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Inner join vs Where
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No! The sam>me m> execution plan, look at these two tables:
CREATE TABLE table1 (
id INT,
nam>me m> VARCHAR(20)
);
CREATE TABLE table2 (
id INT,
nam>me m> VARCHAR(20)
);
The execution plan for the query using the inner join:
-- with inne...
Most efficient T-SQL way to pad a varchar on the left to a certain length?
... is simply an inefficient use of SQL, no matter how you do it.
perhaps som>me m>thing like
right('XXXXXXXXXXXX'+ rtrim(@str), @n)
where X is your padding character and @n is the number of characters in the resulting string (assuming you need the padding because you are dealing with a fixed length)....
How to set HTTP header to UTF-8 using PHP which is valid in W3C validator?
... when you set the HTTP header correctly like this, you do not need the <m>me m>ta> tag at all anymore.
– Jon
Nov 25 '10 at 16:55
4
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java.io.Console support in Eclipse IDE
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I assum>me m> you want to be able to use step-through debugging from Eclipse. You can just run the classes externally by setting the built classes in the bin directories on the JRE classpath.
java -cp workspace\p1\bin;workspace\p2\bin ...
How to list all the files in a commit?
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Preferred Way (because it's a plumbing command; m>me m>ant to be programmatic):
$ git diff-tree --no-commit-id --nam>me m>-only -r bd61ad98
index.html
javascript/application.js
javascript/ie6.js
Another Way (less preferred for scripts, because it's a porcelain command; m>me m>ant to b...
How to disable HTML button using JavaScript?
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Since this setting is not an attribute
It is an attribute.
Som>me m> attributes are defined as boolean, which m>me m>ans you can specify their value and leave everything else out. i.e. Instead of disabled="disabled", you include only the bold part. In HTML 4, you should include only the bold par...
Use of #pragma in C
What are som>me m> uses of #pragma in C, with examples?
10 Answers
10
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Properties file in python (similar to Java Properties)
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Since nowhere here it is m>me m>ntioned, let m>me m> add again that this is not the sam>me m>. I cant speak for Java or Py3, and maybe it works for simple key/values. But the syntax for string interpolation is different. This solution provides Python formatting, i...
Why is spawning threads in Java EE container discouraged?
One of the first things I've learned about Java EE developm>me m>nt is that I shouldn't spawn my own threads inside a Java EE container. But when I com>me m> to think about it, I don't know the reason.
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Run a single migration file
...out IRB) which relies on the fact that require returns an array of class nam>me m>s:
script/runner 'require("db/migrate/20090408054532_add_foos.rb").first.constantize.up'
Note that if you do this, it probably won't update the schema_migrations table, but it seems like that's what you want anyway.
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