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How to check the version of GitLab?
... later
Log in to GitLab
Click on the drop down menu in the upper right. Select Help.
The GitLab version appears at the top of the page
In earlier versions, like GitLab 9
Log in to GitLab
Click on the drop down menu in the upper left. Select Help.
And then the version appears at the top of th...
Update a table using JOIN in SQL Server?
...n table expression) - see here and here for more details:
;WITH t2 AS
(
SELECT [key], CalculatedColumn = SUM(some_column)
FROM dbo.table2
GROUP BY [key]
)
UPDATE t1
SET t1.CalculatedColumn = t2.CalculatedColumn
FROM dbo.table1 AS t1
INNER JOIN t2
ON t1.[key] = t2.[key];
The reas...
那些我印象深刻的建议和教诲 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...负有心人”和“蠢”之间可能连窗户纸都没有，只看个人如何面对了。
多用Google吧
我工作的第一天，项目经理把我叫去说：给你们讲讲JUnit, SVN，Ant, JBuilder的用法，明天开始用。这四样东西我以前都没有接触过，第一反应就是...
What is The Rule of Three?
...ns copying its members:
The implicitly-defined copy constructor for a non-union class X performs a memberwise copy of its subobjects.
[n3126.pdf section 12.8 §16]
The implicitly-defined copy assignment operator for a non-union class X performs memberwise copy assignment
of its subobjects.
[n3126...
Emacs Ruby autocomplete almost working
...e. This works well in most files except I've found it doesn't allow me to select an answer from the table when I'm editing some code in my ruby on rails project.
...
Eclipse secure storage
...indows->preferences->then type "secure storage"
In the Contents tab, select [Default Secure Storage].
Click Delete.
Let Eclipse restart.
share
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improve this answer
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What's the difference between HEAD^ and HEAD~ in Git?
... commit with only one parent, rev~ and rev^ mean the same thing. The caret selector becomes useful with merge commits because each one is the child of two or more parents — and strains language borrowed from biology.
HEAD^ means the first immediate parent of the tip of the current branch. HEAD^ is...
How do I specify the Linq OrderBy argument dynamically?
...rn str + (isDesc ? " descending" : "");
}
}
3) Write your switch for selecting of Lambda function
public static class SortHelper
{
public static Expression<Func<UserApp, object>> UserApp(string orderProperty)
{
orderProperty = orderProperty?.ToLowerInvariant();
...
PostgreSQL “DESCRIBE TABLE”
... 'table' or \ds 'sequence' and so on)
The SQL standard way, as shown here:
select column_name, data_type, character_maximum_length, column_default, is_nullable
from INFORMATION_SCHEMA.COLUMNS where table_name = '<name of table>';
It's supported by many db engines.
...
Heroku Postgres - terminate hung query (idle in transaction)
...'s not desirable or not an option ...)
Find the PID by running this sql:
SELECT pid , query, * from pg_stat_activity
WHERE state != 'idle' ORDER BY xact_start;
(The query may need mending dependent of the version of postgres - eventually, just select * from pg_stat_activity). You'll find the ...