T-SQL tidak dapat mengembalikan

Saya pikir tidak ada yang dapat Anda lakukan tentang perawatan Sql Server dengan penanganan keparahan kesalahan DDL, beberapa di antaranya ditangani secara otomatis (misalnya secara paksa memutar kembali transaksi) oleh Sql Server itu sendiri.

Yang bisa Anda lakukan hanyalah membuat kode skrip Anda mengatasinya dan memberikan kesalahan deskriptif kepada pengguna skrip.

Contoh:

--  drop table thetransformersmorethanmeetstheeye
--  select * from thetransformersmorethanmeetstheeye



--  first batch begins here         

    begin tran

    create table thetransformersmorethanmeetstheeye(i int); -- non-erring if not yet existing

    -- even there's an error here, @@ERROR will be 0 on next batch
    ALTER TABLE [dbo].[Table1]  WITH CHECK ADD  CONSTRAINT [FK_constraint] FOREIGN KEY([field1], [field2])
    REFERENCES [dbo].[Table2] ([field3], [field4]);             

go  -- first batch ends here



--  second batch begins here

    if @@TRANCOUNT > 0 begin        
        PRINT 'I have a control here if things needed be committed or rolled back';

        -- @@ERROR is always zero here, even there's an error before the GO batch. 
        -- @@ERROR cannot span two batches, it's always gets reset to zero on next batch
        PRINT @@ERROR; 


        -- But you can choose whether to COMMIT or ROLLBACK non-erring things here
        -- COMMIT TRAN;
        -- ROLLBACK TRAN;

    end
    else if @@TRANCOUNT = 0 begin
        PRINT 'Sql Server automatically rollback the transaction. Nothing can do about it';
    end
    else begin
        PRINT 'Anomaly occured, @@TRANCOUNT cannot be -1, report this to Microsoft!';
    end

--  second batch implicitly ends here