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Indenting #defines
...o should not be part of the normal flow of code).
You can even see that SO does not color the sequence in a useful manner.
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What's the difference between := and = in Makefile?
...gnment ?=
Conditional assignment assigns a value to a variable only if it does not have a value
Appending +=
Assume that CC = gcc then the appending operator is used like CC += -w
then CC now has the value gcc -W
For more check out these tutorials
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Test if object implements interface
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The instanceof operator does the work in a NullPointerException safe way. For example:
if ("" instanceof java.io.Serializable) {
// it's true
}
yields true. Since:
if (null instanceof AnyType) {
// never reached
}
yields false, t...
What do the makefile symbols $@ and $< mean?
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It's worth noting that $@ does not necessarily have to end up being a file, it could also be the name of a .PHONY target.
– Ephemera
Apr 11 '15 at 8:04
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What is the Oracle equivalent of SQL Server's IsNull() function?
...LESCE is ANSI, supported by Postgres, MySQL... The only caveat is that it doesn't necessarily perform as fast as native syntax.
– OMG Ponies
Aug 19 '10 at 17:33
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Convert SQLITE SQL dump file to POSTGRESQL
...enerated by some SQLite3 clients, you need to remove them.
PostGRESQL also doesn't recognize unsigned columns, so you might want to drop that or add a custom-made constraint such as this:
CREATE TABLE tablename (
...
unsigned_column_name integer CHECK (unsigned_column_name > 0)
);
While ...
jquery-ui sortable | How to get it work on iPad/touchdevices?
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As of 1/2014, it does not work on Windows Phone's Internet Explorer. Hopefully, when other browsers become available this would work.
– edcincy
Jan 24 '14 at 18:38
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must appear in the GROUP BY clause or be used in an aggregate function
... @Sebas Your solution only adds a column (the MAX avg per cname) but it doesn't restrict the rows of the result (as the OP wants). See the Actual Results should be paragraph in the question.
– ypercubeᵀᴹ
Nov 1 '13 at 13:04
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Remove blank attributes from an Object in Javascript
... Hi, @EricNguyen, unlike C and other several languages, javascript does not have block scope for variables (only function scope), thus, the variable i will always leak into the scope after the for block.
– Gerardo Lima
May 10 '16 at 9:54
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Best practices for storing postal addresses in a database (RDBMS)?
...ave to deal with addresses in one country.
In my view, it is often (which does not mean always) sensible to both record the 'address label image' of the address and separately analyze the content. This allows you to deal with differences between the placement of postal codes, for example, between ...