Answer / arun

Data concurrency means that many users can access data at
the same time.

Data consistency means that each user sees a consistent
view of data including the transactions made by him as well
as others.

have table with two columns with datatypes as number and varchar and the values in A column like 1,2,3 AND B column values like a,b,c. now need to display data in a single column as 1,a,2,b,3,c.

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