Table 1: select * from FV

Table 2: select * From DB_FV_W

UPDATE DB_FV_W  Set FV_02 =
 (CASE          
 WHEN db.FV_02 IS NULL THEN             
     '0'          
 Else     
     fv.MD  
 END) 
FROM DB_FV_W d LEFT OUTER JOIN FV f On d.Store_ID = f.Store_ID 
WHERE d.year = '2016'


I am getting error

Error report -
SQL Error: ORA-00933: SQL command not properly ended
00933. 00000 -  "SQL command not properly ended"

--- Complete Details ---

CREATE TABLE DB_FV_W
   (   
 STORE_ID NUMBER(3,0) Not Null, 
 FV_02 NUMBER
    )
  
   select * from DB_FV_W
Insert into DB_FV_W (STORE_ID,FV_02) values ('111',null);
Insert into DB_FV_W (STORE_ID,FV_02) values ('121',null);
Insert into DB_FV_W (STORE_ID,FV_02) values ('131',null);
Insert into DB_FV_W (STORE_ID,FV_02) values ('141',null);
Insert into DB_FV_W (STORE_ID,FV_02) values ('151',null);

Create Table FV(Store_ID  NUMBER(3,0) not null,MD NUMBER(5,2),TD NUMBER(5,2))

Insert into FV(Store_ID,MD, TD) Values('111','-15.93','23.69');
Insert into FV(Store_ID,MD, TD) Values('151','-10.12','53.19');
Insert into FV(Store_ID,MD, TD) Values('121','-52.20','256.62');

select * from FV
-- when updated query is executed

--- "need to correct the update query" --
UPDATE DB_FV_W  Set FV_02 =
 (CASE          
 WHEN db.FV_02 IS NULL THEN             
     '0'          
 Else     
     fv.MD  
 END) 
FROM DB_FV_W d LEFT OUTER JOIN FV f On d.Store_ID = f.Store_ID 
WHERE d.year = '2016'

-- output required is Main table is DB_FV_W and value to be updated to column FV_02 is from table FV column MD
-- condition case is if the store id is not found in table FV then in main table FV_W column FV_02 must be set as zero
-- if storeid found the update FV_02 as per the value in FV column MD