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How to sort an array in descending order in Ruby
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It's always enlightening to do a benchmark on the various suggested answers. Here's what I found out:
#!/usr/bin/ruby
require 'benchmark'
ary = []
1000.times {
ary << {:bar => rand(1000)}
}
n = 500
Benchmark...
Good ways to manage a changelog using git?
I've been using Git for a while now, and I recently started using it to tag my releases so that I could more easily keep track of changes and be able to see which version each of our clients are running (unfortunately the code currently mandates that each client have their own copy of the PHP site; ...
ElasticSearch - Return Unique Values
...alse,
"_shards" : {
"total" : 2,
"successful" : 2,
"failed" : 0
},
"hits" : {
"total" : 1000000,
"max_score" : 0.0,
"hits" : [ ]
},
"aggregations" : {
"langs" : {
"buckets" : [ {
"key" : "10",
"doc_count" : 244812
}, {
"key" : "11",
"doc_count" : 136794
}...
How should I use try-with-resources with JDBC?
I have a method for getting users from a database with JDBC:
5 Answers
5
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Python list iterator behavior and next(iterator)
...t you see is the interpreter echoing back the return value of next() in addition to i being printed each iteration:
>>> a = iter(list(range(10)))
>>> for i in a:
... print(i)
... next(a)
...
0
1
2
3
4
5
6
7
8
9
So 0 is the output of print(i), 1 the return value from next(...
How to exit pdb and allow program to continue?
...sing the pdb module to debug a program. I'd like to understand how I can exit pdb and allow the program to continue onward to completion. The program is computationally expensive to run, so I don't want to exit without the script attempting to complete. continue doesn't seems to work. How can I ex...
SQL query to get all values a enum can have
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SELECT enum_range(NULL::myenum)
If you want a separate record for each item in the enum:
SELECT unnest(enum_range(NULL::myenum))
Additional Information
This solution works as expected even if your enum is not in the default schema. For example, replace myenum with myschema.myenum.
The d...
How to stage only part of a new file with git?
I love git add --interactive . It is now part of my daily workflow.
5 Answers
5
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How can I copy the content of a branch to a new local branch?
...mote. I want to revert the changes on that branch and do something else on it, but I don't want to lose the work completely. I was thinking of something like create a new branch locally and copy the old branch there, then I can revert the changes and continue working on the old branch. Is there a be...
How can I insert values into a table, using a subquery with more than one result?
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INSERT INTO iden_course (Cse_M_ID,Cse_M_Name,Cse_M_ShName, Cse_M_TotSem,Cse_M_CreatedDate) VALUES ('ID','BJf', 'BJfg' , '4',Now()) select max(Cse_M_ID) as ID from iden_course how to add in this query
– SANDEEP
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