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QUESTION
I try to write a function to insert some values in column3
in my table based on values inside this table, but I'm not so familiar with writing functions in Postgresql 9.6.
ANSWER
Answered 2020-Jun-05 at 17:10You seem to be actually looking for an update
(that changes values on existing rows) rather than an insert
(that creates new rows).
But bottom line, I would suggest just using a computed column:
QUESTION
Source Code:
...ANSWER
Answered 2018-May-01 at 06:12The code you've mentioned works correctly. The textblock does show the new value "NoHello". But, if you wish to update the the property value NowPlaying after your textblock has been loaded, please implement INotifyPropertyChanged on your class Cons and raise PropertyChanged in the setter of the property NowPlaying.
QUESTION
I am learning LINQ Query and stuck at one place. Suppose I have a strongly typed datatable
like below
ANSWER
Answered 2017-Oct-25 at 19:21First of all the error is because in your ToDictionary
the value you specify is the idUnit
which is an int
and not a List
(for instance writing p => new List { p.idUnit }
would resolve that error)
Then after that for a dictionary output first GroupBy
and then ToDictionary
. Otherwise you will get an exception stating the given key already exists in the dictionary.
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