Answer / sainathraj

synchronous means one after the other.
Asynchronous is whole at a time.

Synchronous processing means processing the transactions(i.e
records) one by one.i mean a transaction is done if and only
if the previous transaction is completed.

Synchronous Update means after processing of transactions
records are stored into the database synchronously.I mean if
one transaction is processed it is immediately updated to
database.

Asynchronous processing means processing the transactions
all at a time.
Asynchronous update means updating the database with all the
records at a time. i.e not one by one

in session method all the transactions are processed and
kept in session.the session is then processed and records
are updated to database one by one.

Answer / praveenkumar lingutla

In synchronous processing the transaction is done by one after another and it depend on previous transaction.

In the Asynchronous processing all the transactions is done
at a time.

synchronous update if the legacy system have 5 records the 4 records are correct one record i.e, the 3rd record is error then the process is as follows 1st 2nd records are done successfully but 3rd record is so stop the process.

In the asynchronous update the process is not stopped directly it it goes to the data base

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