2016-08-05 4 views

답변

1
Create table my_new_table as 
    Select grid_code 
    ,'size' attribute_type 
    , 1 attribute_code 
    , size_code_1 attribute_value 
    From my_table 
Union 
Select grid_code 
    ,'size' attribute_type 
    , 2 attribute_code 
    , size_code_2 attribute_value 
    From my_table 
... Etc 
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