First, open the Command Prompt on Windows or the Terminal on Unix-like systems and connect to the local PostgreSQL database server using psql client tool: psql -U postgres Second, create a new database called sales: CREATE DATABASE sales; Third, exit the psql: exit Setting up JDK Follow ...
In the previous chapter we learned how to connect to the database using the SQL Shell (psql) application, which is a command-based application that allows us to interact with the PostgreSQL database. There is another application that comes built-in with the PostgreSQL installation, the pgAdmin ...
You are now connected to database "test" as user "test". test=# create extension postgres_fdw ; CREATE EXTENSION 2.在远程数据库上生成测试数据 : [postgres@minion4 bin]$ ./psql test test psql (9.3.9) Type "help" for help. test=# CREATE TYPE user_enum AS ENUM ('foo', 'bar', '...
postgres=# create database test;CREATEDATABASEpostgres=# alter database testsettablespace mytbs;ALTERDATABASEpostgres=# \c test You are now connected to database"test"asuser"postgres".test=# create tabletb_mytps(i int,namevarchar(32))tablespace mytbs;CREATETABLE 插入实验数据 代码语言:javascript...
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) ...
archive_command = 'cp %p /path/to/archive/%f' 五、安全管理 1. 访问控制 精细化的权限管理示例: CREATE ROLE analyst; GRANT SELECT ON ALL TABLES IN SCHEMA public TO analyst; 2. 数据加密 使用pgcrypto扩展实现字段级加密: CREATE EXTENSION pgcrypto; INSERT INTO users (ssn) VALUES (pgp_sym_encrypt...
Creating a New PostgreSQL Database You can type the below-given command in thepsqlto create a user-defined database named“example”: CREATE DATABASE example; The response verifies that the database has been created successfully. Also, we can verify database creation by executing the“\l”comm...
之前的 gitlab 可以对接 mysql 也可以对接PostgreSQL,但是官网推荐使用PostgreSQL作为其后端数据库,因为使用PostgreSQL就可以使用所有的 gitlab 特性,而如果使用 mysql ,部分特性将会无法正常工作,我想应该是数据库层面的特性导致的这种差异吧,PostgreSQL有更为丰富的特性支持 ...
database要连接到的 PostgreSQL 数据库。是 username要连接的用户名。 如果使用 IntegratedSecurity,则不需要。是 password要用于连接的密码。 如果使用 IntegratedSecurity,则不需要。是 sslMode控制是否使用 SSL,具体取决于服务器支持。 - 禁用:已禁用 SSL。如果服务器需要 SSL,则连接将失败。
Report of database schema for database with db_unique_name TESTOGG List of Permanent Datafiles === File Size(MB) Tablespace RB segs Datafile Name --- --- --- --- --- 1 800 SYSTEM *** /u01/app/oracle/oradata/testogg/system01.dbf 2 590 SYSAUX *** /u01/app/oracle/ora...