Morgan Wang 的博客

SELECT ENGINE FROM INFORMATION_SCHEMA.ENGINESWHERE SUPPORT IN ('YES','DEFAULT') AND TRANSACTIONS='YES'

1：ｍｙｓｑｌ　去重的正确节奏select count(DISTINCT id) from table where id in ('1','2')２：ｍｙｓｑｌ　分批统计select count(id) from table where id in ('1','2')　group_by id...

# 无限层级mysql数据表结构# 创建表-- auto-generated definitioncreate table target_resource( id int not null primary key, resource_id int null, resource_team_id int null);# 创建关系表...

脚本执行性能测试 import cProfile from cProfile import Profile def profile_wrapper(func): def wrapper(*args, **kwargs): prof = Profile() prof.enable() func(*args, **kwargs) ...

安装 mysql-Python 的时候提示错误：maydolly@localhost:~/MySQL-python-1.2.5$ sudo pip install MySQL-PythonCollecting MySQL-Python Using cached MySQL-python-1.2.5.zip Complete output from command python s...