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What is HEAD in Git?
...out a commit that doesn't have a label , it's in detached HEAD state. That means HEAD is pointing to a commit that doesn't have a branch label. If you checkout 34ac2 in above example, now HEAD would be pointing to that commit and it's called a detached HEAD. In this state, you can make changes, expe...
Finding duplicate values in MySQL
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What would it mean if it said ERROR: column "c" does not exist LINE 1?
– User
Oct 4 '15 at 17:36
16
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Another Repeated column in mapping for entity error
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The message is clear: you have a repeated column in the mapping. That means you mapped the same database column twice. And indeed, you have:
@Column(nullable=false)
private Long customerId;
and also:
@ManyToOne(optional=false)
@JoinColumn(name="customerId",referencedColumnName="id_customer"...
Nullable Foreign Key bad practice?
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Only if you know better than Chris Date "what first normal form really means". If x and y are both nullable, and indeed in some row x and y are both null, then WHERE x=y does not yield true. This proves beyond reasonable doubt that null is not a value (because any real value is always equal to...
What is the meaning and difference between subject, user and principal?
...of precision. But in human language we need nuance and precision to convey meaning efficiently.
– T.Rob
Feb 17 '11 at 13:14
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Acronyms in CamelCase [closed]
...: IN is inch(es)). Or, IDById(id) vs IdById(id), context science (hint: ID means infectious desease). "Two characters long" - what in which context?
– Frederik Krautwald
May 28 '15 at 23:14
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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
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So what if some are only changed? Does that mean I still have to remove them and add them again?
– jaffa
Apr 4 '11 at 17:10
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Set the selected index of a Dropdown using jQuery
...nds-with] is way slower, thats what the "assign a class to the element" is meaning
– gnarf
Aug 1 '14 at 1:52
How about...
What does principal end of an association means in 1:1 relationship in Entity framework
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Does that mean that Foo is the principal then?
– bflemi3
Nov 17 '13 at 19:04
8
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What does cherry-picking a commit with Git mean?
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Cherry picking in Git means to choose a commit from one branch and apply it onto another.
This is in contrast with other ways such as merge and rebase which normally apply many commits onto another branch.
Make sure you are on the branch you w...