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How to resolve “local edit, incoming delete upon update” message
...r structure but not your project file structure. additional steps may be required if you are in this case
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How do I group Windows Form radio buttons?
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@mohammadsadeghsaati The question was about the Windows Forms RadioButton, it does not expose a GroupName property.
– UweB
Jun 3 '14 at 8:32
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How to determine the version of the C++ standard used by the compiler?
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From the Bjarne Stroustrup C++0x FAQ:
__cplusplus
In C++0x the macro __cplusplus will be set to a value that differs
from (is greater than) the current 199711L.
Although this isn't as helpful as one would like. gcc (apparently for nearly 10 years)...
Split Python Flask app into multiple files
...tes in the routes directory.
Structure
app.py
routes
__init__.py
index.py
users.py
__init__.py
from flask import Blueprint
routes = Blueprint('routes', __name__)
from .index import *
from .users import *
index.py
from flask import render_template
from . import routes
@routes.ro...
MySQL DISTINCT on a GROUP_CONCAT()
...5),(6),(7),(8),(9),(10);
then we can run this query:
SELECT
SUBSTRING_INDEX(
SUBSTRING_INDEX(tableName.categories, ' ', numbers.n),
' ',
-1) category
FROM
numbers INNER JOIN tableName
ON
LENGTH(tableName.categories)>=
LENGTH(REPLACE(tableName.categories, ' ', ''))+num...
Serialize Class containing Dictionary member
...'t serialize a class that implements IDictionary. Check out this link.
Q: Why can't I serialize hashtables?
A: The XmlSerializer cannot process
classes implementing the IDictionary
interface. This was partly due to
schedule constraints and partly due to
the fact that a hashtable doe...
MySQL Creating tables with Foreign Keys giving errno: 150
... of table test/t2:
FOREIGN KEY (t1_id) REFERENCES t1 (id)):
Cannot find an index in the referenced table where the
referenced columns appear as the first columns, or column types
in the table and the referenced table do not match for constraint.
It says that the problem is it can’t find an index...
How to make an array of arrays in Java
...lements and there are specialized Collections for different functionality (index-based lookup, sorting, uniqueness, FIFO-access, concurrency etc.).
While it's of course good and important to know about Arrays and their usage, in most cases using Collections makes APIs a lot more manageable (which i...
What exactly are iterator, iterable, and iteration?
...n iterator, or which defines a __getitem__ method that can take sequential indexes starting from zero (and raises an IndexError when the indexes are no longer valid). So an iterable is an object that you can get an iterator from.
An iterator is an object with a next (Python 2) or __next__ (Python 3...
Creating a copy of a database in PostgreSQL [closed]
...reate database dialog but you should be able to execute the following in a query window if it doesn't:
CREATE DATABASE newdb WITH TEMPLATE originaldb OWNER dbuser;
Still, you may get:
ERROR: source database "originaldb" is being accessed by other users
To disconnect all other users from the d...