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Capturing Ctrl-c in ruby
...ra server with a constantly running background thread, and this looks like what I need to kill the thread as well on a cntrl-c, without otherwise changing behavior.
– Narfanator
Aug 4 '19 at 6:33
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How SID is different from Service name in Oracle tnsnames.ora
...//www.sap-img.com/oracle-database/finding-oracle-sid-of-a-database.htm
What is the difference between Oracle
SIDs and Oracle SERVICE NAMES. One
config tool looks for SERVICE NAME and
then the next looks for SIDs! What's
going on?!
Oracle SID is the unique name that
uniquely identi...
How to convert String object to Boolean Object?
...
Try (depending on what result type you want):
Boolean boolean1 = Boolean.valueOf("true");
boolean boolean2 = Boolean.parseBoolean("true");
Advantage:
Boolean: this does not create new instances of Boolean, so performance is better (and l...
MySQL SELECT WHERE datetime matches day (and not necessarily time)
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I actually wonder what is faster - this or the BETWEEN solution ... anybody bechmarked?
– jave.web
Feb 17 '15 at 0:11
6
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Why can't non-default arguments follow default arguments?
...were at the start, it would be confusing:
fun1("who is who", 3, "jack")
What would that do in your first example? In the last, x is "who is who", y is 3 and a = "jack".
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A good book for learning D3.js [closed]
...i-book - found here:
http://www.dashingd3js.com/table-of-contents
Part of what is good about these two resources is that they should encourage you to immediately begin playing around with d3 in your browser; so you are actually using d3 and exploring how it works in simple cases, instead of only re...
CSS Child vs Descendant selectors
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Just think of what the words "child" and "descendant" mean in English:
My daughter is both my child and my descendant
My granddaughter is not my child, but she is my descendant.
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When to add what indexes in a table in Rails
...o two foreign keys at once (add_index (:users, [:category_id, :state_id]), what happens? How is this different from adding the index for each key?
Then the index is a combined index of the two columns. That doesn't make any sense, unless you want all entries for one category_id AND one state_id (...
python pip: force install ignoring dependencies
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this is not exactly what the op asked for. according to the man page -I, --ignore-installed Ignore the installed packages (reinstalling instead). this flag will explicilty reinstall the specified packages, even if they are inst...
How do I check if a string is valid JSON in Python?
... how that will work. Leads me to my next question. It throws a ValueError. What I want it to do at this point is return the offending string so I can do something else with it. So far, I've only gotten the error message and type.
– Joey Blake
Apr 1 '11 at 12:36...