Быстрое удаление символов по заданному списку

Create Table dbo.sku_Sym   -- With Collate Cyrillic_General_Bin for Column «NChar»
 
(
 
       UniCode             Int                 Primary Key                                    Not Null,
 
       NChar         NChar(1)     Collate Cyrillic_General_Bin      Not Null,
 
       Filter        Bit                                                                       Not Null   -- Col for Filter In Where. Have Indexes for Filter = 1.
 
)
 
---------------------------------------------------------------------------------------------------
 
Create Unique Index UC On dbo.sku_Sym(UniCode, NChar);
 
Create Unique Index UCF On dbo.sku_Sym(UniCode, NChar) Where Filter = 1;
 
Create Unique Index CU On dbo.sku_Sym(NChar, UniCode);
 
Create Unique Index CUF On dbo.sku_Sym(NChar, UniCode) Where Filter = 1;

Use tempdb
Go
 
Drop table if exists #t
Create table #t (txt nvarchar(255))
 
Insert into #t values (N'aaaAb'), (N'bBbBA'), (N'CcccC')
 
Drop table if exists #d
Create table #d (n int, dsbl nchar(1) collate Cyrillic_General_bin2)
 
Insert into #d values (1, N'A'), (2, N'b'), (3, N'C')
 
;With s as 
(Select Replace(a.txt collate Cyrillic_General_BIN2, b.dsbl collate Cyrillic_General_BIN2, '') txt, 1 n  
from #t a inner join #d b on b.n = 1
Union all
Select Replace(a.txt collate Cyrillic_General_BIN2, b.dsbl collate Cyrillic_General_BIN2, '')  txt, b.n n
    from s a inner join  #d b on b.n = a.n + 1
Where b.n <=3
)
Select txt from s 
Where n = 3