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小心！创业者不可不知的互联网家装惊天伪命题 - 资讯 - 清泛网 - 专注C/C++...
...便是互联网家装的出现。经过一年的发展，我们发现，在50000亿的巨大的市场规模中，互联网家装当前的占比显然并不是决定整个家装市场的走向主要力量，传统家装依然在发挥着举足轻重的作用。而对于原本就在家装市场中占...
For loop example in MySQL
... declare x INT default 0;
SET x = 1;
WHILE x <= 5 DO
SET str = CONCAT(str,x,',');
SET x = x + 1;
END WHILE;
select str;
END//
Which prints:
mysql> call while_example();
+------------+
| str |
+------------+
| 1,2,3,4,5, |
+------------+
REPEAT loop syntax example ...
SQL Joins Vs SQL Subqueries (Performance)?
...mijoin Transformations
Rewriting Subqueries as Joins
I have a table with 50000 elements, the result i was looking for was 739 elements.
My query at first was this:
SELECT p.id,
p.fixedId,
p.azienda_id,
p.categoria_id,
p.linea,
p.tipo,
p.nome
FROM prodotto p
WHERE p.azien...
Can I “multiply” a string (in C#)?
...
In .NET 4 you can do this:
String.Concat(Enumerable.Repeat("Hello", 4))
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Generating a random & unique 8 character string using MySQL
...umber plate
SELECT @lid:=LAST_INSERT_ID();
UPDATE vehicles SET numberplate=concat(
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@lid)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substr...
How to combine paths in Java?
...oes have a class FilenameUtils that can do this kind of thing, such as the concat() method.
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Importance of varchar length in MySQL table
...ses much angst and gnashing of teeth when some clown has just done varchar(50000) just in case someone has a really large last name :-)
– paxdiablo
Dec 26 '09 at 1:03
21
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Prevent user from seeing previously visited secured page after logout
...ted after both sendRedirect(...) and forward().
– Hal50000
Jul 31 '14 at 18:42
...
What does a space mean in a CSS selector? i.e. What is the difference between .classA.classB and .cl
... Showing the failed case is helpful.
– Hal50000
Oct 23 '16 at 15:44
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How to use a servlet filter in Java to change an incoming servlet request url?
...h.
Use straightforward java.lang.String methods like substring(), split(), concat() and so on to extract the part of interest and compose the new path.
Use either ServletRequest#getRequestDispatcher() and then RequestDispatcher#forward() to forward the request/response to the new URL (server-side re...