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Change auto increment starting number?
In MySQL, I have a table, and I want to set the auto_increment value to 5 instead of 1 . Is this possible and what query statement does this?
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
... 发送和接收文本 (URSAI2UDPTest)
此示例展示了如何发送和接收文本。
示例中的块并不难理解。大多数块涉及输入项的验证。
发送和接收字节数组 (UDPBinaryTest)
此示例展示了如何发送和接收字节...
How to get the sizes of the tables of a MySQL database?
I can run this query to get the sizes of all tables in a MySQL database:
16 Answers
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Equals(=) vs. LIKE
... operators produce obviously different results. Allow me to quote from the MySQL manual:
Per the SQL standard, LIKE performs matching on a per-character basis, thus it can produce results different from the = comparison operator:
mysql> SELECT 'ä' LIKE 'ae' COLLATE latin1_german2_ci;
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Activity启动器（ActivityStarter）如何查看并启动其他App · App Inventor 2 中文网
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Activity启动器（ActivityStarter）如何查看并启动其他App
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由 App Inventor 2 创建的应用要弄...
如何实现设置用户头像功能呢？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
在inventor中如何实现调用相册功能选择图片设置成用户头像功能呢，就是类似于微信中点击头像会弹出从相册中选择或者拍照来设置头像的功能
多媒体下面的组件可以实现，具体用法参考中文文档：https://www.fun123.cn/reference/comp...
Multiple Updates in MySQL
...e, is there a way to update multiple rows at once (as in, in one query) in MySQL?
17 Answers
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How can I make SQL case sensitive string comparison on MySQL?
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http://dev.mysql.com/doc/refman/5.0/en/case-sensitivity.html
The default character set and collation are latin1 and latin1_swedish_ci, so nonbinary string comparisons are case insensitive by default. This means that if you search wi...
Python 3 ImportError: No module named 'ConfigParser'
I am trying to pip install the MySQL-python package, but I get an ImportError .
18 Answers
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In MySQL, can I copy one row to insert into the same table?
...o you don't have to worry about the primary key. Setting it to null allows MySQL to choose the value itself, so there's no risk of creating a duplicate.
If you want to be super-sure you're only getting one row to insert, you could add LIMIT 1 to the end of the INSERT INTO line.
Note that I also ap...