Centos 7最小化安装部署PostgreSQL

安装

sh-4.2# yum install https://download.postgresql.org/pub/repos/yum/11/redhat/rhel-7-x86_64/pgdg-centos11-11-2.noarch.rpm
sh-4.2# yum install postgresql11
sh-4.2# yum install postgresql11-server

初始化

sh-4.2# /usr/pgsql-/bin/postgresql--setup initdb

启动

sh-4.2# systemctl enable postgresql-
sh-4.2# systemctl start postgresql-
sh-4.2# su - postgres
sh-4.2# psql -U postgres

常用命令

# 创建新表
postgres=# CREATE TABLE user_tbl(name VARCHAR(), signup_date DATE);
# 插入数据
postgres=# INSERT INTO user_tbl(name, signup_date) VALUES('张三', '2013-12-22');
# 选择记录
postgres=# SELECT * FROM user_tbl;
# 更新数据
postgres=# UPDATE user_tbl set name = '李四' WHERE name = '张三';
# 删除记录
postgres=# DELETE FROM user_tbl WHERE name = '李四' ;
# 添加栏位
postgres=# ALTER TABLE user_tbl ADD email VARCHAR();
# 更新结构
postgres=# ALTER TABLE user_tbl ALTER COLUMN signup_date SET NOT NULL;
# 更名栏位
postgres=# ALTER TABLE user_tbl RENAME COLUMN signup_date TO signup;
# 删除栏位
postgres=# ALTER TABLE user_tbl DROP COLUMN email;
# 表格更名
postgres=# ALTER TABLE user_tbl RENAME TO backup_tbl;
# 删除表格
postgres=# DROP TABLE IF EXISTS backup_tbl;

参考地址

https://www.postgresql.org/download/linux/redhat/
https://www.jianshu.com/p/8515a02492f1