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How to use background thread in swift?
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The best practice is to define a reusable function that can be accessed multiple times.
REUSABLE FUNCTION:
e.g. somewhere like AppDelegate.swift as a Global Function.
func backgroundThread(_ delay: Double = 0.0, background: (() -> Void)? = nil, completion: (() -> Void)? = nil) {
dispat...
How to delete large data of table in SQL without log?
...f rows at a time
DELETE TOP (10000) LargeTable
WHERE readTime < dateadd(MONTH,-7,GETDATE())
SET @Deleted_Rows = @@ROWCOUNT;
END
and dont forget to change the Recovery mode back to full and I think you have to take a backup to make it fully affective (the change or recovery modes...
What does principal end of an association means in 1:1 relationship in Entity framework
...;}
public Foo Foo{get;set;}
}
Or fluent mapping
modelBuilder.Entity<Foo>()
.HasOptional(f => f.Boo)
.WithRequired(s => s.Foo);
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LINQ to SQL - Left Outer Join with multiple join conditions
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You need to introduce your join condition before calling DefaultIfEmpty(). I would just use extension method syntax:
from p in context.Periods
join f in context.Facts on p.id equals f.periodid into fg
from fgi in fg.Where(f => f.otherid == 17).DefaultIfEmpty()
where p.companyid == 1...
How to escape text for regular expression in Java
Does Java have a built-in way to escape arbitrary text so that it can be included in a regular expression? For example, if my users enter "$5", I'd like to match that exactly rather than a "5" after the end of input.
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How to convert milliseconds into human readable form?
...esents floating point division, you will need to manually truncate the results of the division as needed.
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How do I list all the columns in a table?
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use <database_name>; show columns in <table_name> like '<column_prefix>%'; Will let you list only the columns starting with the prefix specified. Omitting the angle brackets of course.
– rs...
java.lang.OutOfMemoryError: Java heap space
I am getting the following error on execution of a multi-threading program
11 Answers
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c++11 Return value optimization or move? [duplicate]
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Use exclusively the first method:
Foo f()
{
Foo result;
mangle(result);
return result;
}
This will already allow the use of the move constructor, if one is available. In fact, a local variable can bind to an rvalue reference in a return statement precisely when copy elis...
Naming of ID columns in database tables
...ny tables with ID as the id you are making reporting that much more difficult. It obscures meaning and makes complex queries harder to read as well as requiring you to use aliases to differentiate on the report itself.
Further if someone is foolish enough to use a natural join in a database where ...