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Real life example, when to use OUTER / CROSS APPLY in SQL
... reference the outer table, where INNER JOIN cannot do this(throws compile error). When finding the last two dates, joining is done inside CROSS APPLY ie, WHERE M.ID=D.ID.
2. When we need INNER JOIN functionality using functions.
CROSS APPLY can be used as a replacement with INNER JOIN when we ne...
What is an undefined reference/unresolved external symbol error and how do I fix it?
What are undefined reference/unresolved external symbol errors? What are common causes and how to fix/prevent them?
34 Answ...
What does “abstract over” mean?
... The code runs on REPL fine. What version of Scala are you using, and what error did you get?
– Daniel C. Sobral
Jan 22 '11 at 22:47
1
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How to list the contents of a package using YUM?
...ticheleThomas Vander Stichele
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Force SSL/https using .htaccess and mod_rewrite
...SL-enabled virtual host or directories for defending against configuration errors that expose stuff that should be protected. When this directive is present all requests are denied which are not using SSL.
This will not do a redirect to https though. To redirect, try the following with mod_rewrite...
MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区，为创新赋能！
... Labs的Kevin Ashton为了把宝洁的供应链上的RFID标签和互联网连接起来，在1999年第一个提出了IoT这个概念。发明人TCP协议的发明人是Vinton Cerf（下图左，曾在IBM工作过两年）和Robert Elliot Kahn（下图右）。
MQTT的发明人是IBM的Andy Stanf...
How to create an infinite loop in Windows batch file?
...s)
rem ** can be stopped with exit
rem ** can be stopped with a syntax error
call :stop
)
:stop
call :__stop 2>nul
:__stop
() creates a syntax error, quits the batch
This could be useful if you need a really infinite loop, as it is much faster than a goto :loop version because a for-loo...
How do I print to the debug output window in a Win32 app?
I've got a win32 project that I've loaded into Visual Studio 2005. I'd like to be able to print things to the Visual Studio output window, but I can't for the life of me work out how. I've tried 'printf' and 'cout
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u'\ufeff' in Python string
I get an error with the following patter:
6 Answers
6
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How Big can a Python List Get?
...ist takes up 4 bytes or on a 64 bit it's 8 bytes, Python would give you an error if you attempt to make a list larger than maxsize/8 on a 64-bit system or maxsize/4 on a 32-bit system.
– thorr18
Sep 4 at 20:51
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