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@UniqueConstraint and @Column(unique = true) in hibernate annotation
...nce the unique constraint is created am I able to reference the constraint by name in my JPA Repository to query on that?
– jDub9
Jan 9 '18 at 18:48
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How can I remove an SSH key?
...gnome-keyring-manager from ever starting up, which was strangely difficult by finally achieved by removing the program file's execute permission.
Ryan Lue adds another interesting corner case in the comments:
In case this helps anyone: I even tried deleting the id_rsa and id_rsa.pub files altoget...
How to delete from multiple tables in MySQL?
...und this article which showing you how to delete data from multiple tables by using MySQL DELETE JOIN statement with good explanation.
How to find if div with specific id exists in jQuery?
...live('click', function(){
name = $(this).text();
if(document.getElementById(name) == null) {
$("div#chatbar").append("<div class='labels'><div id='" + name + "' style='display:none;'></div>" + name + "</div>");
} else {
alert('this record already exists');
}
}...
Replace input type=file by an image
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Thanks Toby, why is there 'left: -700px;' ? In firefox the file input field is actually floating by the left side of a page...it doesn't stick to the label span ... If I remove 'left: -700px;' it works fine
– lis...
Why do we need a fieldset tag?
...d where the association of the controls and their legend cannot be implied by visual presentation.
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Make a div fill up the remaining width
...% width of their container, there is no need to explicitly set this width. By adding a left/right margin the same as the two side divs, it's own contents is forced to sit between them.
Note that the "middle div" goes after the "right div" in the HTML
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Display open transactions in MySQL
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By using this query you can see all open transactions.
List All:
SHOW FULL PROCESSLIST
if you want to kill a hang transaction copy transaction id and kill transaction by using this command:
KILL <id> // e.g KILL 1...
Compare if two variables reference the same object in python
...ing, small numbers are usually reasonable default values) Python optimizes by preallocating small numbers (-5 to 256) and reuses the same integer object. Thus your example only works for numbers in this range. Try assigning something larger, i.e. 270. For more info look here
– ...
How to set selected value of jquery select2?
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how to set by text rather than val
– Rizwan Patel
Feb 11 '16 at 12:49
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