alter procedure [dbo].[sp_bj_page]
@currentpage int,
@pagesize int,
@field_info varchar(500),
@table_info varchar(1000),
@field_id varchar(10), --
@field_order varchar(100),--
@otherwhere varchar(50),
@recordcount int output,
@pagecount int output
asbegin
set nocount on;
declare @minpage int
declare @maxpage int
declare @sql varchar(1000)
declare @sqlt nvarchar(300)
declare @sqlt1 nvarchar(300)
if @otherwhere='' or @otherwhere is null
begin
set @sqlt = 'select @recordcount = count(' + @field_id + ') from ' + @table_info
endelse
begin
set @sqlt = 'select @recordcount = count(' + @field_id + ') from ' + @table_info + ' where '+ @otherwhere
end--set @sqlt = 'select @recordcount = count(' + @field_id + ') from ' + @table_info
exec sp_executesql @sqlt,n'@recordcount int output',@recordcount output
--如何將exec執行結果放入變數中,如果是字串就要用n,n後面的變數一定要和@sqlt裡面的變數同名
print 'recordcount'+convert(nvarchar,@recordcount)
declare @rownumber int
set @rownumber=0
if @otherwhere='' or @otherwhere is null
begin
set @sqlt1 = 'select top 1 @rownumber=cast(rownumber as int)
from (select * , row_number() over(order by syopid) as rownumber from ' + @table_info + ' ) as a '
endelse
begin
set @sqlt1 = 'select top 1 @rownumber=cast(rownumber as int)
from (select * , row_number() over(order by syopid) as rownumber from ' + @table_info + ' ) as a ' +
+' where '+ @otherwhere
endexec sp_executesql @sqlt1,n'@rownumber int output',@rownumber output
print @rownumber
if @rownumber = 0
begin
return 0
endif @pagesize <= 0
begin
set @pagesize = 10
end
else if @pagesize > @recordcount
begin
set @pagesize = @recordcount
end
print 'pagesize' + convert(nvarchar,@pagesize)
set @pagecount = @recordcount / @pagesize
if ((@recordcount % @pagesize) != 0) --如果除不淨則加一頁
begin
set @pagecount = @recordcount / @pagesize
set @pagecount = @pagecount + 1
end
else
begin
set @pagecount = @recordcount /@pagesize
end
print 'pagecount' + convert(nvarchar,@pagecount)
if @currentpage <= 0
begin
set @currentpage = 1
end
else if @currentpage > @pagecount
begin
set @currentpage = @pagecount --如果輸入頁數大於總頁數則符最後一頁
end
print 'currentpage' + convert(nvarchar,@currentpage)
set @minpage = (@currentpage - 1) * @pagesize + 1 + @rownumber -1
set @maxpage = @minpage + @pagesize - 1
print 'maxpage' + convert(nvarchar,@maxpage)
begin
if @field_info like ''
set @field_info = '*'
if @otherwhere like ''
begin
set @sql = 'select ' + @field_info + ' from (select ' + @field_info +
' , row_number() over(order by ' + @field_order + ') as rownumber from '
+ @table_info + ') as a where rownumber between ' + convert(varchar(10),@minpage)
+ ' and ' + convert(varchar(10),@maxpage)
end
else
begin
set @sql = 'select ' + @field_info + ' from (select ' + @field_info +
' , row_number() over(order by '+ @field_order + ') as rownumber from '
+ @table_info + ') as a where rownumber between '
+ convert(varchar(10),@minpage) + ' and ' + convert(varchar(10),@maxpage)
+ ' and ' + @otherwhere
end
print (@sql)
exec(@sql)
end
end
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