知道如何计算BigQuery SQL中的运行总计吗?
id value running total
-- ----- -------------
1 1 1
2 2 3
3 4 7
4 7 14
5 9 23
6 12 35
7 13 48
8 16 64
9 22 86
10 42 128
11 57 185
12 58 243
13 59 302
14 60 362
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使用相关标量查询的传统SQL服务器不是问题:
SELECT a.id, a.value, (SELECT SUM(b.value)
FROM RunTotalTestData b
WHERE b.id <= a.id)
FROM RunTotalTestData a
ORDER BY a.id;
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或加入:
SELECT a.id, a.value, SUM(b.Value)
FROM RunTotalTestData a,
RunTotalTestData b …Run Code Online (Sandbox Code Playgroud)