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SQL Server 大 量数据的分页存储过程代码

2019-11-02 14:36:56
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   OK,我们首先创建一数据库:data_Test,并在此数据库中创建一表:tb_TestTable

  create database data_Test --创建数据库data_Test

  GO

  use data_Test

  GO

  create table tb_TestTable --创建表

  (

  id int identity(1,1) primary key,

  userName nvarchar(20) not null,

  userPWD nvarchar(20) not null,

  userEmail nvarchar(40) null

  )

  GO

  然后我们在数据表中插入2000000条数据:

  --插入数据

  set identity_insert tb_TestTable on

  declare @count int

  set @count=1

  while @count<=2000000

  begin

  insert into tb_TestTable(id,userName,userPWD,userEmail) values(@count,'admin','admin888','[email protected]')

  set @[email protected]+1

  end

  set identity_insert tb_TestTable off

  我首先写了五个常用存储过程:

  1,利用select top 和select not in进行分页,具体代码如下:

  create procedure proc_paged_with_notin --利用select top and select not in

  (

  @pageIndex int, --页索引

  @pageSize int --每页记录数

  )

  as

  begin

  set nocount on;

  declare @timediff datetime --耗时

  declare @sql nvarchar(500)

  select @timediff=Getdate()

  set @sql='select top '+str(@pageSize)+' * from tb_TestTable where(ID not in(select top '+str(@pageSize*@pageIndex)+' id from tb_TestTable order by ID ASC)) order by ID'

  execute(@sql) --因select top后不支技直接接参数,所以写成了字符串@sql

  select datediff(ms,@timediff,GetDate()) as 耗时

  set nocount off;

  end

  2,利用select top 和 select max(列键)

  create procedure proc_paged_with_selectMax --利用select top and select max(列)

  (

  @pageIndex int, --页索引

  @pageSize int --页记录数

  )

  as

  begin

  set nocount on;

  declare @timediff datetime

  declare @sql nvarchar(500)

  select @timediff=Getdate()

  set @sql='select top '+str(@pageSize)+' * From tb_TestTable where(ID>(select max(id) From (select top '+str(@pageSize*@pageIndex)+' id From tb_TestTable order by ID) as TempTable)) order by ID'

  execute(@sql)

  select datediff(ms,@timediff,GetDate()) as 耗时

  set nocount off;

  end

  3,利用select top和中间变量--此方法因网上有人说效果最佳,所以贴出来一同测试

  create procedure proc_paged_with_Midvar --利用ID>最大ID值和中间变量

  (

  @pageIndex int,

  @pageSize int

  )

  as

  declare @count int

  declare @ID int

  declare @timediff datetime

  declare @sql nvarchar(500)

  begin

  set nocount on;

  select @count=0,@ID=0,@timediff=getdate()

  select @[email protected]+1,@ID=case when @count<[email protected]*@pageIndex then ID else @ID end from tb_testTable order by id

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