Question

有人可以帮我理解这个查询的错误吗？

BigQuery显示错误：

错误：无法识别的名称：[...]
的case1

SELECT
  col1,
  CASE
    WHEN col2 IN ('text1') THEN 1
    ELSE 0
  END as case1
  CASE
    WHEN col2 IN ('text2') THEN 1
    ELSE 0
  END as case2
FROM `dataset.tablename`
WHERE case1 = 1 OR case2 = 1

Answer 1

SELECT
  col1,
  CASE
    WHEN col2 IN ('text') THEN 1
    ELSE 0
  END as case1
FROM `dataset.tablename`
WHERE CASE
    WHEN col2 IN ('text') THEN 1
    ELSE 0
  END = 1

您无法在同一语句中查询别名

BigQuery别名案例并在where子句中使用

1 个答案: