大约有 212 项符合查询结果（耗时：0.0126秒） [XML]
Difference between __str__ and __repr__?
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This is true because for obj = uuid.uuid1(), obj.__str__() is "2d7fc7f0-7706-11e9-94ae-0242ac110002" and obj.__repr__() is "UUID('2d7fc7f0-7706-11e9-94ae-0242ac110002')". Developers need (value + origin) whereas customers need a value and they don't care h...
Create a unique number with javascript time
...presentation, not sure though, but i can see the problem, if you call your uuid generator often enough, only last 3 chars are changing so the chances are high that you will get into a collision. You get much better odds if you just stick to new Date.getTime() calls. But hey if it worked for your pur...
Check if value exists in Postgres array
... value exists or not is as simple as using IN or NOT IN.
e.g.
id => uuid
exception_list_ids => uuid[]
select * from table where id NOT IN (select unnest(exception_list_ids) from table2)
share
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How can I remove specific rules from iptables?
...d temporary rule with some comment:
comment=$(cat /proc/sys/kernel/random/uuid | sed 's/\-//g')
iptables -A ..... -m comment --comment "${comment}" -j REQUIRED_ACTION
2. When the rule added and you wish to remove it (or everything with this comment), do:
iptables-save | grep -v "${comment}" | ip...
Is a GUID unique 100% of the time?
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Wouldn't they be called a UUID, then? ;)
– Arafangion
May 8 '09 at 6:23
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Check if application is on its first run [duplicate]
....io.IOException;
import java.io.RandomAccessFile;
import java.util.UUID;
import android.content.Context;
public class Util {
// ===========================================================
//
// ===========================================================
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What does it mean: The serializable class does not declare a static final serialVersionUID field? [d
...have a host of things to worry about all centered around the proper use of UUID. Basically, the UUID is a way to "version" an object you would serialize so that whatever process is de-serializing knows that it's de-serializing properly. I would look at Ensure proper version control for serialized ob...
How to resize a VirtualBox vmdk file
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The UUIDs mismatch after doing this (and replacing the original drive). VirtualBox 5.1.12 won't update the UUID automatically. I had to remove the hard drive from the list of known hard drives (File -> Virtual Media Manager) a...
How should I store GUID in MySQL tables?
... For the curious, these functions are superior to just UNHEX(REPLACE(UUID(),'-','')) because it arranges the bits in an order that will perform better in a clustered index.
– Slashterix
Feb 2 '14 at 1:28
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How to change Vagrant 'default' machine name?
... change when you restart. (3) The project is mapped to a VirtualBox VM via UUID, which is stored in PROJECT_ROOT/.vagrant/machines/default/virtualbox/id. This UUID is not visible in the VirtualBox GUI (virtualbox.org/ticket/6989), but you can use VBoxManage list vms on the command line.
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