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PostgreSQL query to return results as a comma separated list

Let say you have a SELECT id from table query (the real case is a complex query) that does return you several results. 5 ...
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How to convert R Markdown to PDF?

... Adding --toc would be useful on the command line (resulting in a nics table of content based on your headings) and also customizing the LaTeX template for your needs (like adding there \listoffigures and/or \listoftables etc.) could result in wonderful documents. – daroczi...
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Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?

...splay: flex to the cells too, so the image gets centered (I think display: table could have been used here as well with all this markup) share | improve this answer | follow ...
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Remove empty space before cells in UITableView

I am currently trying to put a UITableView in a different location rather than at the top of my view controller. With this said, it is trying to add the header in the top to account for the navigation bar, but this is not needed since I do not have at the top of my controller. ...
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Set a default parameter value for a JavaScript function

... Here is the compatibility table for ES6 kangax.github.io/compat-table/es6/#default_function_parameters Unfortunately this syntax isn't supported yet. – freemanoid Jul 9 '15 at 19:03 ...
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How is Math.Pow() implemented in .NET Framework?

...plemented in the CLR, written in C++. The just-in-time compiler consults a table with internally implemented methods and compiles the call to the C++ function directly. Having a look at the code requires the source code for the CLR. You can get that from the SSCLI20 distribution. It was written arou...
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MySQL - Using COUNT(*) in the WHERE clause

...similar to this: SELECT column_name, aggregate_function(column_name) FROM table_name WHERE column_name operator value GROUP BY column_name HAVING aggregate_function(column_name) operator value; share | ...
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Why does NULL = NULL evaluate to false in SQL server

... @NeilMcGuigan That's true if for data that has its own table, but what about data that's represented in a column? Wouldn't you use 'null' to represent the fact that the data doesn't exist? 'Not known' is a very specific reason for the data being absent. – Ri...
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Bootstrap 3 Collapse show state with Chevron icon

...Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS. </div> </div> </div> <div class="panel panel-default"> <div clas...
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Extract date (yyyy/mm/dd) from a timestamp in PostgreSQL

... Use the date function: select date(timestamp_field) from table From a character field representation to a date you can use: select date(substring('2011/05/26 09:00:00' from 1 for 10)); Test code: create table test_table (timestamp_field timestamp); insert into test_table (tim...