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Developer-C 11.1
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CREATE TABLE table_name (`ID` int, `Fileid1` int, `Fileid2` int, `Fileid3` int, `LanguageID1` varchar(3), `LanguageID2` varchar(3), `LanguageID3` int) ; INSERT INTO table_name (`ID`, `Fileid1`, `Fileid2`, `Fileid3`, `LanguageID1`, `LanguageID2`, `LanguageID3`) VALUES (1, 123, 256, NULL, 'a12', 'a23', NULL), (2, 124, NULL, NULL, 'a12', NULL, NULL) ;
select row_number() over(order by ID, Fileid) as ID, Fileid, LanguageID from (select ID, Fileid1 as Fileid, LanguageID1 as LanguageID from table_name union all select ID, Fileid2 as Fileid, LanguageID2 as LanguageID from table_name union all select ID, Fileid3 as Fileid, LanguageID3 as LanguageID from table_name) t where Fileid is not null
ID
Fileid
LanguageID
1
123
a12
2
256
a23
3
124
a12