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Change type of varchar field to integer: “cannot be cast automatically to type integer”
I have a small table and a certain field contains the type " character varying ". I'm trying to change it to " Integer " but it gives an error that casting is not possible.
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Remove multiple keys from Map in efficient way?
...s you want to remove, you can use the keySet method and map.keySet().removeAll(keySet);.
keySet returns a Set view of the keys contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa.
Contrived example:
Map<String, String> map ...
Best approach to remove time part of datetime in SQL Server
...er SQL Server optimiser versions managing CAST to date correctly, but generally it will be a bad idea ...
Edit, Sep 2018, for datetime2
DECLARE @datetime2value datetime2 = '02180912 11:45' --this is deliberately within datetime2, year 0218
DECLARE @datetime2epoch datetime2 = '19000101'
select DAT...
How do I create multiple submit buttons for the same form in Rails?
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so just putting the 'A' automatically create parameter name='commit'?
– Timothy T.
Jun 12 '10 at 6:00
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Hibernate - Batch update returned unexpected row count from update: 0 actual row count: 0 expected:
...y the function which causes the issue. Unfortunately there are several DB calls in the function. I am unable to find the line which causes the issue since hibernate flush the session at the end of the transaction. The below mentioned hibernate error looks like a general error. It doesn't even mentio...
What is the meaning of “this” in Java?
Normally, I use this in constructors only.
21 Answers
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What's the -practical- difference between a Bare and non-Bare repository?
...repositores in Git. I haven't been able to understand quite well (theoretically) about the differences between them, and why I should "push" to a bare repository. Here's the deal:
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Understanding colors on Android (six characters)
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here you find all values : dtp-aus.com/hexadeci.htm and you can get alpha 0-100 by divide the number by 255 and multiple it by 100. hope it helps you
– Niib Fouda
Oct 17 '16 at 10:44
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Angularjs - ng-cloak/ng-show elements blink
..., use the ng-cloak directive and include the following in your CSS:
/*
Allow angular.js to be loaded in body, hiding cloaked elements until
templates compile. The !important is important given that there may be
other selectors that are more specific or come later and might alter display. ...
泰迪熊为什么叫泰迪 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...负鼠配地瓜）。于是塔夫托说，“for possum first, last, and all the time”，这句话没看懂。但是塔夫托因为这句话被政治漫画家绘作一只负鼠，名为 Billy Possum（比利鼠）。
由于罗斯福和泰迪熊的巨大成功，玩具商们看准了这次商机...