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When should I use cross apply over inner join?
...JOIN condition.
You could probably do something like that using CTE's and window function:
WITH t2o AS
(
SELECT t2.*, ROW_NUMBER() OVER (PARTITION BY t1_id ORDER BY rank) AS rn
FROM t2
)
SELECT t1.*, t2o.*
FROM t1
INNER JOIN
t2o
ON t2o.t1_id ...
How do I get both STDOUT and STDERR to go to the terminal and a log file?
...ure how to replicate the use of brackets (as shown in the first line) in a Windows Batch Script, though. (tee is available on the system in question.) The error I get is "The process cannot access the file because it is being used by another process."
– Agi Hammerthief
...
What REALLY happens when you don't free after malloc?
...
Probably that there were (early Windows, early Mac OS), and maybe still are, OSes which require processes to free memory before exit otherwise the space isn't reclaimed.
– Pete Kirkham
Mar 17 '09 at 15:54
...
How to generate gcc debug symbol outside the build target?
...rate debug symbol outside the result executable/library? Like .pdb file of windows VC++ compiler did.
5 Answers
...
When is it appropriate to use UDP instead of TCP? [closed]
...s something called slow start, but the throughput (actually the congestion window) is slowly increased until packets are dropped, and is then lowered and slowly increased again until packets are dropped etc. This causes the TCP throughput to fluctuate. You can see this clearly when you download a la...
Difference between DTO, VO, POJO, JavaBeans?
...ferring data -- hence the name -- but encapsulation basically goes out the window, and you typically lose any validity/consistency guarantees that a real object could provide.
– cHao
Jan 26 '17 at 22:17
...
Verify a certificate chain using openssl verify
...diate certificates and cat them together into a single file (on Unix). On Windows you can just open a text editor (like notepad.exe) and paste the certificates into the file, the first needed on top and following the others.
There is another thing. The files need to be in PEM format. Some CAs is...
The difference between fork(), vfork(), exec() and clone()
... useful in cygwin (a kernel emulating dll, that runs on top of Microsoft's Windows). cygwin can not implement an efficient fork, as the underlying OS does not have one.
– ctrl-alt-delor
May 6 '17 at 11:39
...
Difference between JVM and HotSpot?
...it (originally from Appeal Virtual Machines) acquired by Oracle for Linux, Windows and Solaris
for more implementations
link explains differences between HotSpot and JRocket
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What is __main__.py?
... linux shell prompt, $, if you don't have Bash (or another Posix shell) on Windows just create these files at demo/__<init/main>__.py with contents in between the EOFs:
$ mkdir demo
$ cat > demo/__init__.py << EOF
print('demo/__init__.py executed')
def main():
print('main execute...