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MySQL 'create schema' and 'create database' - Is there any difference
...ema access to tables and views, but I assume it did.
AFAIR, no product (at least back then) really implemented it, that whole
concept was more theory than practice.
OTOH, ISTR this version of the standard did not have the concept of a
"user" or a "CREATE USER" command, so there were products th...
Connecting to Azure website via FTP
...ystem generated string
obviously, this is not meant for human user...at least I cannot easily remember a 20+ character random string...
2, there is a more user friendly way, you can set a username and password in azure portal
however "deployment user name" is directly tied to a Microsoft Acco...
Git submodule push
...le commits that changed in the revisions to be pushed are available on at least one remote of the submodule. If any commits are missing, the push will be aborted and exit with non-zero status.
If the value is 'on-demand' then all submodules that changed in the revisions to be pushed will be pus...
std::auto_ptr to std::unique_ptr
...gt; p(new int);
std::auto_ptr<int> p2 = p;
will have to become at least like this
std::unique_ptr<int> p(new int);
std::unique_ptr<int> p2 = std::move(p);
As for other differences, unique_ptr can handle arrays correctly (it will call delete[], while auto_ptr will attempt to c...
Give all the permissions to a user on a DB
...atabase, obviously:
GRANT CONNECT ON DATABASE my_db TO my_user;
And (at least) the USAGE privilege on the schema:
GRANT USAGE ON SCHEMA public TO my_user;
Or grant USAGE on all custom schemas:
DO
$$
BEGIN
-- RAISE NOTICE '%', ( -- use instead of EXECUTE to see generated commands
EXECUT...
How to use the pass statement?
... is supposed to happen, and does not need to be actually evaluated and (at least temporarily) stored in memory.
Ignoring (all or) a certain type of Exception (example from xml):
try:
self.version = "Expat %d.%d.%d" % expat.version_info
except AttributeError:
pass # unknown
Note: Ignorin...
How can I obtain the element-wise logical NOT of a pandas Series?
...
@blz: At least on my Ubuntu machine, running NumPy 1.6.2, the performance of np.invert(s), ~s and -s are all the same.
– unutbu
Apr 14 '13 at 13:47
...
How to prevent multiple instances of an Activity when it is launched with different Intents
...ted is not the root activity of the task, there must (by definition) be at least one other activity underneath it. If this activity calls finish() then the user will see the activity that was underneath. Because of that you can safely assume that the existing instance of the app will be brought to t...
'typeid' versus 'typeof' in C++
...ay that cat derives animal:
animal* a = new cat; // animal has to have at least one virtual function
...
if( typeid(*a) == typeid(cat) )
{
// the object is of type cat! but the pointer is base pointer.
}
share
...
How to check for valid email address? [duplicate]
...ress) is usually enough. Something like: it has exactly one @ sign, and at least one . in the part after the @:
[^@]+@[^@]+\.[^@]+
You'd probably also want to disallow whitespace -- there are probably valid email addresses with whitespace in them, but I've never seen one, so the odds of this bein...