • Cloud
  • Database
  • Develop
  • Hardware
  • Industry
  • Language
  • Mobile
  • Opensource
  • OS
  • Web
Main Navigation

Category: Postgresql

PostgresQL is an object-relational database management system (ORDBMS) based on version 4.2 of POSTGRES developed by the Department of Computer Science at the University of California, Berkeley. It has now been renamed to PostgreSQL. PostgreSQL supports most SQL standards and provides many other modern features: complex queries, foreign keys, triggers, views, transaction integrity, MVCC. Similarly, PostgreSQL can be extended in many ways, for example, by adding new data types, functions, operators, aggregate functions, and indexes. Use, modify, and distribute PostgreSQL for free, whether it is for private, commercial, or academic research.

Enforce PostgreSQL type conversion using Jooq tools

Is there a way to configure the JOOQ tool to use the PostgresSQL database’s ‘forcedTypes’ tag to convert smallint to Boolean without providing org.jooq.Converter implementation?

This is what

September 21, 2021By Simo Postgresql conversion, Force, Jooq, PostgreSQL, tool, type, useLeave a Comment

How to store video in the PostgreSQL database?

I store image files (such as jpg, png) in a PostgreSQL database. I found information on how to do that here.

Similarly, I want to store videos in a PostgreSQL database. I searched on the Inte

September 21, 2021By Simo Postgresql database, How to, Medium, PostgreSQL, storage, VideoLeave a Comment

PostgreSQL function card in the For loop

The function was stuck before the loop.

select * from scm_main.fn_connection_stations(1219646) Print the message “Start…” but not the message “…End”.

CREATE OR REPLACE FUNCTION
scm

September 21, 2021By Simo Postgresql card, cycle, function, Medium, PostgreSQLLeave a Comment

Question When you create a function in PostgreSQL, “Error: Syntax error is in or near” RowType “

The following is a simple process in PL/SQL

PROCEDURE emp_get_rec (emp_rec IN OUT NOCOPY emp_content%ROWTYPE)< br /> IS
v_cnt NUMBER;
BEGIN
SELECT COUNT(*)
INTO v_cnt
FROM emp_content
W

September 21, 2021By Simo Postgresql RowType, SyntaxLeave a Comment

PostgreSQL Update Self-Grocence

— Updating the automation sequence often requires Used

select setval(‘dm_table_column_id_seq’,(select max(id) from dm_table_column));

select setval(‘dm_table_id_seq’,(select max(id) from d

September 21, 2021By Simo Postgresql increase, PostgreSQL, Update, variableLeave a Comment

PostgreSQL – How to use node-postgres for bulk insertion

I am using express and node-pg to import excel files into the postgres database

Currently I loop through the excel rows and perform inserts for each row, but I I think this is not the right w

September 21, 2021By Simo Postgresql Batch, how to use, INSERT, Node, Postgres, PostgreSQLLeave a Comment

Dynamic data perspective query using PostgreSQL 9.3

I have a table called Product:

create table product (
ProductNumber varchar(10) ,
ProductName varchar(10),
SalesQuantity int,
Salescountry varchar(10)
); Sample value:

insert into p

September 21, 2021By Simo PostgresqlLeave a Comment

PostgreSQL – How to specify different column types according to the database type of Haskell GROUNDHOG?

Using the Groundhog library in Haskell, I want to implement a column type that uses “uuid” when the backend is Postgresql, otherwise just use “varchar” for any other backends. Although this should

September 21, 2021By Simo Postgresql Baskell, Column, database, Different, Groundhog, How, PostgreSQL, Specify, typeLeave a Comment

PostgreSQL – Docker Postgres is not running the init file in docker-entrypoint-initdb.d

Based on Docker’s Postgres documentation, I can create any *.sql file in /docker-entrypoint-initdb.d and let it run automatically.

I have init.sql contains CREATE DATABASE ronda;

In my

September 21, 2021By Simo Postgresql Docker, Entrypoint, INITDB, Initdb.d, not, ONTDB.D, PostgreSQLLeave a Comment

PostgreSQL Install and create users and create a database

One. Installation You can refer to the postgresql official website installation tutorial: https://www.postgresql.org/download/linux/redhat/

Centos 6 install postgresql 10

Add RPM:

September 21, 2021By Simo Postgresql creation, database, installation, PostgreSQL, userLeave a Comment

Posts navigation

Page 1 Page 2 Page 3 … Page 10
Recent Posts
  • Sencha-Touch-2 – Sencha Touch 2, Nested XML Analysis NodeValue
  • Add a separation line and format XML content
  • Is there a norm of simplified XML subsets?
  • Look at it when you write React
  • ReactJS – Present React Redux React-Router App to add the server to the Firebase hosted by the Firebase
Categories
  • Android
  • Apache
  • Apache Kafka
  • Asp
  • Auto-Test
  • Automated Build
  • Aws
  • Bitcoin
  • Browser
  • C & C++
  • C#
  • Centos
  • Cgi
  • Character
  • Cloud Service
  • Cocos2dx
  • Cordova
  • CSS
  • Data Structure
  • Delphi
  • Design Pattern
  • Dojo
  • Dubbo
  • ELK
  • Flex
  • football
  • Game
  • Hadoop
  • Hibernate
  • HTML
  • Hybrid
  • Intel
  • IOS
  • Ipad
  • iPhone
  • Java
  • Javascript
  • Jetty
  • JQuery
  • Jsp
  • Linux
  • Load Balance
  • Lua
  • Macbook
  • Macos
  • Mathematics
  • Micro Services
  • Monitoring
  • Motherboard
  • Mysql
  • Network Hardware
  • Network Marketing
  • Nginx
  • NodeJs
  • Nosql
  • Oracle
  • Os Theory
  • Performance
  • PHP
  • Postgresql
  • Power Designer
  • React
  • Redis
  • Regexp
  • Rom
  • Rss
  • Ruby
  • Search Engines
  • Shell Script
  • Silicon Valley
  • Silverlight
  • Software Design
  • Spring
  • Sql
  • Sqlite
  • Sqlserver
  • Storage
  • Storm
  • Surface
  • SVN
  • Swift
  • System Architecture
  • Tablet
  • Uncategorized
  • Unix
  • Visual Basic
  • Visual Studio
  • Web Crawler
  • WebService
  • Windows
  • Wireless
  • XML
  • ZooKeeper
Archives
  • October 2021
  • September 2021
  • August 2021
  • May 2021
  • April 2021
  • September 2020
  • September 2019
  • August 2019
  • June 2019
  • May 2019
  • April 2019
  • March 2019
© Simon Technology Blog 2025 • ThemeCountry Powered by WordPress