- 連接到數據庫:
psql -U username -d dbname
- 查看數據庫列表:
\l
- 查看表格列表:
\dt
- 查看表格結構:
\d table_name
- 創建數據庫:
CREATE DATABASE dbname;
- 刪除數據庫:
DROP DATABASE dbname;
- 創建表格:
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
...
);
- 刪除表格:
DROP TABLE table_name;
- 插入數據:
INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...);
- 查詢數據:
SELECT * FROM table_name;
- 更新數據:
UPDATE table_name SET column1 = value1, column2 = value2 WHERE condition;
- 刪除數據:
DELETE FROM table_name WHERE condition;
- 導出數據:
COPY table_name TO 'file_path' DELIMITER ',' CSV HEADER;
- 導入數據:
COPY table_name FROM 'file_path' DELIMITER ',' CSV HEADER;
- 備份數據庫:
pg_dump dbname > backup.sql
- 恢復數據庫:
psql -d dbname -f backup.sql
- 停止數據庫:
pg_ctl stop -D /path/to/data/directory
- 啟動數據庫:
pg_ctl start -D /path/to/data/directory
