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What is causing this ActiveRecord::ReadOnlyRecord error?
This follows this prior question, which was answered. I actually discovered I could remove a join from that query, so now the working query is
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How big is too big for a PostgreSQL table?
...ment team has already run into a bit of a debate about the design, specifically the database.
2 Answers
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Check folder size in Bash
...arent sizes, rather than disk usage; although the apparent size is usually smaller, it may be larger due to holes in ('sparse')
files, internal fragmentation, indirect blocks, and the like
And of course theres no need for -h (Human readable) option inside a script.
Instead You can use ...
How to add Active Directory user group as login in SQL Server
... Thank you for a very clear answer with annotated screen shots! I wish all answers were like this...
– NickG
Jan 17 '13 at 15:13
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how to permit an array with strong parameters
...ermit expects each argument to be a Hash or a Symbol. Ruby magic will turn all key value pairs s at the end of a method call into one hash, but Ruby won't know what to do if you mix symbols with key/value pairs in your method call.
– sameers
Nov 20 '13 at 0:05
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Apple Mach-O Linker Error when compiling for device
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Here is permanent solution.Generally overwriting project may cause this prolems.Try this method.
-UPDATE - Clang error - Mach-O Linker error
In some case error log window displaying .xctest error, to fix it
-> Select your project
-> Beside this(ju...
How to kill a child process after a given timeout in Bash?
I have a bash script that launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not re...
Integer division: How do you produce a double?
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Widening primitive conversions do not
lose information about the overall
magnitude of a numeric value.
[...]
Conversion of an int or a long value
to float, or of a long value to
double, may result in loss of
precision-that is, the result may lose
some of the least significa...
Python: Select subset from list based on index set
I have several lists having all the same number of entries (each specifying an object property):
5 Answers
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Any way to declare a size/partial border to a box?
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Not really. But it's very easy to achieve the effect in a way that degrades gracefully and requires no superfluous markup:
div {
width: 350px;
height: 100px;
background: lightgray;
position: relative;
margin: 20...