【Oracle】一個SQL語法分析

1、源代碼： SELECT a.datatime, count(1) FROM ( SELECT TO_CHAR(d.datatime, 'yyyy-mm-dd hh24:mi') AS datatime FROM DATA d WHERE 1 = 1 AND d.DATATIME > TO_DATE('2017-08-02', 'yyyy-mm-dd') AND d.DATATIME < TO_

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