postgresql sequence nextval

In-depth interpretation of sequences in PostgreSQL and their related functions, and interpretation of postgresql I. Introduction A sequence object (also called a SEQUENCE generator) is a special single-row table created using create sequence. A

-- 这里的"test"专指postgre中的表空间(模式)，默认的表空间是"public" DROP SEQUENCE if EXISTS "test"."testseq_id_seq"; CREATE SEQUENCE "test"."testseq_id_seq" INCREMENT 1 MINVALUE 1 MAXVALUE 9223372036854775807 START 1 CACHE 1; DROP TABLE if EXISTS "test"."testtable";

Sequence is a sequence of numbers automatically added by a database system in accordance with certain rules. This sequence is generally used as the surrogate primary key (because it is not duplicated) and has no other meaning.Sequence is the

First, Introduction A Sequence object (also called a sequence builder) is a special Single-line table created with the Create SEQUENCE. A sequence object is typically used to generate a unique identifier for a row or table. Second, create a

This article will share with you a summary of the Sequence usage of Oracle, DB2, and PostgreSQL. I hope this method will be helpful to you. Sequence is a Sequence of numbers automatically added by the database system according to certain rules. This

Sequence is a sequence of numbers that the database system automatically increases according to certain rules. This sequence is generally used as the surrogate primary key (because it does not repeat) and has no other meaning. Sequence is the

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

I need to use DB2 recently, but I have a lack of understanding about the sequence of DB2. I have found this blog post while searching for a large amount of data. I think it is very detailed, special Collections.     Original blog:

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

highgo=# Create sequence T_seq increment by 1 start with 1;   CREATE sequencehighgo=# Select Nextval (' T_seq '); --View the next value in the sequence Nextval---------1 (1 rows of records) highgo= #create table t (id int default nextval (' T_seq ')