Answer / shar

Well The basic idea is:
Same key column values are given to the same node.

Hence
1.(e_id)
node1 node2 node1 node2 node3
1,10 2,10 1,10 2,10 3,20
3,20 4,20 4,20 5,30 6,40
5,30 6,40

2. (dept_no)
node1 node2 node1 node2 node3
1,10 3,20 1,10 3,20 5,30
2,10 4,20 2,10 4,20 6,40
5,30 6,40
(This is where pranay went wrong 6,40 will go to node3
instead of node1.)

Answer / pranay

Consider you r having two nodes node 1 and node and u
selected e_id as hash key then
for two nodes for three nodes
node 1 node 2 node 1 node 2 node 3
1,10 2,10 1,10 2,10 3,20
3,20 4,20 4,20 5,30 6,40
5,30 6,40

if u selected dept_no as hash id then
for two node for three node
node 1 node 2 node1 node2 node3
1,10 3,20 1,10 3,20 5,30
2,10 4,20 2,10 4,20
5,30 6,40 6,40

Answer / pranay

i don't know y some one ticked my ans as wrong, please give me explanation, n correct ans if i'm not correct. don't tick blindly as no.

Harikrishna, ur ans is correct if it is 4 node configuration and dept_no is key column, read the question properly he asked (1) 2 or 3 node and key column as e_id
(2) 2 or 3 node and key column is dept_id

Answer / harikrishna chidrala

Hi Pranay,

Sorry I got confused with your answer thats Y i messed it up

Answer / harikrishna chidrala

If U make Dept_no as Key Then data will be as below:
node 1 node2 node3 node4
1,10 3,20 5,30 6,40
2,10 4,20

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