I have a sql UPDATE statement in the plpgsql function. I now want to call the pg_notify function for each updated row, and am not sure if my solution is the best possibility.
I don’t know whe
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.
Large capacity NOSQL solution: Aerospike actual combat
Github has been focusing on providing news push services for developers for many years. Through a push SDK, the mobile terminal establishes a long connection with the server and maintains an online
NOSQL – Redis: Handling failover?
Redis really seems to be a great product with built-in replication and amazing speed. After testing, it definitely feels like a 2010 memcached replacement.
However, since memcached is usually
PowerDesigner generates SQL table name with quotation number solution
When powerdesigner connects to oracle11g, I created a table aaa
The generated SQL statement is:
drop table ” aaa” cascade constraints;
create table “aaa”
(
“id” INT not null,
“name” NVARCHAR
Receive the postgreSQL backend behavior after “Termination” (‘x’) after “Commit”
We run postgres server v9.2.8 and use epgsql (erlang) as the client library. In some cases, we produce in a production environment but cannot reproduce it in a development environment , We are losi
Which version of CQLSH is compatible with Cassandra 2.1.9?
The problem I am facing is populate_io_cache_on_flush is not a column defined in this metadata problem mentioned in the question.
According to 0700 in the second article of the answer For the
How to deal with changes in data over NOSQL
We are evaluating the upcoming projects of NoSQL. I tend to think about things in an RDBMS way and have difficulties in conceptualization and lack of standardization.
I know that copying data
OpenFire Source Code 25: Message Receipts and Offline News (below)
This article continues immediately above.
Redis-based message receipt. The main process is divided into the following steps:
1) Temporarily store the message in redis, and set the expir
PostgreSQL Change Configuration Question
Supplement: How to determine the path of the psql configuration file
①Switch to the psql user, here is thunisoft.
② There are many ways to determine the path, here are some commonly use
NOSQL – Use the relational database to carry out countless data – best practice
After reading the article written by Bret Taylor (Co-founder of FriendFeed, current CTO of Facebook) How FriendFeed uses MySQL to store schema-less data After the shocking article, I began to doubt