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How to drop unique in MySQL?
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DROP INDEX column_name ON table_name
Select the database and query form the sql tab.This removes the index of the particular column. It worked for me in PHP MyADMIN
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how to check and set max_allowed_packet mysql variable [duplicate]
...ass', 'dbname' );
// to get the max_allowed_packet
$maxp = $db->query( 'SELECT @@global.max_allowed_packet' )->fetch_array();
echo $maxp[ 0 ];
// to set the max_allowed_packet to 500MB
$db->query( 'SET @@global.max_allowed_packet = ' . 500 * 1024 * 1024 );
So if you've got a query you exp...
What is the difference between Ruby 1.8 and Ruby 1.9
...g tASSOC
Ruby 1.8.6
irb(main):001:0> {1,2}
=> {1=>2}
Action: Convert to {1 => 2}
Array.to_s Now Contains Punctuation
Ruby 1.9
irb(main):001:0> [1,2,3].to_s
=> "[1, 2, 3]"
Ruby 1.8.6
irb(main):001:0> [1,2,3].to_s
=> "123"
Action: Use .join instead
Colon No Lo...
What are the differences between Perl, Python, AWK and sed? [closed]
...r and sed-killer. Two of the programs provided with it are a2p and s2p for converting awk scripts and sed scripts into Perl. Perl is one of the earliest of the next generation of scripting languages (Tcl/Tk can probably claim primacy). It has powerful integrated regular expression handling with a va...
How to split a string at the first `/` (slash) and surround part of it in a ``?
...ments, for example to all those implementing a class, just by changing the selector.
Demonstration (note that I had to select jQuery in the menu in the left part of jsfiddle's window)
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Intellij idea subversion checkout error: `Cannot run program “svn”`
...command line client is the right answer here. Note that on windows default selections for installation of TortoisSVN do not include the command line client.
– dbrin
Oct 3 '14 at 20:55
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Insert code into the page context using a content script
...ve();
This method works, because the + operator on strings and a function converts all objects to a string. If you intend on using the code more than once, it's wise to create a function to avoid code repetition. An implementation might look like:
function injectScript(func) {
var actualCode = ...
How to find the array index with a value?
...t",
"subject": "chemistry"
},
];
Now if we have a requirement to select a particular object in the array. Let us assume that we want to find index of student with name Tanmay.
We can do that by iterating through the array and comparing value at the given key.
function functiontofindIndex...
Is it possible to view bytecode of Class file? [duplicate]
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Better still is the fact that it does so while you have the source code selected.
You don't have to find the .class file in the bin directory to inspect it's bytecode.
To edit them
Using code:
ASM: Visitors based, very, very fast.
BCEL: Loads the bytecode as an in memory description of the cl...
Removing path and extension from filename in powershell
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you can use basename property
PS II> ls *.ps1 | select basename
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