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What is the difference between SQL, PL-SQL and T-SQL?
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SQL a language for talking to the
database. It lets you select data,
mutate and create database objects
(like tables, views, etc.), change
database settings.
PL-SQL a procedural programming language (with embedded SQL)
T-SQL
(procedural) extensions for SQL used
by SQL Server
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Get the string representation of a DOM node
...(el) == "<p>Test</p>"
You'll find my jQuery plugin here: Get selected element's outer HTML
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Create tap-able “links” in the NSAttributedString of a UILabel?
...tureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapOnLabel:)]];
Now the most sophisticated stuff: finding out whether the tap was on where the link is displayed and not on any other portion of the label. If we had single-lined UILabel, this task could be ...
What’s the best RESTful method to return total number of items in an object?
...ich may make sense in some use cases (e.g. /books/231/pages/52. I ended up selecting a wild range of frequently used request parameters such as pagesize, page[size] and limit etc in addition to supporting the Range header (and as request parameter as well).
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Curly braces in string in PHP
...s the code I got from one wordpress plugin
$data = $wpdb->get_results("select * from {$wpdb->prefix}download_monitor_files");
This is really handy technique for formatting complex strings.
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Difference between float and decimal data type
...0,2), b float);
mysql> insert into numbers values (100, 100);
mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G
*************************** 1. row ***************************
@a := (a/3): 33.333333333
@b := (b/3): 33.333333333333
@a + @a + @a: 99.9999999990000000000000...
Visual Studio Solutions Folder as real Folders
...tion Folder'. This will create a solution folder with the same name as you selected and add the items inside of that folder to the solution folder. This will not move the files on disk.
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showDialog deprecated. What's the alternative?
...rride
public void onDateSet(DatePicker datepicker, int selectedyear, int selectedmonth, int selectedday)
{
ed_date.setText(new StringBuilder().append(year).append("-").append(month+1).append("-").append(day));
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...360 -0.229738
4 0.000000 0.000000
To fill the NaNs in only one column, select just that column. in this case I'm using inplace=True to actually change the contents of df.
In [12]: df[1].fillna(0, inplace=True)
Out[12]:
0 0.000000
1 0.570994
2 0.000000
3 -0.229738
4 0.000000
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Nullable Foreign Key bad practice?
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Using NULL would be a good way to clean up incomplete orders:
SELECT * FROM `orders`
WHERE `started_time` < (UNIX_TIMESTAMP() + 900) AND `customer_id` IS NULL
The above would show orders older than 15 minutes without a related customer ID.
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