sqlserver分页存储过程

create procedure proc_getpage
@table_name varchar(100),              --表名（视图）
@select_fields varchar(1000)=‘ * ‘,    --需要返回的列
@page_size int=10,                     --页尺寸,如果为0则表示返回所有行，不分页
@page_index int=1,                     --页码
@sort_field varchar(50)=‘‘,            --排序字段 
@order_type nvarchar(10)=‘desc‘,       --排序类型, asc|desc
@str_where varchar(max)=‘‘             --查询条件(注意: 不要加 where)
as
begin
    declare @select_sql varchar(max)       --主语句
    declare @count_sql varchar(max)        --获取总记录数语句
    declare @order_sql varchar(400)        --排序子语句

    if(@str_where!=‘‘)
    begin
        set @count_sql=‘select count(*) as total from ‘ + @table_name + ‘ where ‘ + @str_where
    end
    else
    begin
        set @count_sql=‘select count(*) as total from ‘ + @table_name
    end

    set @order_sql=‘ order by ‘ + @sort_field + ‘ ‘ + @order_type

    if(@page_size=0)
    begin
        if(@str_where!=‘‘) 
        begin
            set @select_sql=‘select ‘ + @select_fields + ‘ from ‘ + @table_name + ‘ where ‘ + @str_where + ‘ ‘ + @order_sql
        end
        else
        begin
            set @select_sql=‘select ‘ + @select_fields + ‘ from ‘ + @table_name + ‘ ‘ + @order_sql
        end
    end 
    else 
    begin
        set @select_sql=‘select * from (select row_number() over(‘ + @order_sql + ‘) as rowNo,‘ + @select_fields + ‘ from ‘ + @table_name
        
        if(@str_where!=‘‘)
        begin
            set @select_sql+=‘ where ‘ + @str_where
        end

        set @select_sql+=‘) as ‘ + @table_name + ‘ where rowNo between ‘ + cast(((@page_index-1)*@page_size+1) as varchar) + ‘ and ‘ + cast((@page_index*@page_size) as varchar)
    end 
    
    exec(@count_sql)
    exec(@select_sql)
end