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PostgreSQL delete all content
...omers. When you try to TRUNCATE / DELETE FROM the table that is referenced by other table/s (the other table/s has foreign key constraint to the named table) you get an error. To delete content from all three tables you have to name all these tables (the order is not important)
TRUNCATE customers, ...
How to set a selected option of a dropdown list control using angular JS
...same issue I thought of sharing how I got the solution.
You can use track by attribute in your ng-options.
Assume that you have:
variants:[{'id':0, name:'set of 6 traits'}, {'id':1, name:'5 complete sets'}]
You can mention your ng-options as:
ng-options="v.name for v in variants track by v.id...
Pythonic way to create a long multi-line string
...es part of the string, so this example has a leading blank (as pointed out by @root45). This string will also contain both blanks and newlines.
I.e.,:
' this is a very\n long string if I had the\n energy to type more and more ...'
Finally, one can also construct long lines in Pytho...
MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
as the title says, I want to perform a find (one) for a document, by _id, and if doesn't exist, have it created, then whether it was found or was created, have it returned in the callback.
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sqlalchemy unique across multiple columns
...sents locations. Locations "belong" to customers. Locations are identified by a unicode 10 character code. The "location code" should be unique among the locations for a specific customer.
...
ListView addHeaderView causes position to increase by one?
...ding the headerView causes the position in the onItemClick to be increased by one.
11 Answers
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Using “label for” on radio buttons
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How do I sort an NSMutableArray with custom objects in it?
...d let's say they are 'Person' objects. I want to sort the NSMutableArray by Person.birthDate which is an NSDate .
27 Ans...
Entity Framework and SQL Server View
...S. The changes you made in the designer will be preserved and not affected by the refresh.
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Insert Update stored proc on SQL Server
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The best strategy is to attempt the
update. If no rows are affected by the
update then insert. In most
circumstances, the row will already
exist and only one I/O will be
required.
Edit:
Please check out this answer and the linked blog post to learn about the problems with this patt...