大约有 49,000 项符合查询结果(耗时:0.0638秒) [XML]
find filenames NOT ending in specific extensions on Unix?
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edited Jun 12 '12 at 16:37
T Zengerink
3,89555 gold badges2626 silver badges3131 bronze badges
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See “real” commit date in github (hour/day)
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edited Jan 3 '19 at 18:15
goncalopp
17.7k88 gold badges5151 silver badges7777 bronze badges
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Understanding the map function
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451
map isn't particularly pythonic. I would recommend using list comprehensions instead:
map(f, it...
val() vs. text() for textarea
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148
The best way to set/get the value of a textarea is the .val(), .value method.
.text() interna...
Connection timeout for SQL server
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213
Yes, you could append ;Connection Timeout=30 to your connection string and specify the value yo...
How can I iterate through the unicode codepoints of a Java String?
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144
Yes, Java uses a UTF-16-esque encoding for internal representations of Strings, and, yes, it e...
Postgresql: Conditionally unique constraint
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190
PostgreSQL doesn't define a partial (i.e. conditional) UNIQUE constraint - however, you can cr...
How to get the top 10 values in postgresql?
...For this you can use limit
select *
from scores
order by score desc
limit 10
If performance is important (when is it not ;-) look for an index on score.
Starting with version 8.4, you can also use the standard (SQL:2008) fetch first
select *
from scores
order by score desc
fetch first 10 rows...
Differences in auto-unboxing between Java 6 vs Java 7
...reference type can be cast to a primitive type by unboxing conversion (§5.1.8).
The Java 7 JLS also contains a table (table 5.1) of allowed conversions (this table is not included in the Java 5/6 JLS) from reference types to primitives. This explicitly lists casts from Object to primitives as a n...
How to check if a database exists in SQL Server?
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165
From a Microsoft's script:
DECLARE @dbname nvarchar(128)
SET @dbname = N'Senna'
IF (EXISTS (...
