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Does Redis persist data?
... unmatched performance and no real loss in case of a crash. But processing orders/purchase histories and so on is considered a job for traditional databases.
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Best way to extract a subvector from a vector?
...irely clear; and it gets worse if the length and start_pos are of the same order of magnitude.)
Anyway, remember that this is not a copy, it's just a view of the data in the vector, so be careful. If you want an actual copy, you could do:
std::vector<T> new_vec(my_subspan.cbegin(), my_subspan....
Proper way to make HTML nested list?
... allows both dt and dd elements.
More Notes:
dl = definition list.
ol = ordered list (numbers).
ul = unordered list (bullets).
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How to perform a mysqldump without a password prompt?
...to @Frankline's answer:
The -p option must be excluded from the command in order to use the password in the config file.
Correct:
mysqldump –u my_username my_db > my_db.sql
Wrong:
mysqldump –u my_username -p my_db > my_db.sql
.my.cnf can omit the username.
[mysqldump]
password=my_passw...
Storing money in a decimal column - what precision and scale?
...However, rather than a one-size-fits-all approach, some research may be in order. Ask your designer or domain expert about accounting rules which may be applicable: GAAP, EU, etc. I vaguely recall some EU intra-state transfers with explicit rules for rounding to five decimal places, therefore using ...
Drag and drop files into WPF
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I used a Grid as root element, with a Border inside with the Background property set to something (white is fine, but not transparent). Inside the Border I put the actual content.
– mcont
Jan 27 '15 at 19:39
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select count(*) from table of mysql in php
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You need to alias the aggregate using the as keyword in order to call it from mysql_fetch_assoc
$result=mysql_query("SELECT count(*) as total from Students");
$data=mysql_fetch_assoc($result);
echo $data['total'];
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How to present a simple alert message in java?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How do I count unique values inside a list
... Counter(words).values() is nice. We are assuming the the count is in the order of first appearance of the list of words? I mean, I'm assuming the count will give us the count of a, then b, then c, then d...
– Monica Heddneck
Aug 19 '17 at 1:12
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How to run the sftp command with a password from Bash script?
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I was recently asked to switch over from ftp to sftp, in order to secure the file transmission between servers. We are using Tectia SSH package, which has an option --password to pass the password on the command line.
example : sftp --password="password" "userid"@"servername"
Bat...