引用: https://cloud.tencent.com/developer/article/1987036 --字符转日期select '2022-01-05 09:58:00' str,toDate(str),toDateTime(str),toDate('2022-01-05') --日期转字符select now() dd,toYear(dd) "年",toQuarter(dd) "季度",toDayOfM
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