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PSQLException: current transaction is aborted, commands ignored until end of transaction block
...L by default stops you from doing this.
I'm using: PostgreSQL 9.1.6 on x86_64-redhat-linux-gnu, compiled by gcc (GCC) 4.7.2 20120921 (Red Hat 4.7.2-2), 64-bit".
My PostgreSQL driver is: postgresql-9.2-1000.jdbc4.jar
Using Java version: Java 1.7
Here is the table create statement to illustrate the E...
What does “for” attribute do in HTML tag?
.... The association between a label and a control may also be used by speech-based user agents, which may give the user a way to ask what the associated label is, when dealing with a control. (The association may not be as obvious as in visual rendering.)
In the first example in the question (without...
What is the difference between #import and #include in Objective-C?
...
64
I agree with Jason.
I got caught out doing this:
#import <sys/time.h> // to use gettim...
How do I profile memory usage in Python?
...3 1612820 49 1612820 49 str
1 11699 24 483960 15 2096780 64 tuple
2 174 0 241584 7 2338364 72 dict of module
3 3478 7 222592 7 2560956 78 types.CodeType
4 3296 7 184576 6 2745532 84 function
5 401 1 175112 5 2920644 ...
Java: Multiple class declarations in one file
... @BoomerRogers: No, this is definitely not the "core basis of component based programming". If you're programming against a component, why would you care how the source code is organized? (Personally I prefer dependency injection rather than the service locator pattern, but that's a different mat...
byte + byte = int… why?
...-value-of-some-bit-length.
In other words, this decision must have been based on perception of what the byte type is for, not due to underlying inefficiencies of hardware.
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Fill SVG path element with a background-image
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very nice, does this work with base64 images too? instead of wall.jpg something like data:image/png;base64,iVBORw0KGgoAA like you would in normal CSS?
– Christoph
May 10 '12 at 13:55
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How to avoid long nesting of asynchronous functions in Node.js
...reData, client)
},
function (err, results) {
var html = "<h1>Demo page</h1>";
html += "<p>" + results.someData + "</p>";
html += "<p>" + results.someOtherData + "</p>";
html += "<p>" + results.moreData + "</p>";
res.write(html);...
Split comma-separated strings in a column into separate rows
... is the fastest1.
The benchmarked solutions include
Matthew Lundberg's base R approach but modified according to Rich Scriven's comment,
Jaap's two data.table methods and two dplyr / tidyr approaches,
Ananda's splitstackshapesolution,
and two additional variants of Jaap's data.table methods.
...
Python to print out status bar and percentage
...
based on the above answers and other similar questions about CLI progress bar, I think I got a general common answer to all of them. Check it at https://stackoverflow.com/a/15860757/2254146
Here is a copy of the function, bu...