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Difference between Key, Primary Key, Unique Key and Index in MySQL
When should I use KEY , PRIMARY KEY , UNIQUE KEY and INDEX ?
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List all indexes on ElasticSearch server?
I would like to list all indexes present on an ElasticSearch server. I tried this:
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How do I calculate tables size in Oracle
...lls you how much space is allocated for each table taking into account the indexes and any LOBs on the table. Often you are interested to know "How much spaces the the Purchase Order table take, including any indexes" rather than just the table itself. You can always delve into the details. Note ...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
I have some code and when it executes, it throws a IndexOutOfRangeException , saying,
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Is it a good idea to index datetime field in mysql?
...ost of my queries use datetime clause to select data. Is it a good idea to index datetime fields in mysql database?
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How to create materialized views in SQL Server?
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They're called indexed views in SQL Server - read these white papers for more background:
Creating an Indexed View
Improving Performance with SQL Server 2008 Indexed Views
Basically, all you need to do is:
create a regular view
crea...
Get an element by index in jQuery
I have an unordered list and the index of an li tag in that list. I have to get the li element by using that index and change its background color. Is this possible without looping the entire list? I mean, is there any method that could achieve this functionality?
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What's the Best Way to Shuffle an NSMutableArray?
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You don't need the swapObjectAtIndex method. exchangeObjectAtIndex:withObjectAtIndex: already exists.
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How do I check in JavaScript if a value exists at a certain array index?
Will this work for testing whether a value at position index exists or not, or is there a better way:
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How do I access an access array item by index in handlebars?
I am trying to specify the index of an item in an array within a handlebars template:
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