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What is an index in SQL?
...e file the value is stored.
In MySQL you can use EXPLAIN in front of your SELECT statement to see if your query will make use of any index. This is a good start for troubleshooting performance problems. Read more here:
http://dev.mysql.com/doc/refman/5.0/en/explain.html
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IntelliJ Organize Imports
...ditor -> Auto Import -> Java (left panel) and make the below things:
Select check box for "Add unambigious imports on the fly" and "Optimize imports on the fly"
Refer this.
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Add all files to a commit except a single file?
... very simple script I use (that I call gitadd) to add all changes except a select few that I keep listed in a file called .gittrackignore (very similar to how .gitignore works).
#!/bin/bash
set -e
git add -A
git reset `cat .gittrackignore`
And this is what my current .gittrackignore looks like.
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Check if a value exists in ArrayList
...ed by first opening the source file for your CurrentAccount object and the selecting Source > Generate hashCode() and equals()...
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How do I create multiple submit buttons for the same form in Rails?
...an change the behavior of hte controller,e ven if it user input, which the selection of the button is?
– Timothy T.
Jun 12 '10 at 6:07
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Getting full JS autocompletion under Sublime Text
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I'm surprised you get the selectedIndex attribute, as createTag will return an img HTTP tag. Plus, selectedIndex belongs to a select HTTP tag, NOT to img or its parent element. Would you be so kind of commenting about how do you get those two suggesti...
How to create PDFs in an Android app? [closed]
... @lalitm It is not as it is in ios. Pdf generated in iOS has selectable text written in doc. But in android its a image.
– Kantesh
Nov 27 '14 at 11:28
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Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted
...ode to trawl through to find it, I'm afraid. The simplest instrument is to selectively place calls to memory_get_usage and narrow it down to where the code leaks. You can also use xdebug to create a trace of the code. Run the code with execution traces and show_mem_delta.
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How to display a dynamically allocated array in the Visual Studio debugger?
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For beginners: If you select "a" variable, right click and add to watch list (inspect), if you open de debugger view in the list of watched values (I can't find the name of the window right now), you can double click "a" and rename it "a,X" where ...
How do I stop Notepad++ from showing autocomplete for all words in the file
...erences... > Auto-completion
Check Enable Auto-completion on each input
Select Function completion and not Word completion
Check Function parameter hint on input (if you have this option)
On version 6.5.5 of Notepad++, I have this setting
Some documentation about auto-completion is available ...