比特币上的大查询答案

【问题标题】：BIGQUERY ON BITCOIN比特币上的大查询
【发布时间】：2022-01-22 12:52:51
【问题描述】：

我使用此代码获取有余额的地址，但我想将地址交易计数添加到结果中。你能帮帮我吗

-- SQL source from https://cloud.google.com/blog/products/data-analytics/introducing-six-new-cryptocurrencies-in-bigquery-public-datasets-and-how-to-analyze-them
WITH double_entry_book AS (
   -- debits
   SELECT
    array_to_string(inputs.addresses, ",") as address
   , inputs.type
   , -inputs.value as value
   FROM `bigquery-public-data.crypto_bitcoin.inputs` as inputs
   UNION ALL
   -- credits
   SELECT
    array_to_string(outputs.addresses, ",") as address
   , outputs.type
   , outputs.value as value
   FROM `bigquery-public-data.crypto_bitcoin.outputs` as outputs
)
SELECT
   address
,   type   
,   sum(value) as balance
FROM double_entry_book
GROUP BY 1,2
ORDER BY balance DESC
LIMIT 100

【问题讨论】：

标签： sql google-bigquery bitcoin

【解决方案1】：

我对数据集不是很熟悉，但是如果每个输出和输入都被归类为单个事务，那么每个地址的事务数就是该地址的行数，对吗？所以你可以添加 count(address) 来计算这样的交易：

-- SQL source from https://cloud.google.com/blog/products/data-analytics/introducing-six-new-cryptocurrencies-in-bigquery-public-datasets-and-how-to-analyze-them
WITH double_entry_book AS (
   -- debits
   SELECT
    array_to_string(inputs.addresses, ",") as address
   , inputs.type
   , -inputs.value as value
   FROM `bigquery-public-data.crypto_bitcoin.inputs` as inputs
   UNION ALL
   -- credits
   SELECT
    array_to_string(outputs.addresses, ",") as address
   , outputs.type
   , outputs.value as value
   FROM `bigquery-public-data.crypto_bitcoin.outputs` as outputs
)
SELECT
   address
,   type   
,   sum(value) as balance
,   count(address) as transactions
FROM double_entry_book
GROUP BY 1,2
ORDER BY balance DESC
LIMIT 100

【讨论】：