SELECT datname FROM pg_database; 切换数据库 \c 数据库名 1、通过命令行查询 \d 数据库 —— 得到所有表的名字 \d 表名 —— 得到表结构 2、通过SQL语句查询 "select * from pg_tables" —— 得到当前db中所有表的信息(这里pg_tables是系统视图) "select tablename from pg_tables where schemaname=...
mysql>drop database dbname; 数据库操作 显示所有的数据库 mysql> show databases;(注意:最后有个 s) 创建数据库 mysql> create database test; 连接数据库 mysql> use test; 查看当前使用的数据库 mysql> select database(); 当前数据库包含的表信息 mysql> show tables; (注意:最后有个 s) 删除数据库 ...
ALTER ROLEhq=# CREATE DATABASE test1_user OWNER test1_user;#创建数据库 CREATE DATABASE create schema test1_user; #创建模式 hq=# GRANT ALL PRIVILEGES ON DATABASE test1_user to test1_user; #赋予权限 GRANT CREATE TABLE test1_user111 ( name text, population real, altitude int -- (in ft) ...
-h, --host=HOSTNAME database server host or socket directory (default:"/var/run/vpostgres") -p, --port=PORT database server port (default:"5432") -U, --username=USERNAME database user name (default:"root") -w, --no-password never promptforpassword -W, --password force password p...
help Show context-sensitive help (also try --help-long and --help-man). [no-]collector.database Enable the database collector (default: enabled). [no-]collector.database_wraparound Enable the database_wraparound collector (default: disabled). [no-]collector.locks Enable the locks collector...
direct physical connection and PGDATA access aren't possible. In these cases, DBLab should run on a separate VM within the same region. It will routinely auto-refresh its data, effectively acting as a database-as-a-service solution. This setup then offers thin database branching ideal for ...
1.connect database with ip port username password 2.show all database 3.chose database show all tables in this database 4.you can rename table drop table with a button 5.show the sql to run alert table 6.show data of table 7.show table sctruct ,show all column name and data type...
And yet—imagine this: one fine day, you see that your database size is larger than you expect, the I/O load on your database has increased, and things have slowed down without much change in workload. You begin looking into what might have happened. You run the exc...
table_size - Checks the size of tables only. timesync - Compare database time to local system time. txn_idle - Checks the maximum 'idle in transaction' time. txn_time - Checks the maximum open transaction time. txn_wraparound - See how close databases are getting to transaction ID wrap...
use <some-database> show tables; desc <some-table>; 嘿!Postgresql docker run -itd --name some-postgresql\ --restart unless-stopped \ -e POSTGRES_PASSWORD=123456 \ -e PGDATA=/var/lib/postgresql/data/some-postgresql \ -v postgres_data:/var/lib/postgresql/data \ ...