importmysql.connector# 连接数据库cnx=mysql.connector.connect(host="localhost",user="your_username",password="your_password",database="your_database")# 创建游标cursor=cnx.cursor()# 执行查询query="SELECT event_name, event_
mysql> create table test(id int,hiredate timestamp); Query OK, 0 rows affected (0.01 sec) mysql> insert into test values(1,'20151208000000'); Query OK, 1 row affected (0.00 sec) mysql> create table test1(id int,hiredate datetime); Query OK, 0 rows affected (0.01 sec) mysql> insert...
# 导入PyMySQL模块importpymysql# 创建数据库连接conn=pymysql.connect(host='localhost',# 主机名port=3306,# 端口号user='root',# 用户名password='password',# 密码db='database_name'# 数据库名)# 创建游标对象cursor=conn.cursor()# 构建查询语句query="SELECT * FROM table_name WHERE timestamp_column...
I am trying to subtract two unix timestamps in a mysql query namely:- SELECT FROM_UNIXTIME((SUBSTR(1304931465374,1,10) - SUBSTR(1304931480124, 1,10)) I was hoping for the result to be in the datetime format YYYY-MM-DD HH:MM:SS ...
mysql>insertintot2values(null,null,null); Query OK,1row affected (0.01sec) mysql>select*fromt2;+---+---+---+|ts1|ts2|ts3|+---+---+---+|NULL|NULL|NULL|+---+---+---+1rowinset(0.00sec) 这一次,建表语句中那些奇怪的默认值都没有...
mysql>ALTERTABLEtest_t1ADDtsp2TIMESTAMP;QueryOK,0rowsaffected(0.05sec)Records:0Duplicates:0Warnings:0mysql>DESCtest_t1;+---+---+---+---+---+---+|Field|Type|Null|Key|Default|Extra|+---+---+---+---+---+---+|tsp|timestamp|NO||CURRENT_TIMESTAMP|on updateCURRENT_TIMESTAMP||...
Query OK, 1 row affected (0.02 sec) mysql> INSERT INTO t1(id) VALUES(2); Query OK, 1 row affected (0.02 sec) mysql> SELECT * FROM t1; +---+---+ |id| b | +---+---+ | 1 | 2013-05-20 06:44:07 | | 2 | 2013-05-20 06:44...
mysql> set time_zone='+00:00'; Query OK, 0 rows affected (0.00 sec) mysql> show variables like '%time_zone%'; +---+---+ | Variable_name | Value | +---+---+ | system_time_zone | CST | | time_zone | +00:00 | +---+---+ 2 rows in set (0.00 sec) mysql> select...
Query OK, 0 rows affected (0.01 sec) mysql> DESC test_t1; +---+---+---+---+---+---+ | Field | Type | Null | Key | Default | Extra | +---+---+---+---+---+---+ | tsp | timestamp | NO | | CURRENT_TIMESTAMP ...
前言 目录 1: TIMESTAMP受影响因素之一——MySQL时区简介 2:TIMESTAMP受影响因素之二——SQL_MODE简介 3:TIMESTAMP类型和DATETIME类型的比较 4:TIMESTAMP类型的默认行为 5:TIMESTAMP类型常见的线上问题 6:线…