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Rails Migration: Remove constraint
I have a table in a Rails application which (in schema.rb) looks like:
2 Answers
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reformat in vim for a nice column layout
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Works perfectly in a LaTeX Table: :'<,'>Align &
– Thomas
Dec 21 '12 at 13:31
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Cast Int to enum in Java
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@Tarrasch as arrays are mutable, values() must return a copy of the array of elements just in case you happen to change it. Creating this copy each time is relatively expensive.
– Peter Lawrey
Dec 4 '12 at 8:44
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What is the equivalent of “colspan” in an Android TableLayout?
I'm using a TableLayout in Android. Right now I have one TableRow with two items in it, and, below that, a TableRow with one item it it. It renders like this:
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Dashed line border around UIView
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hey i applied this code to label on table view cell but it give small size of border how can i correct this.
– Chaudhary Ankit Deshwal
Jun 6 '16 at 19:28
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Profiling Vim startup time
...ent directory with all required information. To get per-script information table similar to already present per-function one, use (after opening this file in vim):
" Open profile.log file in vim first
let timings=[]
g/^SCRIPT/call add(timings, [getline('.')[len('SCRIPT '):], ...
Calculate difference between two dates (number of days)?
... in DateTime format? Because I need each date to modify a certain field in tables :) Edit: Got it and posted it as answer below. Thanks
– sys_debug
Oct 30 '11 at 4:16
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How do I monitor the computer's CPU, memory, and disk usage in Java?
...GAR API in one of my own applications and it is great. You'll find it is stable, well supported, and full of useful examples. It is open-source with a GPL 2 Apache 2.0 license. Check it out. I have a feeling it will meet your needs.
Using Java and the Sigar API you can get Memory, CPU, Disk, Lo...
Error Code: 2013. Lost connection to MySQL server during query
...tion to MySQL server during query error when I tried to add an index to a table using MySQL Workbench.
I noticed also that it appears whenever I run long query.
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Convert floats to ints in Pandas?
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Thanks! I adjusted this in my to_csv: fin.to_csv('my_table.csv', float_format='%.f'). It worked!
– MJP
Jan 22 '14 at 19:22
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