All, I don't know how to achieve this: I need to put the cumulative sum in
a field, and create a group as soon as that cumulative sum is over a
breakpoint value (10).
This is an example table:
CREATE TABLE [Test] (TextField, ValueField, CumulativeValue, BreakPoint
DEFAULT 10, GroupName);
insert into [Test] values('A', '2', null, '10');
insert into [Test] values('B', '3', null, '10');
insert into [Test] values('C', '2', null, '10');
insert into [Test] values('D', '4', null, '10');
insert into [Test] values('E', '5', null, '10');
insert into [Test] values('F', '1', null, '10');
insert into [Test] values('G', '1', null, '10');
insert into [Test] values('H', '5', null, '10');
insert into [Test] values('I', '11', null, '10');
insert into [Test] values('J', '8', null, '10');
insert into [Test] values('K', '2', null, '10');
I'd like to end up with a table that looks like this:
TextField ValueField CumulativeValue BreakPoint GroupName
A 2 2 10 1
B 3 5 10 1
C 2 7 10 1
D 4 11 10 1
E 5 5 10 2
F 1 6 10 2
G 1 7 10 2
H 5 12 10 2
I 11 11 10 3
J 8 8 10 4
K 2 2 10 4
I spent hours trying to update the CumulativeValue field untill the
BreakPoint value is crossed, and restarting the cumulative counter, but I
have too little sql knowledge to do this.
Could anyone help me?
thanks
gert
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