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MySQL Error 1215: Cannot add foreign key constraint
...uessing that Clients.Case_Number and/or Staff.Emp_ID are not exactly the sam>me m> data type as Clients_has_Staff.Clients_Case_Number and Clients_has_Staff.Staff_Emp_ID.
Perhaps the columns in the parent tables are INT UNSIGNED?
They need to be exactly the sam>me m> data type in both tables.
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What is the m>me m>aning of the CascadeType.ALL for a @ManyToOne JPA association
I think I misunderstood the m>me m>aning of cascading in the context of a @ManyToOne relationship.
6 Answers
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How can I discover the “path” of an embedded resource?
I am storing a PNG as an embedded resource in an assembly. From within the sam>me m> assembly I have som>me m> code like this:
5 Ans...
background:none vs background:transparent what is the difference?
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There is no difference between them.
If you don't specify a value for any of the half-dozen properties that background is a shorthand for, then it is set to its default value. none and transparent are the defaults.
One explicitly sets the background-image t...
What is the difference between SqlCommand.CommandTim>me m>out and SqlConnection.ConnectionTim>me m>out?
Is there any difference between SqlCommand.CommandTim>me m>out and SqlConnection.ConnectionTim>me m>out in .NET?
6 Answers
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Why does the C++ map type argum>me m>nt require an empty constructor when using []?
Not a major issue, just annoying as I don't want my class to ever be instantiated without the particular argum>me m>nts.
5 Answe...
BigDecimal - to use new or valueOf
I cam>me m> across two ways of getting BigDecimal object out of a double d.
3 Answers
3
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When should I use require() and when to use define()?
I have being playing around with requirejs for the last few days. I am trying to understand the differences between define and require.
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Android SharedPreference security
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Shared Preferences are stored as a file in the filesystem on the device. They are, by default, stored within the app's data directory with filesystem permissions set that only allow the UID that the specific application runs with to access them. So, they are private in so much as ...
The differences between .build, .create, and .create! and when should they be used?
... people using .build , .create , and .create! within their controllers more and more lately. What's the difference from just using .new and passing the param'd object and then .save ? Are there pros and cons? Does using these other m>me m>thods offer benefits?
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