2.1 创建库 xishu=#createdatabase jing_zhou; CREATEDATABASE 2.2 查看数据库 命令 xishu=# \l 输出 Listofdatabases Name|Owner|Encoding|Collate|Ctype|Access privileges ---+---+---+---+---+--- jing_zhou|liubei|UTF8|en_US.utf8|en_US.utf8| postgres|liubei|UTF8|en_US.utf8|en_US.u...
mydb=# create user B with password '126.comM';# 授权用户Amydb=# grant select,update,delete on all tables in schema public to role1;GRANT mydb=# grant role1 to A with admin option;GRANT ROLE# 使用用户A登陆并把A用户得到的权限授权给B用户# pgsql 的用户在默认配置下创建的大写的用户转换...
switchType="1" slaveThreshold="100"> <heartbeat>selectuser()</heartbeat> <writeHost host="hostM1" url="192.168.62.20:3306" user="root" password="123456"> ##IP需要修改成实际的IP地址 <readHost host="hostS1" url="192.168.62.30:3306" user="root" password="123456"/> </writeHost> </da...
if * so, and not set already as part of the result, then check if the user * is a member of the pg_write_all_data role, which allows * INSERT/UPDATE/DELETE access to all relations (except system catalogs, * which requires superuser, see above). */ if (mask & (ACL_INSERT | ...
In this phase, a thorough analysis should be conducted on technology-related issues to evaluate the compatibility of the client, application server, data access, and database features. 1b. Oracle to Postgres migration: compatibility assessment One concern that can easily be overl...
grant all privileges on database ambari to ambari;#列出所有表\dselect * from users;(ambari界面登录的用户)hosts 主机列表 备库192.168.159.12安装好数据库,不要启动rm -rf /var/lib/pgsql/data/* 主库192.168.159.11root vi postgresql.conf AI检测代码解析 [root@hdp1 data]# cat postgresql.conf # ...
To set up and use pg_probackup, write access to this directory is required. instance_name is the name of the subdirectories that will store WAL and backup files for this cluster. remote_options are optional parameters that need to be specified only if data_dir is located on a remote ...
When Postgres accesses data for a query, the tables and indexes first pass through the buffer cache, which is a fixed-size in-memory cache, configured by the setting. Query performance can often rely on whether the query’s data is already in the cache or whether it has to access the un...
ALTER DATABASE COMMIT DECLARE DROP VIEW ALTER DEFAULT PRIVILEGES COMMIT PREPARED DELETE END ALTER DOMAIN COPY DISCARD EXECUTE ALTER EVENT TRIGGER CREATE ACCESS METHOD DO EXPLAIN ALTER EXTENSION CREATE AGGREGATE DROP ACCESS METHOD FETCH ALTER FOREIGN DATA WRAPPER CREATE CAST DROP AGGREGATE GRANT ALTER FORE...
Now, provide this user with read-only access to relevant schemas and tables. Re-run this command for each schema you expect to replicate data from: GRANT USAGE ON SCHEMA <schema_name> TO <user_name>;GRANT SELECT ON ALL TABLES IN SCHEMA <schema_name> TO <user_name>;ALTER DEFAULT PRIVILE...