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NEXT_DAY(x,y)?????????????????????????????????????????????????NEXT_DAY????????????
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SELECT COUNT(1) FROM T_TJ_TEST WHERE TO_CHAR(T_RKSJ,'YYYY-MM-DD')=TO_CHAR(SYSDATE,'YYYY-MM-DD');????????
SELECT COUNT(1) FROM T_TJ_TEST WHERE TO_CHAR(T_RKSJ,'YYYY-MM-DD')=TO_CHAR(SYSDATE-1,'YYYY-MM-DD');????7?????
SELECT COUNT(1) FROM T_TJ_TEST WHERE T_RKSJ >= TRUNC(NEXT_DAY(SYSDATE-8,1)+1) AND T_RKSJ < TRUNC(NEXT_DAY(SYSDATE-8,1)+7)+1;????6?????
SELECT COUNT(1) FROM T_TJ_TEST WHERE T_RKSJ >= TRUNC(NEXT_DAY(SYSDATE-8,1)-6) AND T_RKSJ < TRUNC(NEXT_DAY(SYSDATE-8,1)+1);??????
SELECT COUNT(1) FROM T_TJ_TEST WHERE TO_CHAR(T_RKSJ,'YYYY-MM')=TO_CHAR(SYSDATE,'YYYY-MM');????????
SELECT COUNT(1) FROM T_TJ_TEST WHERE TO_CHAR(T_RKSJ,'YYYY-MM')=TO_CHAR(ADD_MONTHS(SYSDATE,-1),'YYYY-MM');转载地址:http://ropfk.baihongyu.com/