Hi,
I'd suggest this as solution:
select top 50 percent * into tempTable from YourTable1
union
select top 50 percent * from YourTable2
select * from tempTable
Best regards,
Raisor
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Question
SQL Question - Splitting populations
I have 2 separate populations in which I need to split each population randomly (50-50) and take the 50% from each population and combine them into a temp table.
Example:
Population A:
1000 people
Population B:
2000 people
Need to spilt Population A 50-50(randomly) and take 50%(500 people) and insert them in Temp Table C. Then take 50% from Population B(again this would be randomly split at 50-50) and insert that into Temp Table C as well. So Temp Table C would have a total population of 1500...
Any ideas on this?
Fiqbal
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by: ccarnsPosted on 2004-11-04 at 13:56:51ID: 12498770
Here is the start to your solution, this is not really random - but randomness depends on how the data was entered in the first place:
DECLARE @TABLE_A_COUNT int
DECLARE @TABLE_B_COUNT int
SET @TABLE_A_COUNT = COUNT(*)/2 FROM TABLE_A
SET @TABLE_B_COUNT = COUNT(*)/2 FROM TABLE_B
SELECT TOP @TABLE_A_COUNT Field1 FROM TABLE_A
UNION
SELECT TOP @TABLE_B_COUNT Field1 FROM TABLE_A