"cond","and" and "or" in Scheme - Stack Overflow
Oct 14, 2013 · You cannot define cond or and or or or if as functions because functions evaluate all their arguments. (You could define some of them as macros). Read also the famous SICP and Lisp In …
Use of $COND and $EQ with a array of objects - Stack Overflow
Mar 1, 2014 · Use of $COND and $EQ with a array of objects Asked 11 years, 10 months ago Modified 3 years, 1 month ago Viewed 18k times
Conditional grouping with $exists inside $cond - Stack Overflow
1 I found your questions while looking for a similar problem, but insted of a key, I was looking for my parameters. I finally solved the issue. This is what I used for my parameter, to check that if it exists …
MongoDB conditional if else if with exists - Stack Overflow
Feb 21, 2022 · if user id exists then user id else if user name exists then user name else if user email exists then user email else '' Here, is my code.
How to group query with multiple $cond? - Stack Overflow
Jun 2, 2017 · 35 I want to query like below, but this contains only one $cond. How to query with two $cond?
MongoDB using $cond with Update ($inc) - Stack Overflow
Apr 21, 2020 · MongoDB using $cond with Update ($inc) Asked 5 years, 8 months ago Modified 3 years, 11 months ago Viewed 6k times
How to use $in or $nin in mongo aggregation $group $cond
Nov 16, 2015 · How to use $in or $nin in mongo aggregation $group $cond Asked 10 years, 2 months ago Modified 10 years, 1 month ago Viewed 21k times
Why does pthread_cond_wait have spurious wakeups?
Sep 6, 2023 · Spurious wakeups from the pthread_cond_timedwait () or pthread_cond_wait () functions may occur. Since the return from pthread_cond_timedwait () or pthread_cond_wait () does not imply …
MongoDB - Is it possible to use $or with $cond?
To answer your original question, yes you can use $or within a $cond. However, in your case this would be semantically incorrect as you are looking for a range between dates.
understanding of pthread_cond_wait() and pthread_cond_signal()
Jan 3, 2024 · But there is a saying "The pthread_cond_signal () function shall unblock at least one of the threads that are blocked on the specified condition variable cond (if any threads are blocked on …