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Cannot change column used in a foreign key constraint
...eign key field and reference must be equal.
This means your foreign key disallows changing the type of your field.
One solution would be this:
LOCK TABLES
favorite_food WRITE,
person WRITE;
ALTER TABLE favorite_food
DROP FOREIGN KEY fk_fav_food_person_id,
MODIFY person_id SMALLIN...
How to send a JSON object using html form data
...l form data then you have to decode it using json_decode. You'll then get all data in an array.
$.ajax({
type: "POST",
url: "serverUrl",
data: formData,
success: function(){},
dataType: "json",
contentType : "application/json"
});
...
How can I recover a removed file in Mercurial (if at all)?
Accidentally, by using a GUI as opposed to CLI, I removed every file in a Mercurial project.
9 Answers
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Grouped LIMIT in PostgreSQL: show the first N rows for each group?
... For those who works with like millions rows and seeks for really performant way to do this - poshest's answer is the way to go. Just dont forget to spice ti up with proper indexing.
– Diligent Key Presser
Jun 20 '19 at 8:46
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The provided URI scheme 'https' is invalid; expected 'http'. Parameter name: via
... @kaiyaq - I can still connect to the service fine for development with all the standard stuff, letting VS create the classes for me, which then get compiled into the DLL. It's just at runtime I can't upload the config file with all the connection information.
– eidylon
...
How to convert string to Title Case in Python?
...iends from the UK".title()
"They'Re Bill'S Friends From The Uk"
If you really wanted PascalCase you can use this:
>>> ''.join(x for x in 'make IT pascal CaSe'.title() if not x.isspace())
'MakeItPascalCase'
share...
NumPy: function for simultaneous max() and min()
...he same for the min value. If I want to find both max and min, I have to call both functions, which requires passing over the (very big) array twice, which seems slow.
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How can I get column names from a table in SQL Server?
I want to query the name of all columns of a table. I found how to do this in:
20 Answers
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How to line-break from css, without using ?
...ng spans that you will then display as blocks (just like a <div> actually).
p span {
display: block;
}
<p><span>hello</span><span>How are you</span></p>
share
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css transform, jagged edges in chrome
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Lifesaver - this trick has allowed us to re-enable -webkit-transform on a number of sites that previously we were forced to turn transforms off because of anti-aliasing issues. Thanks!
– Darren
Nov 11 '11 at 11:47...