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Difference Between Schema / Database in MySQL
... exactly is a schemata in MySQL? All I could find are references to the information_schema schemata table but no concise definition as to what it actually means
– Alf47
Apr 6 at 21:00
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What are the best Haskell libraries to operationalize a program? [closed]
...ong that work is taking. Ideally, the collected metrics are available in a format that's compatible with commonly-used monitoring tools like Ganglia, or can be so munged.
I'm not aware of any standardized reporting tools, however, extracting reports from +RTS -s streams (or via profiling output fl...
Convert UNIX epoch to Date object
...o) default:
R> val <- 1352068320
R> as.POSIXct(val, origin="1970-01-01")
[1] "2012-11-04 22:32:00 CST"
R> as.Date(as.POSIXct(val, origin="1970-01-01"))
[1] "2012-11-05"
R>
Edit: A few years later, we can now use the anytime package:
R> library(anytime)
R> anytime(135206832...
Unable to cast object of type 'System.DBNull' to type 'System.String`
...
A shorter form can be used:
return (accountNumber == DBNull.Value) ? string.Empty : accountNumber.ToString()
EDIT: Haven't paid attention to ExecuteScalar. It does really return null if the field is absent in the return result. So u...
How do I format a number with commas in T-SQL?
...eyes are starting to gloss over. It would be really convenient if I could format all those numbers with commas (987654321 becomes 987,654,321). Funny that in all the many years I've used SQL Server, this issue has never come up since most of the time I would be doing formatting at the presentation...
What is the “continue” keyword and how does it work in Java?
...nded, but if you so choose you can also use continue to simulate a limited form of goto. In the following example the continue will re-execute the empty for (;;) loop.
aLoopName: for (;;) {
// ...
while (someCondition)
// ...
if (otherCondition)
continue aLoopName;
...
How do I implement onchange of with jQuery?
...
Since you can bind to multiple events $('form').on('change input', function); did the trick for me. Thanks.
– justnorris
Jul 5 '13 at 9:50
9
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Select2 dropdown but allow new values by user?
...pend that option like this: [{"text":" my NEW option)","id":"0"}]
When the form is submitted just check to see if that option is in the db and if not create it before saving.
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Is there some way to PUSH data from web server to browser?
...
you really like ellipses, and sometimes a new form of four dots which I shall call "ellipsos"!
– imbatman
Feb 19 '19 at 14:26
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How can two strings be concatenated?
... imagine that you are building up a matrix of strings. Each input argument forms a column, and is expanded to the length of the longest argument, using the usual recyling rules. The sep string is inserted between each column. If collapse is NULL each row is collapsed into a single string. If non-NUL...