我将创建一个临时表，批量插入很多，在新表中选择所需的内容，然后将其删除.

I'd create a temporary table, bulk insert the lot, select into the new table what you need and drop the temporary table.

类似

CREATE TABLE dbo.TempImport
(
    FirstName varchar(255),
    LastName varchar(255),
    Country varchar(255),
    Age varchar(255)
)
GO
BULK INSERT dbo.TempImport FROM 'PathToMyTextFile' WITH (FIELDTERMINATOR = ';', ROWTERMINATOR = '\n')
GO
INSERT INTO dbo.ExistingTable
(
    FName,
    LName,
    Country
)
SELECT  FirstName,
       LastName,
       Country
FROM       dbo.TempImport
GO
DROP TABLE dbo.TempImport
GO