GRANT SELECT ON ALL TABLES IN SCHEMA myschema TO myuser; -- 如果需要增删改 GRANT SELECT, INSERT, UPDATE, DELETE ON TABLE mytable1, mytable2 TO myuser; -- 如果需要包含myschema下所有table和view GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA myschema TO myuser; 注意上面的...
PostgreSQL Infornation_schena中最常用的视图一般有以下几个:colunns视图,列出了数据库中的所有表列;tables视图,列出了数据库中的所有表(包括视图)﹔views视图,列出了所有视图以及用于构建或重新构建该视图的关联SQL。同样,在MySQL和SQL Server中也有这些视图,不过它们所含的列没有PostgreSQL那么多。 table 任何一个数...
or DELETE operations.INSTEAD OF triggers are fired once for each row that needs to be modified in the view.It is the responsibility of the trigger's function to perform the necessary modifications to the underlying base tables and, where appropriate, return the modified row as it will appear ...
variables show help on special variables\h [NAME] help on syntax of SQL commands, * for all commandsQuery Buffer\e [FILE] [LINE] edit the query buffer (or file) with external editor\ef [FUNCNAME [LINE]] edit function definition with external editor\ev [VIEWNAME [LINE]] edit view defin...
Informational (options: S = show system objects, + = additional detail) \d[S+] list tables, views, and sequences \d[S+] NAME describe table, view, sequence, or index \da[S] [PATTERN] list aggregates \dA[+] [PATTERN] list access methods … 基本元命令 根据我过去几年使用 PostgreSQL...
pg_read_all_stats pg_stat_scan_tables pg_read_server_files pg_write_server_files pg_execute_server_program pg_signal_backend(9rows)Time:0.955ms 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 但它确实是存在的,它默认拥有: ...
pg_statio_all_tables View "pg_catalog.pg_statio_all_tables" Column | Type | Modifiers ---+---+--- relid | oid | schemaname | name | relname | name | heap_blks_read | bigint | -- pg_stat_get_blocks_fetched(c.oid) - pg_stat_get_blocks_hit(c.oid) heap_blks_hit | big...
where abbreviated_grant_or_revoke is oneof:GRANT{{SELECT|INSERT|UPDATE|DELETE|TRUNCATE|REFERENCES|TRIGGER}[,...]|ALL[PRIVILEGES]}ONTABLESTO{[GROUP]role_name|PUBLIC}[,...][WITHGRANTOPTION]... 复制 ALTER DOMAIN 修改一个域的定义。 ALTERDOMAINname{SETDEFAULTexpression|DROPDEFAULT}ALTERDOMAINname{SE...
REFRESHMATERIALIZEDVIEW[CONCURRENTLY]name-- 支持并行计算 内置sharding功能接口,postgres_fdw 持续增强 支持外部表异步并行计算 场景: sharding分库分表的数据分析场景, 多个实例或sharding分片的数据需要并行分析的场景 价值: 提高多个实例并行计算的效率 DEMO: ...
pg_read_all_stats pg_stat_scan_tables pg_read_server_files pg_write_server_files pg_execute_server_program pg_signal_backend(9rows)Time:0.955ms 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 但它确实是存在的,它默认拥有: ...