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How to move columns in a MySQL table?
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If empName is a VARCHAR(50) column:
ALTER TABLE Employees MODIFY COLUMN empName VARCHAR(50) AFTER department;
EDIT
Per the comments, you can also do this:
ALTER TABLE Employees CHANGE COLUMN empName empName VARCHAR(50) A...
How do you get the footer to stay at the bottom of a Web page?
...et the footer to stay at the bottom of the page in all browsers. It works if the content pushes the footer down, but that's not always the case.
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Linux command to list all available commands and aliases
...it can be more efficient to pass the string as argument to compgen itself (if it's known to be a prefix, as implied in the question). In this case, that would be compgen -ac searchstr.
– Toby Speight
Jul 20 '17 at 9:01
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Rails auto-assigning id that already exists
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@Websitescenes, if one has a SERIAL column in PostgreSQL (a serial column is one in which the default value is the next value in a sequence), then populates the table with hard values in that column, the sequence will not be automatically up...
UIPanGestureRecognizer - Only vertical or horizontal
...omeView];
return fabs(velocity.y) > fabs(velocity.x);
}
And for Swift:
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIPanGestureRecognizer) -> Bool {
let velocity = gestureRecognizer.velocity(in: someView)
return abs(velocity.x) > abs(velocity.y)
}
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Why don't self-closing script elements work?
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XHTML 1 specification says:
С.3. Element Minimization and Empty Element Content
Given an empty instance of an element whose content model is not EMPTY (for example, an empty title or paragraph) do not use the minimized form (e.g. u...
How can I send mail from an iPhone application
...ct:@"My Subject"];
[controller setMessageBody:@"Hello there." isHTML:NO];
if (controller) [self presentModalViewController:controller animated:YES];
[controller release];
Then the user does the work and you get the delegate callback in time:
- (void)mailComposeController:(MFMailComposeViewContro...
jquery .html() vs .append()
...does a bunch of cross-browser checks and various other optimisations. E.g. if you pass just <div></div> to jQuery(), jQuery will take a shortcut and simply do document.createElement('div').
EDIT: To see the sheer quantity of checks that jQuery performs, have a look here, here and here.
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NodeJS: Saving a base64-encoded image to disk
... But the file isn't a valid image file, and the "file" utility simply identifies it as "data".
9 Answers
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Hibernate problem - “Use of @OneToMany or @ManyToMany targeting an unmapped class”
...y. The former makes the entity detectable. The latter is just an addition.
if you are manually listing your entities (in persistence.xml, in hibernate.cfg.xml, or when configuring your session factory), then make sure you have also listed the ScopeTopic entity
make sure you don't have multiple Scope...