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What is eager loading?
...n asked. Classic example is when you multiply two matrices. You do all the calculations. That's eager loading;
Lazy loading: you only do a calculation when required. In the previous example, you don't do any calculations until you access an element of the result matrix; and
Over-eager loading: this ...
How to do a LIKE query in Arel and Rails?
..., User.where(users[:name].matches("%#{params[:user_name]}%")), I tried TRUNCATE users; and other such queries and nothing happened on the sql side. Looks safe to me.
– earlonrails
Aug 28 '13 at 18:56
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How to list records with date from the last 10 days?
...gresql.org/docs/current/static/functions-datetime.html shows operators you can use for working with dates and times (and intervals).
So you want
SELECT "date"
FROM "Table"
WHERE "date" > (CURRENT_DATE - INTERVAL '10 days');
The operators/functions above are documented in detail:
CURRENT_DAT...
HTML5 doctype putting IE9 into quirks mode?
...Abhishek: meta elements need not be explicitly closed in HTML5 (and historically against older HTML specs closing it would in fact be invalid).
– reisio
May 23 '12 at 19:19
4
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How to import module when module name has a '-' dash or hyphen in it?
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you can't. foo-bar is not an identifier. rename the file to foo_bar.py
Edit: If import is not your goal (as in: you don't care what happens with sys.modules, you don't need it to import itself), just getting all of the file's ...
Is there StartsWith or Contains in t sql with variables?
...ss Edition', @edition) >= 1
Examples
left function
set @isExpress = case when left(@edition, 15) = 'Express Edition' then 1 else 0 end
iif function (starting with SQL Server 2012)
set @isExpress = iif(left(@edition, 15) = 'Express Edition', 1, 0);
charindex function
set @isExpress = iif...
How do I get rid of this unwanted bar from Eclipse?
...lick it to show/hide breadcrumbs.
If you don't see it, let me know, and I can try to figure out which toolbar it is a part of.
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How do you use gcc to generate assembly code in Intel syntax?
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Clang cannot currently consume Intel syntax. See LLVM Bug 24232: [X86] Inline assembly operands don't work with .intel_syntax. Also, Clang ignores prefix/noprefix (not sure if it matters if Clang consumes the assembly).
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Java: using switch statement with enum under subclass
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Change it to this:
switch (enumExample) {
case VALUE_A: {
//..
break;
}
}
The clue is in the error. You don't need to qualify case labels with the enum type, just its value.
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Minimum and maximum date
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From the spec, §15.9.1.1:
A Date object contains a Number indicating a particular instant in time to within a millisecond. Such a Number is called a time value. A time value may also be NaN, indicating that the Date object does not represent a specific instant of time.
Time is measured ...