Question : ReOrder Priorirty

Dear Friends,

please first check the related question,
here i got the solution for reorder column int value
but in the solution whenever i execute the query its increment all values

ex
Name Priority
A 1
B 3
C 2
D 4

when i execute the query which is given in the previous solution

say i change the priority of C to 1

then its

Name Priority
A 2
B 4
C 1
D 5

so its increment everytime whenever i exec the query

what i want when i exec the query its update like this

Name Priority
A 2
B 3
C 1
D 4

hope u understand my requirement

thanx

Answer : ReOrder Priorirty

Sorry

                       
         
           
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             declare @name varchar(10)
declare @newpriority int

set  @name = 'C'
set @newpriority = 1


declare @oldpriority int
select @oldpriority = priority from yourtable where name = @name

UPDATE yourtable
   SET Priority = CASE 
            WHEN Name = @Name then @newpriority
            WHEN @newpriority > @oldpriority THEN priority -1
            WHEN @newpriority < @oldpriority THEN priority +1
            ELSE Priority
   END -- end of case
WHERE ( @newpriority > @oldpriority AND priority <= @newpriority AND priority >= @oldpriority )
    OR  ( @newpriority < @oldpriority AND priority >= @newpriority AND priority <= @oldpriority )

           
         

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