Add EXTERNAL SQL scripts

EXTERNAL/14 dm_tf_external_retail_special_bkp.sql

@@ -0,0 +1,22 @@
+-- Databricks notebook source
+insert overwrite table dm.dm_tf_external_retail_special 
+--dtp 部分的数据 EGFR TKI 需要直取
+select 
+  case when a.market = 'EGFR TKI' then 'EGFR TKI Market' else a.market end as market
+  ,a.province_city
+  ,a.audit_key
+  ,a.audit_source
+  ,a.date_key
+  ,a.yyyymm
+  ,a.sales_value
+  ,a.sales_volume
+  ,a.pdot_counting_unit
+  ,c.sales_value sales_value_ly
+  ,c.sales_volume sales_volume_ly
+  ,c.pdot_counting_unit pdot_counting_unit_ly
+  ,'dtp' `source`
+from dws.dws_tf_external_retail_dtp_special a 
+left join dws.dws_tf_external_retail_dtp_special c --取去年同期数据
+  on a.province_city = c.province_city 
+  and a.market = c.market
+  and (a.yyyymm-100) = c.yyyymm