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No module named MySQLdb
I am using Python version 2.5.4 and install MySQL version 5.0 and Django. Django is working fine with Python, but not MySQL. I am using it in Windows Vista.
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MySQL error code: 1175 during UPDATE in MySQL Workbench
I'm trying to update the column visited to give it the value 1. I use MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
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MySQL 'create schema' and 'create database' - Is there any difference
... between the create schema command and the create database command for MySQL.
6 Answers
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MySQL: Insert record if not exists in table
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if you need to get warning message you can afterwards do mysql> show warnings\G
– fiorentinoing
Oct 20 '16 at 18:59
2
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add column to mysql table if it does not exist
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Note that INFORMATION_SCHEMA isn't supported in MySQL prior to 5.0. Nor are stored procedures supported prior to 5.0, so if you need to support MySQL 4.1, this solution isn't good.
One solution used by frameworks that use database migrations is to record in your database...
How do I add more members to my ENUM-type column in MySQL?
The MySQL reference manual does not provide a clearcut example on how to do this.
7 Answers
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How to 'insert if not exists' in MySQL?
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use INSERT IGNORE INTO table
see http://bogdan.org.ua/2007/10/18/mysql-insert-if-not-exists-syntax.html
there's also INSERT … ON DUPLICATE KEY UPDATE syntax, you can find explanations on dev.mysql.com
Post from bogdan.org.ua according to Google's webcache:
18th October 2007
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智能手机图形解锁有多少种可能 - 创意 - 清泛网 - 专注C/C++及内核技术
...这个人的个人网站也不错，http://www.matrix67.com/
Android 的密码是 3 × 3 点阵中的一条路径，这条路径可以交叉，可以“走日字”，几乎是无所不能（只要不经过重复点），但却有一个例外：路径不允许跳过途中必须要经过的点...
Linux编程中各种头文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...h>
#include <fcntl.h>
#include <fcntl.h>
涉及到用户权限及密码验证问题时加入如下语句：
#include <shadow.h>
#include <crypt.h>
#include <pwd.h>
需要注意的是，应该在编译时链接加密算法库，即增加编译选项：
-lcrypt
涉及到文件...
git使用代理服务器，提升git速度 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...要鉴权的代理设置，如果需要鉴权，可能需要添加用户名密码信息：
git config http.proxy http://username:password@127.0.0.1:8088
如果git的所有项目都需要启用代理，那么可以直接启用全局设置：
git config --global http.proxy http://127.0.0.1:8088...