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I need to store postal codes in a database. How big should the column be?
...ind to have even 15 characters because it could only be less problem later if we have to adjust column length, also with right use of data types, it should not take all 15 characters anyway (possibly varchar or nvarchar or like?).
– Manohar Reddy Poreddy
Mar 8 ...
How to get the parents of a merge commit in git?
...eir number: the first (leftmost) hash is for the first parent, and so on.
If all you want is just the hashes, the two equivalent choices are:
$ git log --pretty=%P -n 1 <commit>
$ git show -s --pretty=%P <commit>
git rev-list can also show the parents' hashes, though it will first li...
Stop setInterval
...rval in the error handler from running repeatedly. Is that possible, and if so, how?
6 Answers
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How to assign string to bytes array
...slices are "a viewport into underlying data".
Using [:] makes an array qualify as a slice.
A string does not qualify as a slice that can be copied to, but it qualifies as a slice that can be copied from (strings are immutable).
If the string is too long, copy will only copy the part of the string th...
MySQL: Can't create table (errno: 150)
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From the MySQL - FOREIGN KEY Constraints Documentation:
If you re-create a table that was dropped, it must have a definition that conforms to the foreign key constraints referencing it. It must have the correct column names and types, and it must have indexes on the referenced key...
How do I get bit-by-bit data from an integer value in C?
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If you want the k-th bit of n, then do
(n & ( 1 << k )) >> k
Here we create a mask, apply the mask to n, and then right shift the masked value to get just the bit we want. We could write it out more fully ...
How to see all TODO tasks in Android Studio?
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what if I cannot see this view?
– Mantas
Apr 30 '14 at 10:06
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How to store custom objects in NSUserDefaults
...me forKey:@"subcategory"];
}
- (id)initWithCoder:(NSCoder *)decoder {
if((self = [super init])) {
//decode properties, other class vars
self.question = [decoder decodeObjectForKey:@"question"];
self.categoryName = [decoder decodeObjectForKey:@"category"];
self.su...
Lua string to int
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All numbers in Lua are floats (edit: Lua 5.2 or less). If you truly want to convert to an "int" (or at least replicate this behavior), you can do this:
local function ToInteger(number)
return math.floor(tonumber(number) or error("Could not cast '" .. tostring(number) .. "' t...
JQuery .on() method with multiple event handlers to one selector
Trying to figure out how to use the Jquery .on() method with a specific selector that has multiple events associated with it. I was previously using the .live() method, but not quite sure how to accomplish the same feat with .on(). Please see my code below:
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