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Rails: How to list database tables/objects using the Rails console?
...how the tables
.table
'.help' to see help.
Or use SQL statements like 'Select * from cars'
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How to remove all the null elements inside a generic list in one go?
...ach, but it brings a surprise to the developer who just thinks that OfType selects objects of a certain type, not thinking that it will not include null values ... So I'm a bit weary to introduce this into my own code.
– user3638471
Apr 12 '16 at 21:14
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PHP array: count or sizeof?
...his some bad design choice in the php interpreter that causes some sort of selective overhead? i would like to know how you benchmarked this, the microsecond measurement worries me. maybe try running this a huge amount of times in an outer for loop?
– FluorescentGreen5
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click or change event on radio using jquery
... This doesn't work for me when a single radio is targeted and selecting another radio causes the other to deselect.
– Doug Amos
Jul 12 '13 at 8:03
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ASP.NET MVC HandleError
...iews, controllers and models in it and now it works. Didn't know about the selective views though.
– Boris Callens
Oct 10 '08 at 19:27
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How big is too big for a PostgreSQL table?
...what you get. Testing one table with 90 million rows may be as easy as:
select x,1 as c2,2 as c3
from generate_series(1,90000000) x;
https://wiki.postgresql.org/wiki/FAQ
Limit Value
Maximum Database Size Unlimited
Maximum Table Size 32 TB
Maximum Row Size 1.6 TB
Max...
What are the differences between the different saving methods in Hibernate?
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So in case of detached object, merge will trigger a select whereas update will not ?
– Gab
Mar 17 '14 at 15:44
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Why is Hibernate Open Session in View considered a bad practice?
...e offers @BatchSize for fetching associations in batches, and FetchMode.SUBSELECT to cope with this scenario, the annotations are affecting the default fetch plan, so they get applied to every business use case. For this reason, a data access layer query is much more suitable because it can be tailo...
What is the difference between Xamarin.Form's LayoutOptions, especially Fill and Expand?
...zontal and vertical options for the Entry and changed the text to show the selected options, so you can see how the Entry moves and resizes.
Here is the code used for Start:
<Label Text="Vert: Start, Horz: Start" VerticalOptions="Start" HorizontalOptions="Start" BackgroundColor="White"/>
And...
How to reference style attributes from a drawable?
I want to have 2 selectable themes for my application. In order to do that, I defined some attributes, like this:
5 Answers...