pip install pymysql

import pymysql

db = pymysql.connect("127.0.0.1", "root", "123456", "mysql")  # ("數(shù)據(jù)庫(kù)ip","用戶","密碼","數(shù)據(jù)庫(kù)" ) 打開(kāi)數(shù)據(jù)庫(kù)連接
cursor = db.cursor()
cursor.execute("SELECT VERSION()")  # 使用 execute() 方法執(zhí)行 SQL 查詢
data = cursor.fetchone()  # 使用 fetchone() 方法獲取單條數(shù)據(jù)
print("Database version : %s " % data)
db.close()
# Database version : 8.0.18

import pymysql

conn = pymysql.connect(
        host='localhost', user='root', password="root",
        database='db', port=3306, charset='utf-8',
)

cur = conn.cursor(cursor=pymysql.cursors.DictCursor)

import pymysql

# 打開(kāi)數(shù)據(jù)庫(kù)連接
db = pymysql.connect("127.0.0.1", "root", "123456", "mysql")  # 打開(kāi)數(shù)據(jù)庫(kù)連接

# 使用 cursor() 方法創(chuàng)建一個(gè)游標(biāo)對(duì)象 cursor
cursor = db.cursor()

# 使用 execute() 方法執(zhí)行 SQL，如果表存在則刪除
cursor.execute("DROP TABLE IF EXISTS EMPLOYEE")

# 使用預(yù)處理語(yǔ)句創(chuàng)建表
sql = """CREATE TABLE EMPLOYEE (
         FIRST_NAME  CHAR(20) NOT NULL,
         LAST_NAME  CHAR(20),
         AGE INT,  
         SEX CHAR(1),
         INCOME FLOAT )"""

cursor.execute(sql)

cursor.execute("desc EMPLOYEE")
data = cursor.fetchmany(5)
for row in data:
    print("%s,%s" % (row[0], row[1]))

# 關(guān)閉數(shù)據(jù)庫(kù)連接
db.close()

# FIRST_NAME,char(20)
# LAST_NAME,char(20)
# AGE,int(11)
# SEX,char(1)
# INCOME,float

import pymysql

# 打開(kāi)數(shù)據(jù)庫(kù)連接
db = pymysql.connect("127.0.0.1", "root", "123456", "mysql")  # 打開(kāi)數(shù)據(jù)庫(kù)連接

# 使用cursor()方法獲取操作游標(biāo)
cursor = db.cursor()

# SQL 插入語(yǔ)句
sql = """INSERT INTO EMPLOYEE(FIRST_NAME,
         LAST_NAME, AGE, SEX, INCOME)
         VALUES ('Mac', 'Mohan', 20, 'M', 2000)"""
try:
    cursor.execute(sql)  # 執(zhí)行sql語(yǔ)句
    db.commit()  # 提交到數(shù)據(jù)庫(kù)執(zhí)行
except:
    db.rollback()  # 如果發(fā)生錯(cuò)誤則回滾

# 關(guān)閉數(shù)據(jù)庫(kù)連接
db.close()

import pymysql

# 打開(kāi)數(shù)據(jù)庫(kù)連接
db = pymysql.connect("127.0.0.1", "root", "123456", "mysql")  # 打開(kāi)數(shù)據(jù)庫(kù)連接

# 使用cursor()方法獲取操作游標(biāo)
cursor = db.cursor()

# SQL 查詢語(yǔ)句
sql = "SELECT * FROM EMPLOYEE \
       WHERE INCOME > %s" % (1000)
try:

    cursor.execute(sql)  # 執(zhí)行SQL語(yǔ)句
    results = cursor.fetchall()  # 獲取所有記錄列表
    for row in results:
        fname = row[0]
        lname = row[1]
        age = row[2]
        sex = row[3]
        income = row[4]
        # 打印結(jié)果
        print ("fname=%s,lname=%s,age=%s,sex=%s,income=%s" % \
               (fname, lname, age, sex, income ))
except:
    print("Error: unable to fetch data")

# 關(guān)閉數(shù)據(jù)庫(kù)連接
db.close()

import pymys
# 打開(kāi)數(shù)據(jù)庫(kù)連接
db = pymysql.connect("127.0.0.1", "root", "123456", "mysql")  # 打開(kāi)數(shù)據(jù)庫(kù)連接

# 使用cursor()方法獲取操作游標(biāo)
cursor = db.cursor()

# SQL 更新語(yǔ)句
sql = "UPDATE EMPLOYEE SET AGE = AGE + 1 WHERE SEX = '%c'" % ('M')
try:
    cursor.execute(sql)  # 執(zhí)行SQL語(yǔ)句
    db.commit()  # 提交到數(shù)據(jù)庫(kù)執(zhí)行
except:
    db.rollback()  # 發(fā)生錯(cuò)誤時(shí)回滾

# 關(guān)閉數(shù)據(jù)庫(kù)連接
db.close()

import pymysql

# 打開(kāi)數(shù)據(jù)庫(kù)連接
db = pymysql.connect("localhost", "testuser", "test123", "TESTDB")

# 使用cursor()方法獲取操作游標(biāo)
cursor = db.cursor()

# SQL 刪除語(yǔ)句
sql = "DELETE FROM EMPLOYEE WHERE AGE > %s" % (20)
try:
    cursor.execute(sql)  # 執(zhí)行SQL語(yǔ)句
    db.commit()  # 提交修改
except:
    db.rollback()  # 發(fā)生錯(cuò)誤時(shí)回滾# 關(guān)閉連接
db.close()

import pymssql

conn = pymssql.connect(host='10.0.0.21', user='zhusu', password='prd4ZS@', database='12')
cur = conn.cursor()
cur.execute('select top 5 * from [dbo].[MouldChange]')
# 如果update/delete/insert記得要conn.commit()
# 否則數(shù)據(jù)庫(kù)事務(wù)無(wú)法提交
print(cur.fetchall())
cur.close()
conn.close()