使用Python连接MySQL数据库并查找表信息

使用Python连接MySQL数据库并查找表信息

1.导入MySQLdb包

import MySQLdb

如果你的PyCharm中没有MySQLdb，就从Setting-》Project Interpreter查找并下载

2.在MySQL中新建一个连接，取名为python ，再新建一个测试表，取名为examples

CREATE TABLE IF NOT EXISTS examples (
  id int(11) NOT NULL AUTO_INCREMENT,
  description varchar(45),
  PRIMARY KEY (id)
);

INSERT INTO examples(description) VALUES ("Hello World");
INSERT INTO examples(description) VALUES ("MySQL Example");
INSERT INTO examples(description) VALUES ("Flask Example");

3.书写Python代码

import MySQLdb

db = MySQLdb.connect(host="localhost",  # your host 
                     user="root",       # username
                     passwd="root",     # password
                     db="python")   # name of the database

# Create a Cursor object to execute queries.
cur = db.cursor()

# Select data from table using SQL query.
cur.execute("SELECT * FROM examples")

# print the first and second columns      
for row in cur.fetchall() :
    print row[0], " ", row[1]