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Reorder / reset auto increment primary key
I have a MySQL table with an auto increment primary key. I deleted some rows in the middle of the table. Now I have, for example, something like this in the ID column: 12, 13, 14, 19, 20. I deleted the 15, 16, 17 and 18 rows.
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CreateWindow()动态创建一个EditBox - C/C++ - 清泛网 - 专注C/C++及内核技术
...中有输入后，消息框便会提示其输入的内容。
另外，如何设置输入框焦点，请参照：https://www.tsingfun.com/it/cpp/1538.htmlCreateWindow 动态创建 EditBox
c++ 代码提升权限，请求管理员身份运行权限 - 脚本技术 - 清泛IT社区，为创...
...CreateProcess函数，有时会遇到权限不足失败的情况，那么如何提升执行权限呢？
使用 ShellExecuteEx 函数：
// ------提升权限------
// Initialize the structure.
SHELLEXECUTEINFO sei = { siz...
MySQL: Selecting multiple fields into multiple variables in a stored procedure
...T multiple columns into multiple variables within the same select query in MySQL?
3 Answers
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How to find duplicates in 2 columns not 1
I have a MySQL database table with two columns that interest me. Individually they can each have duplicates, but they should never have a duplicate of BOTH of them having the same value.
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Add 2 hours to current time in MySQL?
Which is the valid syntax of this query in MySQL?
5 Answers
5
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MySQL SELECT WHERE datetime matches day (and not necessarily time)
...n the time since the inital answer in 2012, there have emerged versions of MySQL, where using '23:59:59' as a day end is no longer safe. An updated version should read
SELECT * FROM tablename
WHERE columname >='2012-12-25 00:00:00'
AND columname <'2012-12-26 00:00:00'
The gist of the answe...
How to fix “Incorrect string value” errors?
...ame` = `tables`.`table_collation`
;
Last, check your database settings:
mysql> show variables like '%colla%';
mysql> show variables like '%charac%';
If source, transport and destination are UTF-8, your problem is gone;)
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Datetime equal or greater than today in MySQL
...Date) = DATE(NOW())
Read more:
http://www.tomjepson.co.uk/tutorials/36/mysql-select-where-date-today.html
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What are the differences between the BLOB and TEXT datatypes in MySQL?
...rted and compared based on the collation of the character set.
http://dev.mysql.com/doc/refman/5.0/en/blob.html
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