大约有 7,000 项符合查询结果（耗时：0.0146秒） [XML]
MySQL ON DUPLICATE KEY - last insert id?
...heck this page out: https://web.archive.org/web/20150329004325/https://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html
At the bottom of the page they explain how you can make LAST_INSERT_ID meaningful for updates by passing an expression to that MySQL function.
From the MySQL documentation...
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.
...
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:
...
MySQL 'create schema' and 'create database' - Is there any difference
... between the create schema command and the create database command for MySQL.
6 Answers
...
MySQL: Insert record if not exists in table
...
if you need to get warning message you can afterwards do mysql> show warnings\G
– fiorentinoing
Oct 20 '16 at 18:59
2
...
add column to mysql table if it does not exist
...
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
...
How to 'insert if not exists' in MySQL?
...
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
...
Best way to test if a row exists in a MySQL table
I'm trying to find out if a row exists in a table. Using MySQL, is it better to do a query like this:
12 Answers
...
Saving timestamp in mysql table using php
I have a field in a MySQL table which has a timestamp data type. I am saving data into that table. But when I pass the timestamp ( 1299762201428 ) to the record, it automatically saves the value 0000-00-00 00:00:00 into that table.
...