SELECT nextval(pg_get_serial_sequence('<your_table>', 'id')) AS new_id; --设置自增列的下一个值: 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 schema...
PostgreSQL CREATE SEQUENCE examples Let’s take some examples of creating sequences to get a better understanding. 1) Creating an ascending sequence example This statement uses theCREATE SEQUENCEstatement to create a new ascending sequence starting from 100 with an increment of 5: ...
postgres=#createsequence seq_tab3 incrementby10000startwith3;CREATESEQUENCE postgres=#createtabletab1 (idintprimarykeydefaultnextval('seq_tab1')check(mod(id,10000)=1), infotext);CREATETABLEpostgres=#createtabletab2 (idintprimarykeydefaultnextval('seq_tab2')check(mod(id,10000)=2), infotext);...
链接:https://pan.baidu.com/s/1mMpcMOSOVxcZ7gcxXWzrUQ?pwd=mv3j 提取码:mv3j 一、数据库集群的逻辑结构 1.1 天然集群 数据库集群的逻辑结构 PostgreSQL天然集群,多个集群可以组成集簇,有点类似军队的连、团、旅这样的组织规则。对于我们日常学习使用的单节点则是单个集簇单个集群,自己就是集群。 PostgreSQL...
ALTER SEQUENCE 修改一个序列生成器的定义。 ALTERSEQUENCEname[INCREMENT[BY]increment][MINVALUEminvalue|NOMINVALUE][MAXVALUEmaxvalue|NOMAXVALUE][RESTART[WITH]start][CACHEcache][[NO]CYCLE] 复制 ALTER TABLE 修改表的定义。 ALTERTABLE[ONLY]name[*]action[,...]ALTERTABLE[ONLY]name[*]RENAME[COLUMN]col...
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO username; # 授予public模式中所有序列的所有权限给用户: GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO username; 部分实例 # 使用pg_database_size()查看数据库的大小 xxf=# select pg_database_size('xxf'); pg_database_size --...
you are doing. --ignore-start-with: ignores START WITH modifications on SEQUENCEs(default:...
Wal receiver writes the WAL data sent by wal sender to WAL segments. It is the startup process on slave that replays the data written to WAL segment. And then the streaming replication begins. Note: Log Sequence Number, or LSN, is a pointer to a location in the WAL. Streaming ...
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO username; 6)授予public模式中所有序列的所有权限给用户: GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO username; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. ...
SQL Server到PostgreSQL的数据迁移时出现了问题,返回的错误为:invalid byte sequence for encoding "UTF8": 0x00。 经查证pg源代码,该问题引起的原因是sql server的字符类型字段中含有空字符\0,该字符在pg中不支持。 问题重现: 1、PG客户端: 代码语言:javascript ...