Get all tables. C# publicSystem.Collections.Generic.IAsyncEnumerable<string>GetTablesAsync(System.Threading.CancellationToken cancellationToken =default); Parameters cancellationToken CancellationToken TheCancellationTokento monitor for cancellation requests. The default isNone. ...
我们可以通过使用视图检查活元组和死元组的数量来确认这一点pg_stat_all_tables: postgres=#从pg_stat_all_tables中选择n_live_tup、n_dead_tup、relname,其中relname='store';n_live_tup|n_dead_tup|relname---+---+--- 1 | 1 | store (1行) 正如预期的那样,有 1 个活动元组(更新后的行)和 1 ...
-- Now let's list all the tables, indexes, etc. that live in this namespace. blogdb=# select * from pg_class blogdb-# where relnamespace = to_regnamespace('public')::oid; oid | relname | relnamespace | reltype | reloftype | relowner | relam | relfilenode | reltablespace | ...
--no-data-for-failed-tables 缺省情况下,即使创建表失败了,如该表已经存在,数据加载的操作也不会停止,这样的结果就是很容易导致大量的重复数据被插入到该表中。如果带有该选项,那么一旦出现针对该表的任何错误,对该数据表的加载将被忽略。 --role=rolename 以指定的角色名执行restore的操作。通常而言,如果连...
'blogdb' database, otherwise you'll get the OID of the 'public' -- namespace for the database you're currently connected to. blogdb=# select to_regnamespace('public')::oid; to_regnamespace --- 2200 (1 row) -- Now let's list all the tables, indexes, etc. that live in this...
SQL>select * from user_tables; 用户 1.查看当前用户的缺省表空间 SQL>select username,default_tablespace from user_users; 2.查看当前用户的角色 SQL>select * from user_role_privs; 3.查看当前用户的系统权限和表级权限 SQL>select * from user_sys_privs; ...
beigang=# revoke all on schema csm_ca frompublic;REVOKE AI代码助手复制代码 8、先创建一个角色xxx,再创建一个超级用户csm、普通用户csm_ca,csm用户创建一个数据库testdb,在这个数据库里创建一个schema:csm_ca,然后赋予普通用户csm_ca操作数据库testdb里schema:csm_ca里的表的权限。
daclinfo = getDefaultACLs(&numDefaultACLs); opfinfo = getOpfamilies(&numOpfamilies); convinfo = getConversions(&numConversions); tblinfo = getTables(&numTables); tblinfoindex = buildIndexArray(tblinfo, numTables, sizeof(TableInfo));
(table); orderedTables.add(table); } } private static Map<String, Integer> getColumnDataTypes(Connection connection, String tableName) throws SQLException { Map<String, Integer> columnDataTypes = new HashMap<>(); // 获取数据库元数据 DatabaseMetaData metaData = connection.getMetaData(); // ...
Citus is an open source extension to Postgres (open source repo on GitHub) that gives you the superpower of distributed tables. Who uses Citus? People with data-intensive applications that need more compute, memory, or scale than they can get from a single Postgres node. ...