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How to order by with union in SQL?
... < 15
Union
Select id,name,age
From Student
Where Name like "%a%"
Order by name
the order by is applied to the complete resultset
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Hibernate throws org.hibernate.AnnotationException: No identifier specified for entity: com..domain.
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Using a wrapper type is a better choice when using Hibernate because, by checking if the id is null or not, Hibernate can better determine if an entity is transient (it does not have an associated table row) or detached (it has an associated table row, but it's not managed by the current Persis...
What is the error “Every derived table must have its own alias” in MySQL?
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@ToBe I'm curious what you meant by that? The answer holds true in any query, that if you have a derived table in your from clause you need to give it an alias.
– AdamMc331
May 4 '15 at 13:11
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Getting the thread ID from a thread
...proach to identify threads as the ManagedThreadId property id's get reused by your app. So it is not a reliable identifier for threads in some scenarios and you will experience the exception : "An item with the same key has already been added." at line... Give the thread a unique name when you creat...
How to get the instance id from within an ec2 instance?
...me up with: At the end of the line ($), find one or more digits following by one or more lowercase letters. Substitute with the digits only. (Backslash + parentheses tell sed to remember a substring, which is recalled with \1.) I found this a little easier to read--the only backslashes are those r...
Difference between id and name attributes in HTML
...t be processed at all according to the HTML spec)
– ebyrob
May 9 '19 at 17:47
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How do I select an element in jQuery by using a variable for the ID?
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Doing $('body').find(); is not necessary when looking up by ID; there is no performance gain.
Please also note that having an ID that starts with a number is not valid HTML:
ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, di...
Rails migration for has_and_belongs_to_many join table
...ny table must match this format. I'm assuming the two models to be joined by has_and_belongs_to_many are already in the DB : apples and oranges:
create_table :apples_oranges, :id => false do |t|
t.references :apple, :null => false
t.references :orange, :null => false
end
# Adding the...
javascript find and remove object in array based on key value
... id, but how can I delete the entire object where id == 88
Simply filter by the opposite predicate:
var data = $.grep(data, function(e){
return e.id != id;
});
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How to use JavaScript variables in jQuery selectors?
...put type="button" name="bx" value="1" />
<input type="text" id="by" />
<input type="button" name="by" value="2" />
String Concatenation
If you need IE/EDGE support use
$("#" + $(this).attr("name")).hide();
(function($) {
$("input[type=bu...