I have two simple tables of person and address, inserted through the updatable view person_details.
Relations and triggers
CREATE TABLE address (
id serial PRIMARY KEY,
street varchar
Month: September 2021
NOSQL – Should I use Redis to store a lot of binary files?
I need to store a large number of binary files (10 – 20 TB, each file ranges from 512 kb to 100 MB).
I need to know whether Redis will work on my system.
I need the following attributes in m
PostgreSQL copies the data into the table
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
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