在BigQuery / StandardSQL上将DATE转换为TIMESTAMP

Question

我正在查询关于BigQuery的表格，该表格在“DATE”中有一个字段。格式。我想在＆＃39; TIMESTAMP＆＃39;中读到这个。格式。我尝试将DATE转换为整数，然后转换为TIMESTAMP但似乎没有效果。

Answer 1

#standardSQL
WITH `project.dataset.table` AS (
  SELECT CURRENT_DATE() AS dt
)
SELECT dt, CAST(dt AS TIMESTAMP) AS ts,
  TIMESTAMP(dt) AS ts2
FROM `project.dataset.table`   

结果为

Row dt          ts                           ts2
1   2018-06-13  2018-06-13 00:00:00.000 UTC  2018-06-13 00:00:00.000 UTC