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How does Amazon RDS backup/snapshot actually work?
...
We also run several RDS instances, in addition to MySQL on some machines that we manage ourselves. I can't comment specifically, as I'm not an Amazon engineer, but several things I've learned that might explain what you're seeing:
Although Amazon does not share the backend...
How should you build your database from source control?
.../setup_db.sql
proj/sql/dummy_data.sql
proj/sql/mssql_specific.sql
proj/sql/mysql_specific.sql
And then I abstract out all my SQL queries so that I can build the entire project for MySQL, Oracle, MSSQL or anything else.
Build and test automation uses these build-scripts as they are as important as...
How does Java Garbage Collection work with Circular References?
... if they aren't reachable through a chain starting at a garbage collection root, so these objects will be collected. Even though objects may point to each other to form a cycle, they're still garbage if they're cut off from the root.
See the section on unreachable objects in Appendix A: The Truth ...
Trusting all certificates using HttpClient over HTTPS
...n/OU=(c)
2006 thawte, Inc. - For authorized use only/CN=thawte Primary Root CA
As you can see, our root certificate is from Thawte. Go to your provider's website and find the corresponding certificate. For us, it was here, and you can see that the one we needed was the one Copyright 2006.
I...
SQL statement to select all rows from previous day
...microsoft.com/en-us/library/ms189794.aspx) the question you link to is for MySql, which I guess works differently as you have found. You will find that SQL is not completely interchangeable, there are many differences like this between different vendors, especially regarding date handling.
...
Abort makefile if variable not set
...an be missed
# in case a file named like `check-defined-...` exists in the root
# directory, e.g. left by an accidental `make -t` invocation.
.PHONY : __check_defined_FORCE
__check_defined_FORCE :
Usage:
foo :|check-defined-BAR
Notice that the check-defined-BAR is listed as the order-only (...
Linux环境离线安装docker&docker-compose - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
.../daemon.json
# 在文件中添加一下内容：
{
"data-root": "/data/app/dockerWork",
"insecure-registries": ["ss.suwell.com"],
"registry-mirrors": ["https://geuj9lut.mirror.aliyuncs.com"]
}
备注：可能会存在直接复制粘贴后的json文件不可用的情况...
How to check permissions of a specific directory?
...tfacl, stat.
For Dir
[flying@lempstacker ~]$ ls -ldh /tmp
drwxrwxrwt. 23 root root 4.0K Nov 8 15:41 /tmp
[flying@lempstacker ~]$ namei -l /tmp
f: /tmp
dr-xr-xr-x root root /
drwxrwxrwt root root tmp
[flying@lempstacker ~]$ getfacl /tmp
getfacl: Removing leading '/' from absolute path names
# file...
Best XML Parser for PHP [duplicate]
... parsed document takes the form of a PHP object. So you can "query" like $root->myElement.
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Batch file to delete files older than N days
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I used this syntax on Win Server 2008: forfiles /P "C:\Mysql_backup" /S /M *.sql /D -30 /C "cmd /c del @PATH"
– jman
Apr 18 '11 at 8:42
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