hey,
I have a task where in I have a source table with id, createtime and binary column.
Destination table also has same structure. The task is to update the binary column in destination table based on latest time in source.
id is not primary key. It may repeat and can have multiple records with same Id in both the table.
example
source table
id createtime binary
101 8/9/2018 13:53 0
101 8/9/2018 15:15 1
102 8/9/2018 10:10 1
destination table
id createtime binary
101 8/9/2018 15:10 0
101 8/9/2018 15:17 0
102 8/9/2018 10:15 0
here in destination table id 101 has 2 entries. it should get the difference in id row's createtime and if its less than 10(in this case the lastest row is with time 15:17) should update value of binary in destination table to 1. the time with 15:10 should be set to 0.
How can I do it in sql?? Please help!!