GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA public TO myuser; SELECT: 读取数据 INSERT: 插入数据 UPDATE: 更新数据 DELETE: 删除数据 授予对特定模式的访问权限 如果你只想授予 myuser 对特定模式下的表的权限,你可以如下配置: GRANT USAGE ON SCHEMA public TO myuser; GRANT SELECT, ...
grant select on all tables in schema public to dbuser;--给用户读取public这个schema下的所有表 GRANT create ON schema schemaname TO dbuser;--给用户授予在schema上的create权限,比如create table、create view等 GRANT USAGE ON schema schemaname TO dbuser; grant select on schema public to dbuser;--...
You are now connected to database"db01"asuser"user01".db01=>create table db01.t(id int);CREATETABLEdb01=>show search_path;search_path---"$user",public(1row)db01=>\d ##此时查看不到 在db01 schema 创建的表。需要设置 search_path Listofrelations Schema|Name|Type|Owner---+---+---...
https://github.com/citusdata/citus-example-ad-analytics 让我们从考虑这个应用程序的简化schema开始。该应用程序必须跟踪多家公司,每家公司都运行广告活动。广告系列有许多广告,每个广告都有其点击次数和展示次数的关联记录。 这是示例schema。稍后我们将进行一些小的更改,这使我们能够在分布式环境中有效地分发和隔离数...
https://www.dbrnd.com/2015/10/postgresql-script-to-find-a-missing-indexes-of-the-schema/ 上面给出的语句就是大概率从网上搜到的语句和信息,首选我们先不说它能不能运行,我们先分析一下它大概的率的想法出发点是什么。pg_stat_all_tables表是 pg_stat_user_tables 和 pg_stat_sys_tables 两个表合成...
DB=# SELECT * FROM information_schema.tables WHERE table_name='ff_v3_ff_basic_af'; 查看表结构 DB=# \d tablename DB=# select * from information_schema.columns where table_schema='public' and table_name='XX'; 查看索引 DB=# \di ...
查询所有schema,必须到指定的数据库下执行select * from information_schema.schemata; SELECT nspname FROM pg_namespace; \dnS查看表名DB=# \dt --只能查看到当前数据库下public的表名 DB=# SELECT tablename FROM pg_tables WHERE tablename NOT LIKE 'pg%' AND tablename NOT LIKE 'sql_%' ORDER BY ...
ORDER BY schema_name, table_name; reltuples provides an estimate of the row count for each table in PostgreSQL. Examples and Code Explanation: 1. Using pg_stat_user_tables to Retrieve Exact Row Counts Code: -- Select table names and row counts from pg_stat_user_tables ...
Query below finds all tables with digits in their names. Do table names in your database always make sense? Honestly. Yeah, ours neither. See what we did about that. Learn now Query selecttable_schema, table_namefrominformation_schema.tableswheretable_name ~'[0-9]'andtable_schemanotin('...
The query below lists all columns with JSON data types in PostgreSQL database. Query selectcol.table_schema, col.table_name, col.ordinal_positionascolumn_id, col.column_name, col.data_typefrominformation_schema.columnscoljoininformation_schema.tables tabontab.table_schema = col.table_schemaandt...