Conditional Debit from Credits using SQL

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I have one table cryptotransactionledger in below structure where transactions are stored. enter image description here

TRANSACTION_TYPEID is foreign_key from TRANSACTIONTYPE table (master table).

How can I write a query to implement below rules

  1. bitcoin-transferred should only be deducted from bitcoin-mined
  2. bitcoin-lost can be deducted from either bitcoin-received or bitcoin-mined in FIFO manner

Below is the expected result and DB fiddle to above table

transaction_name Remaining Amount
bitcoin-received 0
bitcoin-mined 10

Logic for remaining balance: bitcoin-received = transaction_typeid 101 - 104 (i.e. 5 - 10. Since bitcoin-received amount is just 5, only 5 coins out of 10 bitcoin-lost will be deduced from here. Remaining 5 will be deducted from bitcoin-mined in FIFO manner)

bitcoin-mined = transaction_typeid 102-103-104 (i.e. 20 - 5 - 5(balance after deduction from bitcoin-received (above line)))

http://sqlfiddle.com/#!4/0fd02/1

Thanks in advance



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