Menggabungkan dua kolom sql dengan data yang dibatasi dengan menyusun menjadi satu kolom dengan data yang dibatasi

Dengan hanya menggunakan ekspresi tabel umum, kita juga bisa mendapatkan hasil yang diperlukan, seperti di bawah ini:-

Pertama mari kita siapkan datanya

declare @original table(
[value] varchar(250), 
[unit] varchar(250)
)
insert into @original values 
('4 ; 5','mg ; kg    '),
('50','mg        '                ),
('7.5 ; 325','kg ; mg    '        ),
('100 ; 1.5 ; 50 ','mg ; g ; mg'  )

Sekarang, mari kita buat ekspresi tabel umum:-

;with cte as (
    select o.[value]+';' [value],o.[unit]+';' [unit],row_number() over (ORDER BY (Select 0)) [row]   from @original o
),cte2 as (
    select *
    ,1 [ValueStart],CHARINDEX(';',[value]) [ValueEnd]
    ,1 [UnitStart],CHARINDEX(';',[unit]) [UnitEnd]
     from cte
),cte3 as (
    select * from cte2
    union all 
    select [value],[unit],[row]
        ,[ValueEnd]+1 [ValueStart],CHARINDEX(';',[value],[ValueEnd]+1) [ValueEnd] 
        ,[UnitEnd]+1 [UnitStart],CHARINDEX(';',[unit],[UnitEnd]+1) [UnitEnd] 
    from cte3 where [UnitEnd]>0
),cte4 as (
    select *,row_number() over (partition by [row] order by [row]) [subRow]
    , rtrim(ltrim(substring([unit],[UnitStart],[UnitEnd]-[UnitStart])))  [subUnit] 
    , rtrim(ltrim(substring([value],[ValueStart],[ValueEnd]-[ValueStart])))  [subValue] 
    from cte3
    where [UnitEnd]>0
),cte5 as (
    select subRow,[row],[subValue],[subUnit],cast([subValue]+' '+[subUnit] as varchar(max)) [ValueUnit] from cte4 where subRow=1
    union all
    select cte4.subRow,cte4.[row],cte4.[subUnit],cte4.[subValue]
        ,cte5.[ValueUnit]+';'+ cte4.[subValue]+' '+cte4.[subUnit] [ValueUnit] 
            from cte4
        inner join cte5 on (cte5.subRow+1)=cte4.subRow and cte5.[row]=cte4.[row]
),cte6 as (
    select *,row_number() over (partition by [row] order by subRow desc) [selected] from cte5
)
select ValueUnit from cte6
where [selected]=1
order by [row] 

Hasilnya akan seperti di bawah ini:-

ValueUnit
============
4 mg;5 kg 
50 mg  
7.5 kg;325 mg 
100 mg;1.5 g;50 mg