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T-SQL: Deleting all duplicate rows but keeping one [duplicate]
...lightly different data but I do not care about that. I still need to keep one of these rows however. SELECT DISTINCT won't work because it operates on all columns and I need to suppress duplicates based on the key columns.
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Are GUID collisions possible?
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Basically, no. I think someone went mucking with your database. Depending on the version GUID you're using the value is either unique (for things like version 1 GUIDs), or both unique and unpredictable (for things like version 4 GUIDs). SQL Server's ...
How to check in Javascript if one element is contained within another
How can I check if one DOM element is a child of another DOM element? Are there any built in methods for this? For example, something like:
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Why is “copy and paste” of code dangerous? [closed]
...them all (this also holds for changed requirements).
If you keep logic in one place, it is easier to change when needed (so if you decide that the application needs updating, you only do it in one place).
Have your boss read about the DRY principle (Don't Repeat Yourself).
What you are describing...
Why is the Fibonacci series used in agile planning poker? [closed]
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The Fibonacci series is just one example of an exponential estimation scale. The reason an exponential scale is used comes from Information Theory.
The information that we obtain out of estimation grows much slower than the precision of estimation. In f...
Getters \ setters for dummies
...d first and last will be updated and vice versa.
n = new Name('Claude', 'Monet')
n.first # "Claude"
n.last # "Monet"
n.fullName # "Claude Monet"
n.fullName = "Gustav Klimt"
n.first # "Gustav"
n.last # "Klimt"
share
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How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
... table T.
With your approach the only thing you're getting is to make sure one is called after the other, when this would happen anyway in the DB, because the RDBMS will prevent them from inserting half information from A and half from B at the same time. The result will be the same but only 5 times...
Comparing date ranges
...y easier if you reverse the logic.
Let me give you an example.
I'll post one period of time here, and all the different variations of other periods that overlap in some way.
|-------------------| compare to this one
|---------| contained within
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Wrap long lines in Python [duplicate]
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There are two approaches which are not mentioned above, but both of which solve the problem in a way which complies with PEP 8 and allow you to make better use of your space. They are:
msg = (
'This message is so long, that it requires '
'more than {x} lines.{...
Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...en associated with the session but is not on the same instance of B as the one on A.
What primary key generator are you using?
The reason I ask is this error is related to how you're telling hibernate to ascertain the persistent state of an object (i.e. whether an object is persistent or not). Th...