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SQL error “ORA-01722: invalid number”
... to a number, and the spaces that delimit it are throwing this error. But based on the information you've given us, it could be happening on any field (other than the first one).
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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
... Does an inherited destructor count? I mean, say I've got a base class with an empty virtual destructor. Does it prevent creation of move constructors in subclasses? If the answer is yes, will it help if I define a move constructor in the base class?
– kamilk
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deny direct access to a folder and file by htaccess
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This is pure mod_rewrite based solution:
RewriteRule ^(includes/|submit\.php) - [F,L,NC]
This will show forbidden error to use if URI contains either /includes/ or /submit.php
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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
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Simplest solution:
To drop duplicates based on one column:
df = df.drop_duplicates('column_name', keep='last')
To drop duplicates based on multiple columns:
df = df.drop_duplicates(['col_name1','col_name2','col_name3'], keep='last')
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Display filename before matching line
... search.
-n, --line-number
Prefix each line of output with the 1-based line number within its
input file. (-n is
specified by POSIX.)
-H is a GNU extension, but -n is specified by POSIX
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On a CSS hover event, can I change another div's styling? [duplicate]
...ithin a separate wrapper div, the hover over effect does not work. Any CSS-based solution that can somehow get this to work? (An example might be something like: A**<div class="wrapper01"><div id="a">Div A</div></div> and **B <div class="wrapper02"><div id="b">Div...
How Do I Convert an Integer to a String in Excel VBA?
...rsions, implicit accessibility, implicit default member access, implicit 1-based arrays with Option Base 1, implicit typing with Def[Type] (boy that's EVIL!), implicit... you get it - the only good implicit thing in VBA is the implicit call syntax that made the explicit Call obsolete.
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Changing the browser zoom level
... you can get pretty close with CSS transform: scale(). Here is my solution based on JavaScript and jQuery:
<!-- Trigger -->
<ul id="zoom_triggers">
<li><a id="zoom_in">zoom in</a></li>
<li><a id="zoom_out">zoom out</a></li>
<...
How to build a Debian/Ubuntu package from source?
...cial" way is to check build depends is if the package builds with only the base system, the "build-essential" packages, and the build dependencies you have specified. Don't know a general answer for regular Dependencies, just wade in :)
How I can I prevent the update system installing the older...
What is the purpose of mock objects?
...onent focuses on how the waiter interacts with the cook component . A mock-based approach focuses on fully specifying what the correct interaction is and detecting when it goes awry.
The mock object knows in advance what is supposed to happen during the test (e.g. which of its methods calls will be...