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typedef fixed length array
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Difference between partition key, composite key and clustering key in Cassandra?
...te to each others. We use CQL (Cassandra Query Language) for Cassandra database access.
Note:- Answer is as per updated version of Cassandra.
Primary Key :-
In cassandra there are 2 different way to use primary Key .
CREATE TABLE Cass (
id int PRIMARY KEY,
name text
);
Create Tabl...
NHibernate ISession Flush: Where and when to use it, and why?
... ISession.Flush() to ensure that all changes are synchronized with the database.
Committing the database transaction
If you are using the NHibernate ITransaction API, this looks like:
tx.Commit(); // flush the session and commit the transaction
If you are managing ADO.NET transactions yourself you ...
Detect & Record Audio in Python
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Thanks to cryo for improved version that I based my tested code below:
#Instead of adding silence at start and end of recording (values=0) I add the original audio . This makes audio sound more natural as volume is >0. See trim()
#I also fixed issue with the previ...
Are soft deletes a good idea? [duplicate]
... a bad idea, generally (with some exceptions, perhaps).
First, your database should be backed up regularly, so you should never be in a situation where you would lose data permanently because of a DELETE (unless it's a deletion of just-added data, of course).
Second, a soft delete like this mean...
Why does modern Perl avoid UTF-8 by default?
...qw< :full >;
use feature qw< unicode_strings >;
use File::Basename qw< basename >;
use Carp qw< carp croak confess cluck >;
use Encode qw< encode decode >;
use Unicode::Normalize qw< NFD NFC >;
END { close STDOUT }
if (grep...
R script line numbers at error?
... there are specific areas you're concerned about (e.g. connecting to a database), then wrap them in a tryCatch() function.
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Why do some functions have underscores “__” before and after the function name?
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Does order of where clauses matter in SQL?
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The order of WHERE clauses should not make a difference in a database that conforms to the SQL standard. The order of evaluation is not guaranteed in most databases.
Do not think that SQL cares about the order. The following generates an error in SQL Server:
select *
from INFORMATION_S...
Significance of a .inl file in C++
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