大约有 43,062 项符合查询结果（耗时：0.0401秒） [XML]
Length of an integer in Python
...
341
If you want the length of an integer as in the number of digits in the integer, you can always c...
How to delete duplicate rows in SQL Server?
...e the DELETE FROM CTE... to SELECT * FROM CTE:
WITH CTE AS(
SELECT [col1], [col2], [col3], [col4], [col5], [col6], [col7],
RN = ROW_NUMBER()OVER(PARTITION BY col1 ORDER BY col1)
FROM dbo.Table1
)
DELETE FROM CTE WHERE RN > 1
DEMO (result is different; I assume that it's due to a ...
Efficiently convert rows to columns in sql server
...FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = N'SELECT ' + @cols + N' from
(
select value, ColumnName
from yourtable
) x
pivot
(
max(value)
...
Remove insignificant trailing zeros from a number?
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15 Answers
15
Active
...
How to remove convexity defects in a Sudoku square?
...sk"}][[All,
2]];
largestComponent = Image[SortBy[components, First][[-1, 2]]]
By filling this image, I get a mask for the sudoku grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative filter to find the vertical and horizontal lines in two separate images...
How to calculate “time ago” in Java?
...
179
Take a look at the PrettyTime library.
It's quite simple to use:
import org.ocpsoft.prettyti...
How to get the last day of the month?
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1134
I didn't notice this earlier when I was looking at the documentation for the calendar module,...
How to read the output from git diff?
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Lets take a look at example advanced diff from git history (in commit 1088261f in git.git repository):
diff --git a/builtin-http-fetch.c b/http-fetch.c
similarity index 95%
rename from builtin-http-fetch.c
rename to http-fetch.c
index f3e63d7..e8f44ba 100644
--- a/builtin-http-fetch.c
+++ b/ht...
Convert pandas dataframe to NumPy array
...
15 Answers
15
Active
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