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SQL - using alias in Group By
...ause
HAVING clause
SELECT clause
ORDER BY clause
For most relational database systems, this order explains which names (columns or aliases) are valid because they must have been introduced in a previous step.
So in Oracle and SQL Server, you cannot use a term in the GROUP BY clause that you defin...
Convert InputStream to BufferedReader
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What is a method that can be used to increment letters?
...ded to use sequences of letters multiple times and so I made this function based on this SO question. I hope this can help others.
function charLoop(from, to, callback)
{
var i = from.charCodeAt(0);
var to = to.charCodeAt(0);
for(;i<=to;i++) callback(String.fromCharCode(i));
}
fro...
When to use UICollectionView instead of UITableView?
...
its all based on main requirement. Collection view introduce late and till then all dev use table to make grid and that kind of stuff. but now a days collectionview is most populor to use for making layout like tableview. as well so ...
MySQL “WITH” clause
...ommon table expressions:
Oracle 9i release 2 and later:
http://www.oracle-base.com/articles/misc/with-clause.php
Microsoft SQL Server 2005 and later:
http://msdn.microsoft.com/en-us/library/ms190766(v=sql.90).aspx
IBM DB2 UDB 8 and later:
http://publib.boulder.ibm.com/infocenter/db2luw/v8/index.jsp...
Lists in ConfigParser
...lue, flatten=True):
""" Return a list of strings, separating the input based on newlines
and, if flatten=True (the default), also split on spaces within
each line."""
values = aslist_cronly(value)
if not flatten:
return values
result = []
for value in values:
...
Why can't variable names start with numbers?
...This goes way back - before special notations to denote storage or numeric base.
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How to debug a GLSL shader?
...ementation of toColor():
const int emax=127;
// Input: x>=0
// Output: base 2 exponent of x if (x!=0 && !isnan(x) && !isinf(x))
// -emax if x==0
// emax+1 otherwise
int floorLog2(float x)
{
if(x==0.) return -emax;
// NOTE: there exist values of x, for whic...
How do I use VaryByParam with multiple parameters?
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How can I request the vibrate permission?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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