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The transfer tables contain the amount of every transfer event for all assets (ETH, ERC20, ERC721, and ERC1155) from one address to another.

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Transfers vs Credit Debit

The transfer address will only contain one row for each transfer event, unlike credit debit, which has one row for credit and another for debit.
  • In the credit debit table, you can find the net inflow of an asset simply by summing the amount of USDC to find the change daily and make a cumulative sum.
  • In transfers, you will need to represent the inflows and outflows in two separate common expression tables (CTEs) and join them together.
To get the net inflows of an asset, you will need to account for both inflows and outflows. 
with inflows as (
    select  
    date(block_timestamp) as date, 
    token_name, 
    sum(amount) as daily_inflow,
    sum(daily_inflow) over (order by date) as total_inflow
from ethereum.assets.erc20_token_transfers
where to_address = '0x88e6a0c2ddd26feeb64f039a2c41296fcb3f5640' -- USDC-ETH Uniswap v3 5bp
  and token_address = '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48' -- USDC Token Address
and current_date - date(block_timestamp) < 30
group by date, token_name
order by date desc
),
outflows as (
    select  
    date(block_timestamp) as date, 
    token_name, 
    sum(amount) as daily_outflow,
    sum(daily_outflow) over (order by date) as total_outflow
from ethereum.assets.erc20_token_transfers
where from_address = '0x88e6a0c2ddd26feeb64f039a2c41296fcb3f5640' -- USDC-ETH Uniswap v3 5bp
  and token_address = '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48' -- USDC Token Address
and current_date - date(block_timestamp) < 30
group by date, token_name
order by date desc
)
select 
    inflows.date,
    outflows.date,
    inflows.token_name,
    total_inflow,
    total_outflow,
    nvl(inflows.total_inflow,0) - nvl(outflows.total_outflow,0) as net_flow
from inflows 
left outer join outflows on inflows.date = outflows.date and inflows.token_name = outflows.token_name
order by 1 desc