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SQLite in Android How to update a specific row
I've been trying to update a specific row for a while now, and it seems that there are two ways to do this. From what I've read and tried, you can just use the:
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Cast int to varchar
...trying to convert to an incorrect datatype, the syntax that you were using for convert was incorrect. The convert function uses the following where expr is your column or value:
CONVERT(expr,type)
or
CONVERT(expr USING transcoding_name)
Your original query had the syntax backwards.
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SQLAlchemy: cascade delete
...tly -- if a parent element is a deleted, the children persist, with null foreign keys.
9 Answers
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Is it possible to change the textcolor on an Android SearchView?
The SearchView element doesn't have any properties for changing the text color. The default text color is black and doesn't work on our dark background. Is there a way to change the color of the text without resorting to hacks?
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Get spinner selected items text?
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Spinner returns you the integer value for the array. You have to retrieve the string value based of the index.
Spinner MySpinner = (Spinner)findViewById(R.id.spinner);
Integer indexValue = MySpinner.getSelectedItemPosition();
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Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...提高若干倍！
性能测试：Using MySQL as a NoSQL – A story for exceeding 750,000 qps
因为HandlerSocket的性能足够好，所以就没有必要使用Memcached了，能节省大量的硬件资源，相当低碳！而且HandlerSocket操作的是MySQL放在内存中的索引，没有...
Preventing Laravel adding multiple records to a pivot table
...empt of saving a doublet.
You should also take a look at the more straightforward answer from Barryvdh just below.
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Laravel Eloquent: How to get only certain columns from joined tables
...->belongs_to('User')->select(array('id', 'username'));
}
And don't forget to include the column you're joining on.
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Disable button in jQuery
...1, but not in Chrome Version 39.0.2171.95 m. Suspiciously, the fiddle used for this answer does not offer jQuery 1.10.2
– Alex
Dec 28 '14 at 2:40
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What is the easiest way to duplicate an activerecord record?
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To get a copy, use the clone (or dup for rails 3.1+) method:
# rails < 3.1
new_record = old_record.clone
#rails >= 3.1
new_record = old_record.dup
Then you can change whichever fields you want.
ActiveRecord overrides the built-in Object#clone to give ...