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Reset auto increment counter in postgres
...ated the table product with an id column, then the sequence is not simply called product, but rather product_id_seq (that is, ${table}_${column}_seq).
This is the ALTER SEQUENCE command you need:
ALTER SEQUENCE product_id_seq RESTART WITH 1453
You can see the sequences in your database using the...
Difference between subprocess.Popen and os.system
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@JacobMarble so suppose I am calling a selenium scraping script from another python script, which of these would allow me to complete the scraping script and then and only then execute the next line of code? As in, my scraping should complete before the e...
What is the Scala annotation to ensure a tail recursive function is optimized?
...e to Scala version 2.8.0.RC5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_18).
Type in expressions to have them evaluated.
Type :help for more information.
scala> import scala.annotation.tailrec
import scala.annotation.tailrec
scala> class Tails {
| @tailrec def boom(x: Int): Int = {
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Paging UICollectionView by cells, not screen
...nformance and set a value for pageWidth:
func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
let pageWidth = // The width your page should have (plus a possible margin)
let proportionalOffset = collectionView.contentOffset.x / pageWidth
indexOfCellBeforeDragging = Int(round(p...
What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
...can omit dot when using the prefix, infix and postfix notations -- the so called operator notation. While using the operator notation, and only then, you can omit the parenthesis if there is less than two parameters passed to the method.
Now, the operator notation is a notation for method-call, whi...
Entity Framework with NOLOCK
...a transaction and set the isolation level to read uncommited. This essentially does the same as NOLOCK, but instead of doing it on a per table basis, it will do it for everything within the scope of the transaction.
If that sounds like what you want, here's how you could go about doing it...
//de...
Regular expressions in an Objective-C Cocoa application
...ar expressions for substring searches, e.g. [myString rangeOfString:@"regex_here" options:NSRegularExpressionSearch]
– Nestor
Apr 28 '11 at 15:23
1
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Git merge without auto commit
... FYI: If you want to merge the changes and then commit as if you had manually typed all of the changes you merged in (as opposed to a traditional merge) you need to run rm .git/MERGE_HEAD afterward, which will force git to forget that the merge happened.
– Jonn
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Rolling or sliding window iterator?
...nder why the default window size should be 2? Should it have a default at all?
– SingleNegationElimination
Jul 25 '11 at 22:02
19
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How to return a string value from a Bash function
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+1 @tomas-f : you have to be really careful on what you have in this function "getSomeString()" as having any code which will eventually echo will mean that you get incorrect return string.
– Mani
Sep 14 '12 at 16:38
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