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Create two blank lines in Markdown
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edited Mar 21 '19 at 13:43
Peter Mortensen
26.5k21...
Can table columns with a Foreign Key be NULL?
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Yes, you can enforce the constraint only when the value is not NULL. This can be easily tested with the following example:
CREATE DATABASE t;
USE t;
CREATE TABLE parent (id INT NOT NULL,
PRIMARY KEY (id)
) ENGINE=INNODB;
CREATE TABLE child (id INT NULL,
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How to configure heroku application DNS to Godaddy Domain?
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I used this videocast to set up my GoDaddy domain with Heroku, and it worked perfectly. Very clear and well explained.
Note: Skip the part about CNAME yourdomain.com. (note the .) and the heroku addons:add "custom domains"
http://bl...
Is it possible to have empty RequestParam values use the defaultValue?
...ld change the @RequestParam type to an Integer and make it not required. This would allow your request to succeed, but it would then be null. You could explicitly set it to your default value in the controller method:
@RequestMapping(value = "/test", method = RequestMethod.POST)
@ResponseBody
publi...
Can I prevent text in a div block from overflowing?
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answered Sep 24 '10 at 21:16
AmalgovinusAmalgovinus
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How do I find a stored procedure containing ?
...OM SYSCOMMENTS
WHERE [text] LIKE '%Foo%'
AND OBJECTPROPERTY(id, 'IsProcedure') = 1
GROUP BY OBJECT_NAME(id)
SELECT OBJECT_NAME(object_id)
FROM sys.sql_modules
WHERE OBJECTPROPERTY(object_id, 'IsProcedure') = 1
AND definition LIKE '%Foo%'
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Get an object's class name at runtime
Is it possible to get an object's class/type name at runtime using TypeScript?
10 Answers
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How do I interpret precision and scale of a number in a database?
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Numeric precision refers to the maximum number of digits that are present in the number.
ie 1234567.89 has a precision of 9
Numeric scale refers to the maximum number of decimal places
ie 123456.789 has a scale of 3
Thus the maximum...
How do I migrate an SVN repository with history to a new Git repository?
...d the Git manual, FAQ, Git - SVN crash course, etc. and they all explain this and that, but nowhere can you find a simple instruction like:
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Difference between this and self in self-type annotations?
In various Scala literature I see some self-type annotations using "this" and others using "self":
2 Answers
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