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MySQL DISTINCT on a GROUP_CONCAT()
I am doing SELECT GROUP_CONCAT(categories SEPARATOR ' ') FROM table . Sample data below:
6 Answers
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Method to Add new or update existing item in Dictionary
In some legacy code i have see the following extension method to facilitate adding a new key-value item or updating the value, if the key already exists.
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Android: create a popup that has multiple selection options
I've been searching around trying to figure out how to create a popup or a dialog that has 4 options to choose from.
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Find rows with multiple duplicate fields with Active Record, Rails & Postgres
What is the best way to find records with duplicate values across multiple columns using Postgres, and Activerecord?
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How do I call setattr() on the current module?
What do I pass as the first parameter " object " to the function setattr(object, name, value) , to set variables on the current module?
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Making interface implementations async
I’m currently trying to make my application using some Async methods.
All my IO is done through explicit implementations of an interface and I am a bit confused about how to make the operations async.
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Create a nonclustered non-unique index within the CREATE TABLE statement with SQL Server
It is possible to create a primary key or unique index within a SQL Server CREATE TABLE statement. Is it possible to create a non-unique index within a CREATE TABLE statement?
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Is it possible to execute code once before all tests run?
Basically I would like to tell MSTest to execute a bit of code before launching into a series of test runs, essentially what I would like to do is the same thing as sticking some code in Main() .
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How can I count the number of matches for a regex?
Let's say I have a string which contains this:
5 Answers
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RegEx to make sure that the string contains at least one lower case char, upper case char, digit and
What is the regex to make sure that a given string contains at least one character from each of the following categories.
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