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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
...DROP { [ CONSTRAINT ] constraint_name | COLUMN column } [ ,...n ]
For MySQL:
ALTER TABLE TableName
DROP COLUMN Column1,
DROP COLUMN Column2;
or like this1:
ALTER TABLE TableName
DROP Column1,
DROP Column2;
1 The word COLUMN is optional and can be omitted, except for RENAME...
What does the “map” method do in Ruby?
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map, along with select and each is one of Ruby's workhorses in my code.
It allows you to run an operation on each of your array's objects and return them all in the same place. An example would be to increment an array of numbers by one:
[1,2,3].map {|x| x + 1 }
#=> [2,3,4]
If you...
How to get existing fragments when using FragmentPagerAdapter
I have problem making my fragments communicating with each other through the Activity , which is using the FragmentPagerAdapter , as a helper class that implements the management of tabs and all details of connecting a ViewPager with associated TabHost . I have implemented FragmentPagerAdapter...
Javascript objects: get parent [duplicate]
...uestion but as I came across it looking for an answer I thought I will add my answer to this to help others as soon as they got the same problem.
I have a structure like this:
var structure = {
"root":{
"name":"Main Level",
nodes:{
"node1":{
"name":"...
How to add leading zeros?
...00000001" "00000010" "00000100" "00001000" "00010000" "00100000"
This is my favourite solution, since it is easy to tinker with changing the width, and the function is powerful enough to make other formatting changes.
sprintf is an interface to the C function of the same name; like formatC but ...
Remove vertical padding from horizontal ProgressBar
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This is how I used Juozas's answer:
height of my ProgressBar is 4dp. So I created a FrameLayout with height 4dp and set the layout_gravity of ProgressBar to center. It's works like a charm.
<FrameLayout
android:layout_width="match_parent"
android:layout_heigh...
How can I echo a newline in a batch file?
... problem and none of these work. You need to echo in a single statement in my example. I am generating some tex files from HTML and generating a Makefile by using echo "Makefile contents (which has \n)" > Makefile With multiple echos, it wouldn't work
– Shahbaz
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How to properly override clone method?
I need to implement a deep clone in one of my objects which has no superclass.
9 Answers
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How to make button look like a link?
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My very slight variation on the fiddle - moved the text-decoration:underline rule to act on button:hover. see in my forked fiddle.
– odedbd
Jan 30 '13 at 7:18
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Get current directory name (without full path) in a Bash script
...s the rest of the directory to provide only the basename. I have a link in my answer to the documentation on parameter expansion; feel free to follow that if you have any questions.
– Charles Duffy
Nov 25 '11 at 14:07
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