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MySQL Creating tables with Foreign Keys giving errno: 150
I am trying to create a table in MySQL with two foreign keys, which reference the primary keys in 2 other tables, but I am getting an errno: 150 error and it will not create the table.
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How to get an array of specific “key” in multidimensional array without looping
...e this:
$ids = array_map(function ($ar) {return $ar['id'];}, $users);
Before(Technically php 4.0.6+), you must create an anonymous function with create_function instead:
$ids = array_map(create_function('$ar', 'return $ar["id"];'), $users);
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Code First: Independent associations vs. Foreign key associations?
...ning my POCOs. I have seen many tutorials/code samples that seem to favor foreign key associations :
4 Answers
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How to return a file using Web API?
...answered Jun 20 '12 at 18:20
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disable textbox using jquery?
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any mercy for older browsers ?
– sarepta
Jun 25 '14 at 6:38
6
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EntityType has no key defined error
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And in case you are using it as a model in MVC, don't forget to rebuild!
– RoJaIt
Aug 2 '18 at 12:27
1
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@UniqueConstraint annotation in Java
...Column(unique=true)
String username;
The @UniqueConstraint annotation is for annotating multiple unique keys at the table level, which is why you get an error when applying it to a field.
References (JPA TopLink):
@UniqueConstraint
@Column
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Swift how to sort array of custom objects by property value
... called CheckInAndOut. And in a separate file, I've declared a typed array for objects of this type and when I try to sort it, I get a Could not find member error. Any idea why this is?
– Isuru
Sep 28 '14 at 16:34
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MySQL join with where clause
...the categories that this particular user has subscribed to will have any information in the user_category_subscriptions columns. Of course, all other categories will be populated with null in the user_category_subscriptions columns.
Conversely, a where clause does the join, and then reduces the row...
ASP.NET MVC Html.DropDownList SelectedValue
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+1 for "the DropDown must not have the same name has the ViewData name" Big Thanks
– Daniel Dyson
Aug 18 '10 at 14:18
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