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Difference between a Seq and a List in Scala
...from 0 up to the length of the sequence. Seq has many subclasses including Queue, Range, List, Stack, and LinkedList.
A List is a Seq that is implemented as an immutable linked list. It's best used in cases with last-in first-out (LIFO) access patterns.
Here is the complete collection class hierar...
Does List guarantee insertion order?
...e abstract data type List in any good computer science textbook. Just like Queue and Stack, a List is a well defined, predictable and well understood data structure - if the .NET implementation differed (or if it changes) a lot of software would break.
– Bevan
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How can I use redis with Django?
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You can also use Redis as a queue for distributed tasks in your Django app. You can use it as a message broker for Celery or Python RQ.
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Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?
...uestion, I recently created some new ones involving much fewer HTTP calls (5000 compared to 1 million previously) but on requests that took much longer to execute (500 milliseconds compared to around 1 millisecond previously). Both tester applications, the synchronously multithreaded one (based on H...
Using awk to remove the Byte-order mark
...that was with BOM. Found an application called Replace Pioneer and in it:
Batch Runner -> Search (to find all the files in the subfolders) -> Replace Template -> Binary remove BOM (there is a ready made search and replace template for this).
It was not the most elegant solution and it d...
Set a persistent environment variable from cmd.exe
... to do this. I know of no way to broadcast a windows message from Windows batch so you'll need to write a small program to do this.
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Multiple queries executed in java in single statement
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You can use Batch update but queries must be action(i.e. insert,update and delete) queries
Statement s = c.createStatement();
String s1 = "update emp set name='abc' where salary=984";
String s2 = "insert into emp values ('Osama',1420)"...
How can I install pip on Windows?
... is not recognized as an internal or external command, operable program or batch file." Am I doing something wrong? I have Python 2.7.8 installed. Do I need to change the directory? Thanks.
– Andrew
Jul 14 '15 at 16:39
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Is it possible to for SQL Output clause to return a column not being inserted?
...value (the PK) from the source Table (btw, so I could then (in a different Batch) use that output Table to populate a Column in the source Table with the Identity value). Without a Merge, I imagine I'd have to: a) start Transaction, b) get next Identity, c) Insert into temp Table with computed Ident...
How can you diff two pipelines in Bash?
... Much more detailed than my redaction on the same solution -- anonymous batch --. +1
– VonC
Dec 6 '08 at 10:38
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