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abort, terminate or exit?
What's the difference between those three, and how shall I end program in case of exception which I can't handle properly?
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What's the best way to detect a 'touch screen' device using JavaScript?
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The double bang casts a value to a boolean, forcing the function to return either true or false. You can read more about it here: stackoverflow.com/questions/4686583/…
– Rob Flaherty
Apr 28 '12 at 14:...
INSERT INTO vs SELECT INTO
...ect list. So in your example you could rectify the situation by explicitly casting the varchar to a size that would suffice. Correct?
– jowenece
Aug 4 '11 at 20:59
2
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Export specific rows from a PostgreSQL table as INSERT SQL script
..._ident(colrec.column_name) || ',';
selquery := selquery || 'CAST(' || quote_ident(colrec.column_name) || ' AS TEXT),';
END LOOP label0;
dumpquery_0 := substring(dumpquery_0 ,1,length(dumpquery_0)-1) || ')';
dumpquery_0 := dumpquery_0 || ' VALUES (';
selquery :=...
SQL Server Text type vs. varchar data type [closed]
...05 you can directly access TEXT columns (though you still need an explicit cast to VARCHAR to assign a value for them).
TEXT is good:
If you need to store large texts in your database
If you do not search on the value of the column
If you select this column rarely and do not join on it.
VARCHAR is...
How to join strings in Elixir?
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"my name is "
Also consider types. With <> you don't get any free casting:
iex(5)> "my name is " <> 1
** (ArgumentError) expected binary argument in <> operator but got: 1
(elixir) lib/kernel.ex:1767: Kernel.wrap_concatenation/3
(elixir) lib/kernel.ex:1758: Kernel.ex...
What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
I tried researching the difference between cout , cerr and clog on the internet but couldn't find a perfect answer. I still am not clear on when to use which. Can anyone explain to me, through simple programs and illustrate a perfect situation on when to use which one?
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...ject from 0 which is an integer.
0 == False returns True because False is cast to an integer. int(False) returns 0
The python documentation of the == operator says (help('==')):
The operators <, >, ==, >=, <=, and != compare the values of two objects. The objects need not have the...
Java: int array initializes with nonzero elements
... with a situation where it is not. Such a behavior occurs first in JDK 7u4 and also occurs in all later updates (I use 64-bit implementation). The following code throws exception:
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Python in Xcode 4+?
...Other” in the left pane, then "External Build System" in the right page, and next click "Next".
Enter the product name, organization name, or organization identifier.
For the “Build Tool” field, type in /usr/local/bin/python3 for Python 3 or /usr/bin/python for Python 2 and then click “Next...