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How do I specify “close existing connections” in sql script
...
I've used this but often wondered if there was a window of opportunity for another user to get in as the "single user" - is that possible? Possible alternative is ALTER DATABASE [MyDatabaseName] SET OFFLINE WITH ROLLBACK IMMEDIATE
– Kri...
import module from string variable
... on a documentation (personal) for nested matplotlib (MPL) library, which differs from MPL own provided, by interested submodule packages. I'm writing Python script which I hope will automate document generation from future MPL releases.
I selected interested submodules/packages and want to list t...
AppInventor2中的二进制数据以什么样的形式传递？字节列表、字节数组是什么...
...p; resetErrorInfo(funcName);
if (!IsConnected()) {
raiseErrorOccured(funcName, new MqttException(Helper.REASON_CODE_INVALID_STATE));
return;
...
What is the quickest way to HTTP GET in Python?
What is the quickest way to HTTP GET in Python if I know the content will be a string? I am searching the documentation for a quick one-liner like:
...
String Resource new line /n not possible?
...ing name="title">Hello\nWorld!</string>
</resources>
Also, if you plan on using the string as HTML, you can use &lt;br /&gt; for a line break(<br />)
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="title">Hello&lt;br /&gt;W...
Is it possible to set the stacking order of pseudo-elements below their parent element? [duplicate]
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However, if you have a normal parent div with a background, the lower element will be hidden. In this case, give the parent relative positioning and a z-index of 1. See: jsbin.com/juputice/3/edit
– Stephen Saucie...
Best practices with STDIN in Ruby?
...sed via command line that contains login
ARGF.each do |line|
puts line if line =~ /login/
end
Thank goodness we didn’t get the diamond operator in Ruby, but we did get ARGF as a replacement. Though obscure, it actually turns out to be useful. Consider this program, which prepends copyright h...
How to push both value and key into PHP array
...ndexname2' => $value2); would set them as the only items in $arrayname. If you already have $arrayname set and want to keep its values, try $arrayname += $anotherarray. Keep in mind any existing keys in the first array would be overwritten by the second.
– Charlie Schliesser...
Spring Data: “delete by” is supported?
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Deprecated answer (Spring Data JPA <=1.6.x):
@Modifying annotation to the rescue. You will need to provide your custom SQL behaviour though.
public interface UserRepository extends JpaRepository<User, Long> {
@Modifying
@Query("delete from User u where u.firs...
Rails 4: List of available datatypes
...maStatements.html#method-i-add_column
These are the same as with Rails 3.
If you use PostgreSQL, you can also take advantage of these:
:hstore
:json
:jsonb
:array
:cidr_address
:ip_address
:mac_address
They are stored as strings if you run your app with a not-PostgreSQL database.
Edit, 2016-Se...