select setval(pg_get_serial_sequence('<your_table>', 'id'),1,false); 问题 https://stackoverflow.com/questions/62524324/get-all-sequences-with-current-values 1 2 3 4 select schemaname as schema, sequencename as sequence, last_value from pg_sequences 1 2 3 4 --max id :244 sele...
Theincrementspecifies which value to add to the current sequence value. A positive number will make an ascending sequence whereas a negative number will form a descending sequence. The default increment value is 1. [ MINVALUE minvalue | NO MINVALUE ] ...
ALTER SEQUENCE [ IF EXISTS ] name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER } ALTER SEQUENCE [ IF EXISTS ] name RENAME TO new_name ALTER SEQUENCE [ IF EXISTS ] name SET SCHEMA new_schema URL: https://www.postgresql.org/docs/14/sql-altersequence.html postgres...
Description When I open existing sequence it displays "Last value" - which is ok - it's the current value. After editing the Last value to 5 it makes the alter sequence: ALTER SEQUENCE public.testtable_id_seq RESTART 5; which really sets...
DROP SEQUENCE seq_test; CREATE SEQUENCE seq_test INCREMENT BY 2 MINVALUE 1 MAXVALUE 5 START WITH 2 NO CYCLE;INCREMENT BY: 每次序列增加(或减少)的步长 MINVALUE : 序列最小值,NO MINVALUE表示没有最小值 MAXVALUE : 序列最大值,NO MAXVALUE表示没有最大值 START WITH :以什么序列值开始 CYCLE: ...
PostgreSQL是一个开源的关系型数据库管理系统。它支持自动递增主键的功能,可以通过使用序列(sequence)来实现自动递增主键的插入。 在PostgreSQL中,序列是一种对象,用于生成唯一...
-- 定义一个序列 CREATE SEQUENCE user_info_seq START WITH 1 -- 序列起始值 INCREMENT BY 1 -- 序列步长 NO MINVALUE -- 序列最小值 NO MAXVALUE -- 序列最大值 CACHE 1; -- 创建表,并将主键id的默认值设为user_info_seq序列的下一个值 create table user_info ( id int default nextval('user...
select * from information_schema.sequences where sequence_schema = 'public'; 2)创建序列: create sequence seq_user_camera_version increment by 1 minvalue 1 no maxvalue start with 1; 3)建表,并用上面的序列作为主键自增序列 CREATE TABLE public.user_camera_version ( ...
4、晚上低峰期,正式切换前,修改下新表的sequence,将last_value调大些,防止切换时候id冲突了。我这里类似这样: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 alter sequence seq_t_new_idRESTARTWITH518500000; 5、低峰期切换表名 代码语言:javascript ...
Correlated Subquery –show you how to use a correlated subquery to perform a query that depends on the values of the current row being processed. ANY – retrieve data by comparing a value with a set of values returned by a subquery. ALL –query data by comparing a value with a list...