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How Pony (ORM) does its tricks?
...ted in the first step, so let me explain how decompiling works.
Let's consider this query:
>>> from pony.orm.examples.estore import *
>>> select(c for c in Customer if c.country == 'USA').show()
Which will be translated into the following SQL:
SELECT "c"."id", "c"."email", "c"...
Is it possible to specify condition in Count()?
...y old, but I like the NULLIF trick for such scenarios, and I found no downsides so far. Just see my copy&pasteable example, which is not very practical though, but demonstrates how to use it.
NULLIF might give you a small negative impact on performance, but I guess it should still be faster tha...
Get HTML Source of WebElement in Selenium WebDriver using Python
...riptExecutor class in Python.
WebElement element = driver.findElement(By.id("foo"));
String contents = (String)((JavascriptExecutor)driver).executeScript("return arguments[0].innerHTML;", element);
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What are the pros and cons of both Jade and EJS for Node.js templating? [closed]
...ich make the code very confusing (at least for me)
a(href='/user/' + user.id)= user.name
Jade is also not designer-friendly. My designer friends often give me HTML and CSS (They switched to LESS recently but still want to use HTML), and for that reason if I use Jade I need to convert HTML to Jade...
Check if a div exists with jquery [duplicate]
...
Unless in code above they got something like $('#DivID') = null; Lol)
– ZurabWeb
Nov 6 '13 at 21:14
9
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PreparedStatement IN clause alternatives?
...search_column = ?, execute it for each value and UNION the results client-side. Requires only one prepared statement. Slow and painful.
Prepare SELECT my_column FROM my_table WHERE search_column IN (?,?,?) and execute it. Requires one prepared statement per size-of-IN-list. Fast and obvious.
Prepare...
Why doesn't logcat show anything in my Android?
Why doesn't logcat show anything in my Android (while developing apps with Eclipse)?
27 Answers
...
PHP Remove elements from associative array
...etimes an application architecture doesn't want you to mess with the array id, or makes it inconvenient. For instance, I use CakePHP quite a lot, and a database query returns the primary key as a value in each record, very similar to the above.
Assuming the array is not stupidly large, I would use...
Is the primary key automatically indexed in MySQL?
...
I guess this is the answer
mysql> create table test(id int primary key, s varchar(20));
Query OK, 0 rows affected (0.06 sec)
mysql> show indexes from test \G
*************************** 1. row ***************************
Table: test
Non_unique: 0
Key_name: ...
Check if a string has white space
... couldn't you put in s.indexOf(/^\s+$/) as well?
– Zoidberg
Nov 13 '09 at 19:08
2
this is not sup...