大约有 44,200 项符合查询结果（耗时：0.0512秒） [XML]
How to convert Java String into byte[]?
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edited Mar 31 '16 at 21:54
answered Sep 2 '13 at 10:46
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How do I get user IP address in django?
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edited May 23 '17 at 10:31
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answered Jan 3 '11 at 4:08
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How do I immediately execute an anonymous function in PHP?
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121
For PHP7: see Yasuo Ohgaki's answer: (function() {echo 'Hi';})();
For previous versions: the o...
Can you have if-then-else logic in SQL? [duplicate]
...e1 WHERE project = 1
ELSE IF ((SELECT COUNT(*) FROM table1 WHERE project = 2) > 0)
SELECT product, price FROM table1 WHERE project = 2
ELSE IF ((SELECT COUNT(*) FROM table1 WHERE project = 3) > 0)
SELECT product, price FROM table1 WHERE project = 3
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Select top 10 records for each category
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228
If you are using SQL 2005 you can do something like this...
SELECT rs.Field1,rs.Field2
F...
How do I add multiple arguments to my custom template filter in a django template?
... example, if you want a filter that checks if variable X is in the list [1,2,3,4] you will want a template filter that looks like this:
{% if X|is_in:"1,2,3,4" %}
Now we can create your templatetag like this:
from django.template import Library
register = Library()
def is_in(var, args):
if...
How can I pad a value with leading zeros?
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72 Answers
72
Active
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conditional unique constraint
...Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS INT AS BEGIN
DECLARE @ret INT;
SELECT @ret = COUNT(*) FROM Che...
How can I link to a specific glibc version?
...thing on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11...
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