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insert a NOT NULL column to an existing table
...able standard, but invent their own just to have their own invented. Apart from that, helpful answer.
– Neonit
Sep 21 '16 at 8:56
2
...
How to check that an object is empty in PHP?
...(json_encode($obj), TRUE)` can be slow because
// you're converting to and from a JSON string.
// I don't know another simple way to do a deep conversion from object to array
$array = json_decode(json_encode($obj), TRUE);
if ( !array_filter($array) )
{
// empty or all properties falsey
}
Old...
What's the use of session.flush() in Hibernate
... after doing flush and before doing commit, if you access DB directly (say from SQL prompt) and check the modified rows, you will NOT see the changes.
This is same as opening 2 SQL command sessions. And changes done in 1 session are not visible to others until committed.
...
Full-screen iframe with a height of 100%
...lawlessly. So, the correct answer for the question, I think, is the answer from rudie, except that I had to keep my xhtml doctype. Also, note that the overflow rules are then not necessary. Scrollbars then work as intended - automatically.
– Spiralis
Nov 2 '11 ...
How can I make robocopy silent in the command line except for progress?
...ed the following 2 parameters:
/np /nfl
So together with the 5 parameters from AndyGeek's answer, which are /njh /njs /ndl /nc /ns you get the following and it's silent:
ROBOCOPY [source] [target] /NFL /NDL /NJH /NJS /nc /ns /np
/NFL : No File List - don't log file names.
/NDL : No Directory Lis...
Including a groovy script in another groovy
...
You must return an object from call one, then assign evaluate result to a variable.
– LoganMzz
Dec 5 '16 at 15:03
...
Why number 9 in kill -9 command in unix? [closed]
...ach signal is defined as a unique (small) integer, starting
sequentially from 1. These integers are defined in with
symbolic names of the form SIGxxxx . Since the actual numbers used for
each signal vary across implementations, it is these symbolic names
that are always used in programs.
...
Create a “with” block on several context managers? [duplicate]
...n 2.6 and 2.7.
In Python 2.6 and below, you can use contextlib.nested:
from contextlib import nested
with nested(A(), B(), C()) as (X, Y, Z):
do_something()
is equivalent to:
m1, m2, m3 = A(), B(), C()
with m1 as X:
with m2 as Y:
with m3 as Z:
do_something()
Not...
Use of the MANIFEST.MF file in Java
...All the entries are as name-value pairs. The name of a header is separated from its value by a colon. The default manifest shows that it conforms to version 1.0 of the manifest specification.
The manifest can also contain information about the other files that are packaged in the archive. Exactly wh...
Moving Git repository content to another repository preserving history
...s
git remote rm r1remote
After that repo2/master will contain everything from repo2/master and repo1/master, and will also have the history of both of them.
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