大约有 19,000 项符合查询结果（耗时：0.0350秒） [XML]
Null vs. False vs. 0 in PHP
...or a data value that doesn't exist in the database or is unknown. See dev.mysql.com/doc/refman/5.0/en/working-with-null.html or en.wikipedia.org/wiki/Null_%28SQL%29.
– Eli
Dec 5 '12 at 3:39
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MySQL/Amazon RDS error: “you do not have SUPER privileges…”
I'm attempting to copy my mysql database from an Amazon EC2 to an RDS:
7 Answers
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windows异常处理 __try __except - C/C++ - 清泛网 - 专注C/C++及内核技术
...进入到__except模块中运行异常处理代码
try-except的关键是如何在__except模块中获得异常错误的相关信息.
Windows提供了两个API函数来获取异常信息：
LPEXCEPTION_POINTERS GetExceptionInformation(VOID); //取得异常相关信息
DWORD GetExceptionCode(VOID...
MySQL Workbench: How to keep the connection alive
Error Code: 2013. Lost connection to MySQL server during query
9 Answers
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MySQL Query GROUP BY day / month / year
...ecord_date), MONTH(record_date)
Check out the date and time functions in MySQL.
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Get the new record primary key ID from MySQL insert query?
Let's say I am doing a MySQL INSERT into one of my tables and the table has the column item_id which is set to autoincrement and primary key .
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Mysql substr和Oracle substr区别 - MySql - 清泛IT论坛，有思想、有深度
Oracle substr(字符串，开始索引、从0起，长度)
Mysql substr或substring(字符串，开始索引、从1起，长度)
Difference between two dates in MySQL
... value can range from "-838:59:59" to "838:59:59". w3schools.com/SQl/func_mysql_timediff.asp
– cREcker
Aug 3 '17 at 12:21
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Django Setup Default Logging
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Thanks it seems that this '' means root logger. This useful piece of information was not found in Django documentation.
– Eino Mäkitalo
Mar 12 '13 at 10:11
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Get table column names in MySQL?
Is there a way to grab the columns name of a table in mysql?
using php
19 Answers
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