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Optimal way to concatenate/aggregate strings
...com/en-us/sql/t-sql/functions/string-agg-transact-sql
GROUP_CONCAT() in MySQL
http://dev.mysql.com/doc/refman/5.7/en/group-by-functions.html#function_group-concat
(Thanks to @Brianjorden and @milanio for Azure update)
Example Code:
select Id
, STRING_AGG(Name, ', ') Names
from Demo
group by I...
How to use npm with node.exe?
... separately.
I was facing permission issue while running npm (npm install mysql), from the path where my nodejs resided, i.e.
C:\Program Files (x86)\nodejs
Then I followed below steps:
1) Added C:\Program Files (x86)\nodejs\npm in environment variables - Path system variable.
2) went back to onl...
How to delete SQLite database from Android programmatically
...ge back "rm failed for mydatabase.db, Permission denied". Must you have a rooted phone for this to work? Or is there a way to specify a permission? Or does it only work on the emulator?
– PeteH
Jan 24 '13 at 7:21
...
Run PHP Task Asynchronously
... Perl or just about any other language. There are Gearman UDF plugins for MySQL and you can also use Net_Gearman from PHP or the gearman pear client.
– Justin Swanhart
Dec 22 '12 at 4:57
...
What is the difference between XML and XSD?
...
Take an example
<root>
<parent>
<child_one>Y</child_one>
<child_two>12</child_two>
</parent>
</root>
and design an xsd for that:
<xs:schema attributeFormDefault="unqualified" el...
CSS background-image - What is the correct usage?
...out of the CSS folder tree you should use absolute path or relative to the root path (starting with /)
3) you should use complete declaration for background-image to make it behave consistently across standards compliant browsers like:
background:blue url('/images/clouds.jpg') no-repeat scroll lef...
How to find corresponding log files folder for a web site?
...
It's also shown on the root Sites node, in the listing.
– Josh M.
Feb 3 '17 at 14:53
...
Where do the Python unit tests go?
...tion for my problem, with Python2.6 or newer, us to run the tests from the root of your project using: python -m project.package.tests.module_tests (instead of python project/package/tests/module_tests.py). This puts the test module's directory on the path, so the tests can then do a relative impor...
SQL query for today's date minus two months
...
If you use MySQL this would become: MyDate < DATE_ADD(NOW(), INTERVAL -2 MONTH)
– Stefan
Feb 27 '14 at 15:51
...
NoSQL (MongoDB) vs Lucene (or Solr) as your database
... Yes, this is exactly how I've used Lucene in the past with older SQL and MySql datastores (storing IDs in Lucene, and retrieving the complex types from the datastore). Technically though, this question was to explore the differences between the two - not exactly how to use the "best of both world...