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psql: FATAL: role “postgres” does not exist
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NOTE: If you installed postgres using homebrew, see the comment from @user3402754 below.
Note that the error message does NOT talk about a missing database, it talks about a missing role. Later in the login process it might also stumb...
Smarty中date_format日期格式化详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...十进制秒数
%t - 制表符
%T - 当前时间，和 %H:%M:%S 一样
%u - 星期几的十进制数表达 [1,7]，1 表示星期一
%U - 本年的第几周，从第一周的第一个星期天作为第一天开始
%V - 本年第几周的 ISO 8601:1988 格式，范围从 01 到 53，第 1 周是...
GitHub: Permission denied (publickey). fatal: The remote end hung up unexpectedly
I have followed these instructions below to upload a project.
23 Answers
23
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Sending data back to the Main Activity in Android
I have two activities: main activity and child activity.
When I press a button in the main activity, the child activity is launched.
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What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
Please help me understand where to use a regular JOIN and where a JOIN FETCH.
5 Answers
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Git push results in “Authentication Failed”
I have been using Github for a little while and I have been fine with git add , git commit , and git push so far with no problems. Suddenly I am having an error that says:
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Eclipse copy/paste entire line keyboard shortcut
Anyone know the keyboard shortcut to copy/paste a line into a new line in Eclipse , without having to highlight the entire line?
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How to check the differences between local and github before the pull [duplicate]
Before using pull, I want to check if there are any differences between my local and github master.
3 Answers
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Get list of databases from SQL Server
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Execute:
SELECT name FROM master.sys.databases
This the preferred approach now, rather than dbo.sysdatabases, which has been deprecated for some time.
Execute this query:
SELECT name FROM master.dbo.sysdatabases
or if y...
What does “S3 methods” mean in R?
...am fairly new to R, I do not know what the S3 methods and objects are. I found that there are S3 and S4 object systems, and some recommend to use S3 over S4 if possible (See Google's R Style Guide at http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html )*. However, I do not know th...