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Alter a MySQL column to be AUTO_INCREMENT
... The only thing that may be influenced by the number is the display width, and it is up to the client to do that. But don't be deceived and think that it works like it does for VARCHAR and DECIMAL types - in those cases, the amount of data you can store in there is actually specified, whereas a part...
How to remove a column from an existing table?
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Your example is simple and doesn’t require any additional table changes but generally speaking this is not so trivial.
If this column is referenced by other tables then you need to figure out what to do with other tables/columns. One option is t...
MongoDB inserts float when trying to insert integer
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If the value type is already double, then update the value with $set command can not change the value type double to int when using NumberInt() or NumberLong() function.
So, to Change the value type, it must update the whole record.
var re = db.data.find({"name": "zero"})
re['value']=NumberInt(0)...
How can I select all elements without a given class in jQuery?
... answered Mar 15 '10 at 15:02
Andre BacklundAndre Backlund
6,30533 gold badges1717 silver badges2727 bronze badges
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Lua string to int
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Nope, it'll convert "10" to integer and then add 0 to it. (The lack of clarity is all the more reason to use tonumber instead, though!)
– Rena
Jun 28 '15 at 6:32
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In Java, are enum types inside a class static?
...oring access restrictions)
Bar b1 = new Foo().A
Bar b2 = new Foo().A
b1 and b2 would have to be the same objects.
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How to display PDF file in HTML?
I have an auto generated PDF file by itext and I need to display that PDF file in HTML. My question is: How to display a local PDF file in HTML using pdf.js ? Should that PDF file be generated by some standards?
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Python loop counter in a for loop [duplicate]
...ted to loop counters, but they were either deferred or rejected ( PEP 212 and PEP 281 ).
4 Answers
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How can I copy data from one column to another in the same table?
... This will also work if you want to transfer old value to other column and update the first one: UPDATE table SET columnA = 'new value', columnB = columnA. Like other answer says - don't forget the WHERE clause to update only what's needed.
– Carl di Ortus
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Preserve HTML font-size when iPhone orientation changes from portrait to landscape
...y:
html {
-webkit-text-size-adjust: 100%; /* Prevent font scaling in landscape while allowing user zoom */
}
The use of this property is described further in the Safari Web Content Guide.
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