SQL join QUERY of 2 tables

Question

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SQL-Server-2008

Hi,

I have a table table1.

table1 has one column:ID
data are:
ID
1
2
3
4
5
6
7
8
9
10

Another table is present as Table2

has 2 column: ID,Amt

Data are:

ID Amt
1 10
5 20
7 100

Now i need a result as

ID Amt
1 10
2 10
3 10
4 10
5 20
6 20
7 100

PLease tell me query to achive this

Posted 20-Feb-14 1:45am

praveen.victor

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3 solutions

Solution 1

SQL

select a.id,case when a.id between 1 and 4 then 10 when a.id between  5 and 6 then 20 when a.id between 7 and 10 then 100 end  From table1 as a left join table2 as b on a.id=b.id

Posted 20-Feb-14 1:49am

King Fisher

Updated 20-Feb-14 2:09am

v3

Comments

praveen.victor 20-Feb-14 8:20am

In this Query values are hard coded. need a dynamic query

Solution 2

Join Query :

SQL

SELECT t2.ID, t2.Amt
FROM Table1 t1, Tabele2 t2
WHERE t1.ID = t2.ID

-KR

Posted 20-Feb-14 2:12am

Krunal Rohit

Comments

praveen.victor 20-Feb-14 8:21am

its not satisfying the requirment

Krunal Rohit 20-Feb-14 8:25am

I have seen such cases where "no repeatation" of data is needed. The result you need is simply depends upon the data but query.
Any way, can you tell me why are you doing this ?
-KR

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Bernhard Hiller · Accepted Answer · 2014-02-20T02:21:00

Very strange data and requirement...
With the data shown above, following query works:

SQL

SELECT Table1.ID,  Max(Table2.Amt)
FROM Table1, Table2
where table1.id>=table2.id and table1.id<=7
group by table1.id

[Edit]
The maximum value of table2 need not be hard coded but can be retrieved via a subquery:

SQL

SELECT Table1.ID,  Max(Table2.Amt)
FROM Table1, Table2
where table1.id>=table2.id and table1.id<= (select max(table2.id) from table2)
group by table1.id

[/Edit]