sequence nextval postgres

Install PostgreSQL 9.6 For example:?InstallationInstall the repository RPMYum Install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-redhat96-9.6-3.noarch.rpmInstall the client PackagesYum Install postgresql96Install the

I have a lazy idea. How should this good idea begin? Well, this is an appropriate little madness: Why not build our own MongoDB version directly on the basis of postgres? It sounds far-fetched, but it's simple and real. When the NoSQL movement was

1.createdb database nameGenerate Database2.DROPDB database nameDeleting a database3.CREATE User NameCreate user4.drop User NameDelete User5.SELECT usename from Pg_user;View System User Information\du7.SELECT version ();View version Information8.psql

PureftpdIt is an open source code software that is used on multiple types of Unix and complies with the GPL protocol. The following describes how he and PostgreSQL are used in combination. First, we should know what PostgreSQL is? PostgreSQL is an

E-commerce This paper demonstrates the application of PHP and Postgressql in e-commerce through a simple Web application. Not long ago, if a serious web application was to be structured, it meant buying expensive cold Fusion licenses and a

Tutorial on creating a MongoDB copy based on PostgreSQL, postgresqlmongodb I have an idea of laziness. How can I start with this idea? Well, this is an appropriate little crazy: Why don't we build our own MongoDB version on the basis of ipvs? It

ObjectiveWhen data is partitioned, it is typical for a sub-database to have a global ID generated problem. Simply generating a global ID is not a challenge, but the generated ID usually satisfies some of the requirements of the Shard:There can be no

PostgreSQL e-commerce This paper demonstrates the application of PHP and Postgressql in e-commerce through a simple Web application. Not long ago, if you were to architect a serious web application, it would mean buying a costly cold Fusion

An ID generation policy must be assigned to each user in the system for subsequent user identification. This demand should be very common and will not be a problem for systems with a small number of users, but it is not a simple problem for Internet

Objective There are requirements in the project to vertical table, that is, according to the time interval to split the data into N tables, PostgreSQL provides the function of the partition table. A partitioned table actually divides a large