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PostgreSQL delete all content
...he 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, loyalty_cards, orders;
or just the table that is referenced with CASCADE key word (you can n...
Secure hash and salt for PHP passwords
...rio.
– frankodwyer
Dec 30 '08 at 23:05
2
sorry, i misread your answer as recommending using two h...
Why is __init__() always called after __new__()?
...rned object of __new__ is checked for its class, the method would throw an error rather than allow the failed check to pass silently, because I do not understand why you'd ever want to return anything but an object of the class.
– soporific312
Apr 20 at 17:16
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What is the difference between connection and read timeout for sockets?
...to send a byte <timeout> seconds after the last byte, a read timeout error will be raised.
2) What does connection timeout set to "infinity" mean? In what situation can it remain in an infinitive loop? and what can trigger that the infinity-loop dies?
It means that the connection attempt...
When should we implement Serializable interface?
...dition checks your constructors or factory methods perform. Unless tricky, error prone, and difficult to test extra deserialization code is written, your code probably has a gaping security weakness.
Testing interoperability of different versions of the serialized form is very difficult.
Handling of...
What's the difference between and
...boolean instanceTest = aList instanceof List<?>;
but this gives an error
List aList = new ArrayList<>();
boolean instancetest = aList instanceof List<? extends Object>;
for more info read Java generics and collections by Maurice Naftalin
...
How do I Moq a method that has an optional argument in its signature without explicitly specifying i
... mock an interface (IDConnection in Dapper) and I'm still getting the same error. Any ideas why? Sample line: mockDB.Setup(x => x.Query<MyObject>(It.IsAny<string>(), It.IsAny<DynamicParameters>(), It.IsAny<IDbTransaction>(), false, 600)).Returns(new List<MyObject>())...
Passing enum or object through an intent (the best solution)
...by tedzyc about the fact that the solution provided by Oderik gives you an error. However, the alternative offered is a bit cumbersome to use (even using generics).
If you are really worried about the performance of adding the enum to an Intent I propose these alternatives instead:
OPTION 1:
publ...
What does get-task-allow do in Xcode?
... write here "Entitlements.plist"
I did this and xcode don not get anymore error
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What does 'wb' mean in this code, using Python?
...8.04 running Python 3.6.8, the 'binary mode' definitely mattered. I got an error trying to write to a text file (CSV format, not that it ultimately matters that much) that was opened with the wb option. By using the w option instead, I was able to get it to work properly.
– The...