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Best practices for SQL varchar column length [closed]
...hen you need to worry about it and make them smaller. But if you only ever select 1 row from that table, then you can just make them all 255 and it won't matter.
See: What are the optimum varchar sizes for MySQL?
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Add a space (“ ”) after an element using :after
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That's not a problem. Simply add user-select:none; to the definition of the pseudo-element. That should work in all browsers except for a few Android ones that are quirky in this respect.
– user2581182
Aug 21 at 10:21
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...o change the Screen.Sizing property, on the Designer screen with Screen1 selected in Components, go to Properties on the right-hand side of the App Inventor. You will find a box below “Sizing” that usually defaults to Fixed, located about 2/3 down. This property is set project-wide.
When si...
Why invoke Thread.currentThread.interrupt() in a catch InterruptException block?
...eceive a
ClosedByInterruptException.
If this thread is blocked in a Selector then the thread's interrupt
status will be set and it will return immediately from the selection
operation.
If none of the previous conditions hold then this thread's interrupt
status will be set.
So, if...
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...
Why is it bad style to `rescue Exception => e` in Ruby?
...IFT-ESC), go to the "processes" tab, find your process, right click it and select "End process".
If you are working with someone else's program which is, for whatever reason, peppered with these ignore-exception blocks, then putting this at the top of the mainline is one possible cop-out:
%W/INT Q...
How to limit UITableView row reordering to a section
...w within a section. e.g last row in a Section
// Check if we have selected the last row in section
if (sourceIndexPath.row < sourceIndexPath.length) {
return proposedDestinationIndexPath;
}
else {
return sourceIndexPath;
}
}
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How do I get logs/details of ansible-playbook module executions?
...separate from specifying a log file. It's even separate from the verbosity selection! This is still very good to call out - debug will give you developer-oriented debug messages, on absolutely extreme verbosity level. Good to have around.
– AlanSE
Aug 10 '18 at...
Where is the “Fold” LINQ Extension Method?
...is in part a consequence of picking a stupid name -- though not as bad as "select" for "map" -- and ignoring existing functional technology. As for Aggregate being a more familiar term in the OO realm ... no, not at all.
– Jim Balter
Aug 23 '13 at 23:16
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jQuery change input text value
I can't find the right selector for:
5 Answers
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