postgres=# select version(); // 获取版本信息 postgres=# select usename from pg_user; // 获取系统用户信息 postgres=# drop User 用户名 // 删除用户 其它SQL命令通用如(标准化SQL语句): *创建数据库: create database [数据库名]; *删除数据库: drop database [数据库名]; *创建表: create table...
│ ├── pg_control # global controlfile, use pgcheck -pc to see it. │ ├── pg_filenode.map # system table (oid-> filenode) mappingfile, use pgcheck -pm to see it. │ └── pg_internal.init # system table cachefile, use pgcheck -prto see it. View Code 表空间目录介绍 ...
Getting the physical storage size of a database is very helpful in database planning. Use the following command to get the size of a PostgreSQL database in bytes: 1 SELECTpg_database_size(current_database()); The current_database() is a function which return the name of the database w...
conf restore_command = 'cp /usr/local/pgsql/data/pg_archive/%f %p' # 指定要恢复的时间点,也可以不指定,直接恢复所有数据 recovery_target_time = '2022-09-01 10:00:00' pg_ctl start 开启ssl 代码语言:javascript 复制 su - postgres #进入到数据目录 cd $PGDATA #创建证书 openssl req -new ...
In PostgreSQL, the database objects are created using the CREATE command. In this write-up, we will discuss how to use the Postgres “CREATE” command for Table, View, Sequence, INDEX, Function, and Tablespace Creation. Case 1: Use the CREATE Command For Table Creation ...
NpgsqlCommand command; string sql = null; int input_srid = 26986; try { using (NpgsqlConnection conn = new NpgsqlConnection(System.Configuration. ← ConfigurationManager.ConnectionStrings["DSN"].ConnectionString)) { conn.Open(); if (context.Request["srid"] != null) ...
digoal=# \c digoal postgres You are now connected to database "digoal" as user "postgres". 无法新建表了 digoal=# create table new(id int); ERROR: event:ddl_command_start, command:CREATE TABLE digoal=# \d new Did not find any relation named "new". digoal=# \dt List of relations ...
You can use different versions of the PostgreSQL database server in containers, see Running multiple PostgreSQL versions in containers. Procedure Install the PostgreSQL server packages: For PostgreSQL 13 from the RPM package: # dnf install postgr...
That's all about renaming a database in Postgres using psql and pgAdmin. Conclusion To rename a database in Postgres, use theALTER DATABASEstatement with theRENAME TOclause. To do so, specify anALTER DATABASEcommand, followed by the database’s old name, and after that, specify theRENAME...
CREATEFOREIGNTABLEpostgres_log(log_timetimestamp(3)withtime zone,user_name text,database_name text,process_id integer,connection_from text,session_id text,session_line_num bigint,command_tag text,session_start_time timestampwithtime zone,virtual_transaction_id text,transaction_id bigint,error_sever...