[英]Extract hour from timestamp in string format on bigQuery
我有一個字符串格式的時間戳,看起來像2010-02-02T07:54:40Z
。 我怎樣才能從這個時間戳中得到HOUR
數?
我嘗試SELECT dt, EXTRACT(HOUR FROM dt) FROM table
但我收到此錯誤:
No matching signature for function EXTRACT for argument types: DATE_TIME_PART FROM STRING. Supported signatures: EXTRACT(DATE_TIME_PART FROM DATE); EXTRACT(DATE_TIME_PART FROM TIMESTAMP [AT TIME ZONE STRING]); EXTRACT(DATE_TIME_PART FROM DATETIME); EXTRACT(DATE_TIME_PART FROM TIME); EXTRACT(DATE_TIME_PART FROM INTERVAL)
如何從2010-02-02T07:54:40Z
獲取HOUR
?
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