根据当前日期求字段中日期的季度
Oracle数据库
1 select 2 T1.INDEXCODE 3 ,T1.CREATETIME 4 ,CASE when T1.CREATETIME = 5 (case when to_char(SYSDATE,'MM')/3-1 <= 0 6 then TRIM(to_char(SYSDATE,'YYYY')-1)||'-'||TRIM(4+(to_char(SYSDATE,'MM')/3-1)) 7 else TRIM(to_char(SYSDATE,'YYYY'))||'-'||TRIM(to_char(SYSDATE,'MM')/3-1) 8 end) then '本季度' 9 when T1.CREATETIME = 10 (case when to_char(SYSDATE,'MM')/3-2 <= 0 11 then TRIM(to_char(SYSDATE,'YYYY')-1)||'-'||TRIM(4+(to_char(SYSDATE,'MM')/3-2)) 12 else TRIM(to_char(SYSDATE,'YYYY'))||'-'||TRIM(to_char(SYSDATE,'MM')/3-2) 13 end) 14 then '前1季度' 15 when T1.CREATETIME = 16 (case when to_char(SYSDATE,'MM')/3-3 <= 0 17 then TRIM(to_char(SYSDATE,'YYYY')-1)||'-'||TRIM(4+(to_char(SYSDATE,'MM')/3-3)) 18 else TRIM(to_char(SYSDATE,'YYYY'))||'-'||TRIM(to_char(SYSDATE,'MM')/3-3) 19 end) 20 then '前2季度' 21 when T1.CREATETIME = 22 (case when to_char(SYSDATE,'MM')/3-4 <= 0 23 then TRIM(to_char(SYSDATE,'YYYY')-1)||'-'||TRIM(4+(to_char(SYSDATE,'MM')/3-4)) 24 else TRIM(to_char(SYSDATE,'YYYY'))||'-'||TRIM(to_char(SYSDATE,'MM')/3-4) 25 end) 26 then '前3季度' 27 when T1.CREATETIME = 28 (case when to_char(SYSDATE,'MM')/3-5 <= 0 29 then TRIM(to_char(SYSDATE,'YYYY')-1)||'-'||TRIM(4+(to_char(SYSDATE,'MM')/3-5)) 30 else TRIM(to_char(SYSDATE,'YYYY'))||'-'||TRIM(to_char(SYSDATE,'MM')/3-5) 31 end) 32 then '前4季度' END as 指标 33 from TableA t1 34 INNER JOIN TableB t2 on T1.indexcode = t2.indexcode 35 where T2.indexcode in ('I1301000019')
结果：
在报表中使用动态参数，根据所选择日期信息展示所在季度各指标
1 select 2 CREATETIME 3 ,CASE when T1.CREATETIME = '${jd}' then '本期' 4 when T1.CREATETIME = 5 (case when SUBSTR('${jd}',-1,1)-1<=0 6 then SUBSTR('${jd}',1,4)-1||'-'||(4+SUBSTR('${jd}',-1,1)-1) 7 else SUBSTR('${jd}',1,4)||'-'||(SUBSTR('${jd}',-1,1)-1) 8 end) 9 then '前1期' 10 when T1.CREATETIME = 11 (case when SUBSTR('${jd}',-1,1)-2<=0 12 then SUBSTR('${jd}',1,4)-1||'-'||(4+SUBSTR('${jd}',-1,1)-2) 13 else SUBSTR('${jd}',1,4)||'-'||(SUBSTR('${jd}',-1,1)-2) 14 end) 15 then '前2期' 16 when T1.CREATETIME = 17 (case when SUBSTR('${jd}',-1,1)-3<=0 18 then SUBSTR('${jd}',1,4)-1||'-'||(4+SUBSTR('${jd}',-1,1)-3) 19 else SUBSTR('${jd}',1,4)||'-'||(SUBSTR('${jd}',-1,1)-3) 20 end) 21 then '前3期' 22 when T1.CREATETIME = 23 (case when SUBSTR('${jd}',-1,1)-4<=0 24 then SUBSTR('${jd}',1,4)-1||'-'||(4+SUBSTR('${jd}',-1,1)-4) 25 else SUBSTR('${jd}',1,4)||'-'||(SUBSTR('${jd}',-1,1)-4) 26 end) 27 then '前4期' END as 季度 28 from table
规范日期:将字符串形式的'2019-08-01'变成‘8/1’类型
select replace(str(substring('2019-08-01',6,2)*1)+'/'+str(right('2019-08-01',2)*1),' ','')
