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How to use shell commands in Makefile
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With:
FILES = $(shell ls)
indented underneath all like that, it's a build command. So this expands $(shell ls), then tries to run the command FILES ....
If FILES is supposed to be a make variable, these variables need to be assigned outside the recipe portion, e.g.:
F...
How to convert an Stream into a byte[] in C#? [duplicate]
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Call next function like
byte[] m_Bytes = StreamHelper.ReadToEnd (mystream);
Function:
public static byte[] ReadToEnd(System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
{...
Is there a way to select sibling nodes?
...lways is inspiring. I dug further. This is how jQuery gets siblings essentially:
function getChildren(n, skipMe){
var r = [];
for ( ; n; n = n.nextSibling )
if ( n.nodeType == 1 && n != skipMe)
r.push( n );
return r;
};
function getSiblings(n) {
r...
How can I combine two commits into one commit? [duplicate]
...mmit, you can run git rebase -i HEAD~2, which will spawn an editor listing all the commits the rebase will traverse. You should see two lines starting with "pick". To proceed with squashing, change the first word of the second line from "pick" to "squash". Then save your file, and quit. Git will squ...
What is the optimal Jewish toenail cutting algorithm?
I am working on the software for a machine that will automatically trim toenails, so that users can simply put their feet in it and run it instead of having to manually do it by biting them or using nail clippers.
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SQL query to group by day
I want to list all sales, and group the sum by day.
8 Answers
8
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How to get users to read error messages?
... how hard you try, do not use colours to identify the message...psychologically, it's akin to waving a red-flag to the bull!
Use neutral sounding words to convey minimal reaction and how to proceed!
It may be better to show a dialog box listing the neutral error message and to include a checkbox ind...
Why is using a wild card with a Java import statement bad?
...t and com.mycompany.calendar.Event, and so you can't even compile.
You actually manage only to import one (only one of your two imports does .*), but it's the wrong one, and you struggle to figure out why your code is claiming the type is wrong.
When you compile your code there is no com.mycompany.c...
NoSql vs Relational database
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Not all data is relational. For those situations, NoSQL can be helpful.
With that said, NoSQL stands for "Not Only SQL". It's not intended to knock SQL or supplant it.
SQL has several very big advantages:
Strong mathemat...
CHECK constraint in MySQL is not working
...ySQL Reference Manual says:
The CHECK clause is parsed but ignored by all storage engines.
Try a trigger...
mysql> delimiter //
mysql> CREATE TRIGGER trig_sd_check BEFORE INSERT ON Customer
-> FOR EACH ROW
-> BEGIN
-> IF NEW.SD<0 THEN
-> SET NEW.SD=0;...