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MAC addresses in JavaScript
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@Michael Wikipedia lists several UUID implementations
– Vincent Robert
Dec 11 '13 at 10:41
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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
... not correct. In latest Postgres this leads also to the message like "Key (uuid)=(3a533772-07ac-4e76-b577-27a3878e2222) is duplicated. Query failed" if you have a value that is not unique...
– Strinder
Dec 3 '15 at 7:39
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When to use CouchDB over MongoDB and vice versa
...pty value is translated to a special prefix (like null:) concatenated to a uuid. This is a real headache, because one has to take care of transforming to/from the empty values when writing/quering/reading. A major nuisance.
I have never used server side jav
Using querySelector with IDs that are numbers
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UUIDs can start by a number.
– Alfonso Nishikawa
Mar 15 '18 at 12:54
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JPA EntityManager: Why use persist() over merge()?
...e was no field that JPA was generating for me--the primary key field was a UUID that I set myself. I switched to em.persist(myEntityObject) and got just INSERT statements then.
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Vsphere 6 集群上 安装 oracle rac 遇到的共享磁盘故障 - 数据库(内核) - ...
...虚拟
修改完成之后，重启启动。其中一台RAC报错。显示磁盘被锁
关闭虚拟机，重新进入的shell 模式添加参数。，并刷新生效。为了测试各参数的效果，分别添加
disk.locking=”fales”
任然只有一台虚拟机可...
How do I migrate an SVN repository with history to a new Git repository?
....com/myrepo/<branchname/trunk>@<RevisionNumber> <Repository UUID>)
If a user name is not found, update your users.txt file then:
cd dest_dir-tmp
git svn fetch
You might have to repeat that last command several times, if you have a large project, until all of the Subversion comm...
Surrogate vs. natural/business keys [closed]
...d to the EOF on disk. If you use less sequential data such as text or GUID(UUID), there will be a lot more disk IO and effort to balance the index, I think that's kind of big difference
– Jin
May 2 '16 at 20:42
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转：postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术
...改为：
然后编译：
[root@mail pam_mysql]# make
然后报错“make: *** [dynamic/pam_mysql.o] Error 1”无法尽心，没有生成pam_mysql.so模块。
A:
装mysql的devel和shared包吧，对应版本的，用mysql.com上面的就行
QUOTE:
Q：
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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...: cannot open shared object file: No such file or directory"。
若postfix报错postfix: fatal: parameter inet_interfaces: no local interface found for ::1
则 vi /etc/postfix/main.cf修改配置：
inet_interfaces = all
install_root: [/]
tempdir: [/root/postfix-2.9.1] /tmp/postfix
config_...