<div>
Can you clarify the last statement with an example?<br />
<br />

<blockquote>
Briefly, Category 2 (if any records exist with this Category) must fit into interval, not occupied by Category 1
</blockquote>
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<div>
It means that islands of Category 1 are:<br />
1/1 - 1/4 and 1/10 - 1/12<br />
so interval between these 2 islands is 1/5 - 1/9<br />
<br />
if any records from Category 2 exist between 1/5 and 1/9, <br />
then I need to show this interval as one that belongs to Category 2<br />
<br />
would be great if this is doable<br />
Thank you!
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<div>
Haven't we already done that with the answer to your previous question? &nbsp;I must be missing something.
</div>


<div>
no, here is the difference:<br />
<br />
for question 1 the correct result is:<br />
Category &nbsp;DateStart &nbsp;DateEnd<br />
1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1/1/2000 &nbsp; 1/4/2000<br />
2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<b>1/6/2000 &nbsp; 1/8/2000 </b> &nbsp; <br />
1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1/10/2000 &nbsp; 1/12/2000<br />
<br />
for question 2 the correct result is:<br />
Category &nbsp;DateStart &nbsp;DateEnd<br />
1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1/1/2000 &nbsp; 1/4/2000<br />
2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<b>1/5/2000 &nbsp; 1/9/2000 </b> &nbsp; <br />
1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1/10/2000 &nbsp; 1/12/2000
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<div>
<div class="content wysiwyg-content">
Hello,<br />
<br />
I have following data:<br />
ID &nbsp;Date &nbsp;Category<br />
1 &nbsp;1/1/2000 &nbsp;1<br />
2 &nbsp;1/2/2000 &nbsp;1<br />
3 &nbsp;1/4/2000 &nbsp;1<br />
4 &nbsp;1/6/2000 &nbsp;2<br />
5 &nbsp;1/8/2000 &nbsp;2<br />
6 &nbsp;1/10/2000 1<br />
7 &nbsp;1/12/2000 1<br />
<br />
the result should be:<br />
Category &nbsp;DateStart &nbsp;DateEnd<br />
1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1/1/2000 &nbsp; 1/4/2000<br />
2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1/5/2000 &nbsp; 1/9/2000 &nbsp; &nbsp;<br />
1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1/10/2000 &nbsp; 1/12/2000<br />
<br />
Briefly, Category 2 (if any records exist with this Category) must fit into interval, not occupied by Category 1<br />
<br />
Please help<br />
Thank you
</div>
</div>


Hello,

I have following data:
ID  Date  Category
1  1/1/2000  1
2  1/2/2000  1
3  1/4/2000  1
4  1/6/2000  2
5  1/8/2000  2
6  1/10/2000 1
7  1/12/2000 1

the result should be:
Category  DateStart  DateEnd
1                1/1/2000   1/4/2000
2                1/5/2000   1/9/2000    
1                1/10/2000   1/12/2000

Briefly, Category 2 (if any records exist with this Category) must fit into interval, not occupied by Category 1

Please help
Thank you

How to get date ranges of islands of records? 2

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