最近收到一個(gè)需求，報(bào)表要展示全日期數(shù)據(jù)，但是表中數(shù)據(jù)是不全的。

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實(shí)現(xiàn)目標(biāo)：

查詢(xún)語(yǔ)句：

SELECT a,b,LAST_VALUE(b IGNORE NULLS) OVER(ORDER BY a) c,LAST_VALUE(b IGNORE NULLS) OVER(ORDER BY a Rows Between Unbounded Preceding And Current Row) c,NVL(b, LAG(b IGNORE NULLS) OVER(ORDER BY b)) d FROM ? WH_TEST? Order By a

解釋：last_value 區(qū)間默認(rèn)從第一行取到當(dāng)前行

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練習(xí)數(shù)據(jù)

源數(shù)據(jù)：

201606?? ?21.119182?? ?1.131613?? ?0.395940?? ?0.010000
201612?? ?12.606719?? ?0.649216?? ?0.000000?? ?0.395940
201706?? ?14.191882?? ?0.550000?? ?0.000000?? ?0.400000
201712?? ?10.758545?? ?0.320000?? ?0.550000?? ?0.400000
201806?? ?8.980767? ? ? 0.320040?? ?0.406476?? ?0.010000
201812?? ?4.804155? ? ? 0.190000?? ?3.060000?? ?0.380000
201906?? ?9.470459? ? ? 0.190000?? ?3.060000?? ?0.380000
201912?? ?9.884857? ? ? 0.420000?? ?0.000000?? ?1.660000
202006?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000

目標(biāo)數(shù)據(jù)格式：

201606?? ?21.119182?? ?1.131613?? ?0.395940?? ?0.010000
201607?? ?21.119182?? ?1.131613?? ?0.395940?? ?0.010000
201608?? ?21.119182?? ?1.131613?? ?0.395940?? ?0.010000
201609?? ?21.119182?? ?1.131613?? ?0.395940?? ?0.010000
201610?? ?21.119182?? ?1.131613?? ?0.395940?? ?0.010000
201611?? ?21.119182?? ?1.131613?? ?0.395940?? ?0.010000
201612?? ?12.606719?? ?0.649216?? ?0.000000?? ?0.395940
201701?? ?12.606719?? ?0.649216?? ?0.000000?? ?0.395940
201702?? ?12.606719?? ?0.649216?? ?0.000000?? ?0.395940
201703?? ?12.606719?? ?0.649216?? ?0.000000?? ?0.395940
201704?? ?12.606719?? ?0.649216?? ?0.000000?? ?0.395940
201705?? ?12.606719?? ?0.649216?? ?0.000000?? ?0.395940
201706?? ?14.191882?? ?0.550000?? ?0.000000?? ?0.400000
201707?? ?14.191882?? ?0.550000?? ?0.000000?? ?0.400000
201708?? ?14.191882?? ?0.550000?? ?0.000000?? ?0.400000
201709?? ?14.191882?? ?0.550000?? ?0.000000?? ?0.400000
201710?? ?14.191882?? ?0.550000?? ?0.000000?? ?0.400000
201711?? ?14.191882?? ?0.550000?? ?0.000000?? ?0.400000
201712?? ?10.758545?? ?0.320000?? ?0.550000?? ?0.400000
201801?? ?10.758545?? ?0.320000?? ?0.550000?? ?0.400000
201802?? ?10.758545?? ?0.320000?? ?0.550000?? ?0.400000
201803?? ?10.758545?? ?0.320000?? ?0.550000?? ?0.400000
201804?? ?10.758545?? ?0.320000?? ?0.550000?? ?0.400000
201805?? ?10.758545?? ?0.320000?? ?0.550000?? ?0.400000
201806?? ?8.980767? ? ? 0.320040?? ?0.406476?? ?0.010000
201807?? ?8.980767? ? ? 0.320040?? ?0.406476?? ?0.010000
201808?? ?8.980767? ? ? 0.320040?? ?0.406476?? ?0.010000
201809?? ?8.980767? ? ? 0.320040?? ?0.406476?? ?0.010000
201810?? ?8.980767? ? ? 0.320040?? ?0.406476?? ?0.010000
201811?? ?8.980767? ? ? 0.320040?? ?0.406476?? ?0.010000
201812?? ?4.804155? ? ? 0.190000?? ?3.060000?? ?0.380000
201901?? ?4.804155? ? ? 0.190000?? ?3.060000?? ?0.380000
201902?? ?4.804155? ? ? 0.190000?? ?3.060000?? ?0.380000
201903?? ?4.804155? ? ? 0.190000?? ?3.060000?? ?0.380000
201904?? ?4.804155? ? ? 0.190000?? ?3.060000?? ?0.380000
201905?? ?4.804155? ? ? 0.190000?? ?3.060000?? ?0.380000
201906?? ?9.470459? ? ? 0.190000?? ?3.060000?? ?0.380000
201907?? ?9.470459? ? ? 0.190000?? ?3.060000?? ?0.380000
201908?? ?9.470459? ? ? 0.190000?? ?3.060000?? ?0.380000
201909?? ?9.470459? ? ? 0.190000?? ?3.060000?? ?0.380000
201910?? ?9.470459? ? ? 0.190000?? ?3.060000?? ?0.380000
201911?? ?9.470459? ? ? 0.190000?? ?3.060000?? ?0.380000
201912?? ?9.884857? ? ? 0.420000?? ?0.000000?? ?1.660000
202001?? ?9.884857? ? ? 0.420000?? ?0.000000?? ?1.660000
202002?? ?9.884857? ? ? 0.420000?? ?0.000000?? ?1.660000
202003?? ?9.884857? ? ? 0.420000?? ?0.000000?? ?1.660000
202004?? ?9.884857? ? ? 0.420000?? ?0.000000?? ?1.660000
202005?? ?9.884857? ? ? 0.420000?? ?0.000000?? ?1.660000
202006?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000
202007?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000
202008?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000
202009?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000
202010?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000
202011?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000
202012?? ?12.355335?? ?2.110000?? ?0.260000?? ?1.410000

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提示：可利用循環(huán)生成日期，后使用last_value或lag實(shí)現(xiàn)。

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