SQL SERVER 快速插入千萬條資料

1. 正常插入：插入非常慢。

declare @count int = 10000000, @index int = 0

begin tran
while(@index < @count)
begin
insert into ordertest(id) values 
(round(rand() * 10000000, 0))
set @index = @index + 1
endcommit

declare @count int = 10000000, @index int = 0

begin tran
while(@index < @count)
begin
insert into ordertest(id) values
--1 
(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--2,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--3,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--4,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--5,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--6,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--7,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--8,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--9,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
--10
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
,(round(rand() * 100000000, 0))
set @index = @index + 100
endcommit

3.總結：一條語句可插入多條資料，以此來加快插入速度。具體原理，待大神們解釋。

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