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Chrome: timeouts/interval suspended in background tabs?
...appliances not dramatically inaccurate. Now if I run the test in in Chrome and let it run in a background tab (so, switching to another tab and browse on there), returning to the test and inspecting te results (if the test finished) they are dramatically changed. It looks like the timeouts have been...
'IF' in 'SELECT' statement - choose output value based on column values
I need amount to be amount if report.type='P' and -amount if report.type='N' . How do I add this to the above query?
...
JavaScript pattern for multiple constructors
...ors.
If you want a function to behave differently depending on the number and types of parameters you pass to it, you'll have to sniff them manually. JavaScript will happily call a function with more or fewer than the declared number of arguments.
function foo(a, b) {
if (b===undefined) // par...
Cannot issue data manipulation statements with executeQuery()
In MySQL I have two tables, tableA and tableB . I am trying to execute two queries:
10 Answers
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Redis strings vs Redis hashes to represent JSON: efficiency?
...e cases):
Store the entire object as JSON-encoded string in a single key and keep track of all Objects using a set (or list, if more appropriate). For example:
INCR id:users
SET user:{id} '{"name":"Fred","age":25}'
SADD users {id}
Generally speaking, this is probably the best method in most cas...
Merge up to a specific commit
...med newbranch from the master branch in git. Now I have done some work and want to merge newbranch to master ; however, I have made some extra changes to newbranch and I want to merge newbranch up to the fourth-from-the-last commit to master .
...
How can I change the table names when using ASP.NET Identity?
...sion (RTM, not RC) of Visual Studio 2013 (downloaded from MSDN 2013-10-18) and therefore the latest (RTM) version of AspNet.Identity. When I create a new web project, I select "Individual User Accounts" for authentication. This creates the following tables:
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Validate that a string is a positive integer
...ng(n) === str && n >= 0;
}
or if you want to allow whitespace and leading zeros:
function isNormalInteger(str) {
str = str.trim();
if (!str) {
return false;
}
str = str.replace(/^0+/, "") || "0";
var n = Math.floor(Number(str));
return n !== Infinity &am...
Is there a way to access the “previous row” value in a SELECT statement?
...u want to order alphabetically) then I don't know of a way to do that in standard SQL, but most SQL implementations will have extensions to do it.
Here is a way for SQL server that works if you can order rows such that each one is distinct:
select rank() OVER (ORDER BY id) as 'Rank', value into...
conditional unique constraint
...onstraint like this. The difference is, you'll return false if Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS INT...