import pymysql import re conn = pymysql.connect( host=’localhost’, port=3306, user=’root’, passwd=’123456′, db=’test’, charset=’utf8′, ) cursor = conn.cursor() f = open(‘D:\fil
Tag: Specify
解决MySQL Update：You can’t specify target table for update in FROM clause
You can’t specify target in MySQL The error of table for update in FROM clause means that you cannot select some values in the same table first, and then update this table (in the same statement)
Specify which row is returned on SQLite Group
I encountered a tricky problem. I store all versions of all documents in a table. Each document has a unique id, and the version is stored as an integer. It will increment when there is a new versi
PostgreSQL – How to specify different column types according to the database type of Haskell GROUNDHOG?
Using the Groundhog library in Haskell, I want to implement a column type that uses “uuid” when the backend is Postgresql, otherwise just use “varchar” for any other backends. Although this should