Oracle PL/SQL之NEXT_DAY - 取得下一个星期几所在的日期
2011-08-22 23:15
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NEXT_DAY(date,char):返回指定日期(由date指定)后的第一个星期几(由char指定)所在的日期,char也可用1~7替代,1表示星期日。
REF:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/functions093.htm
duzz$scott@orcl>select sysdate,to_char(sysdate,'day') weekday,next_day(sysdate,1) n_day,to_char(next_day(sysdate,1),'day') n_weekday from dual; SYSDATE WEEKDAY N_DAY N_WEEKDAY ------------------- ---------- -------------------- ---------- 2011-08-22 23:01:18 monday 2011-08-28 23:01:18 sunday Elapsed: 00:00:00.00 duzz$scott@orcl>select sysdate,to_char(sysdate,'day') weekday,next_day(sysdate,2) n_day,to_char(next_day(sysdate,2),'day') n_weekday from dual; SYSDATE WEEKDAY N_DAY N_WEEKDAY ------------------- ---------- -------------------- ---------- 2011-08-22 23:04:26 monday 2011-08-29 23:04:26 monday Elapsed: 00:00:00.00 duzz$scott@orcl>select sysdate,to_char(sysdate,'day') weekday,next_day(sysdate,3) n_day,to_char(next_day(sysdate,3),'day') n_weekday from dual; SYSDATE WEEKDAY N_DAY N_WEEKDAY ------------------- ---------- -------------------- ---------- 2011-08-22 23:04:55 monday 2011-08-23 23:04:55 tuesday Elapsed: 00:00:00.00 duzz$scott@orcl>select sysdate,to_char(sysdate,'day') weekday,next_day(sysdate,'monday') n_day,to_char(next_day(sysdate,'monday'),'day') n_weekday from dual; SYSDATE WEEKDAY N_DAY N_WEEKDAY ------------------- ---------- -------------------- ---------- 2011-08-22 23:08:16 monday 2011-08-29 23:08:16 monday Elapsed: 00:00:00.00 duzz$scott@orcl>
REF:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/functions093.htm
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