从单个表转换使用Oracle临时表在Oracle中对大数据进行分页的存储过程

问题描述 投票：-2回答：1

我想对大数据进行分页。并在每次单击页面时获得100条记录，并且还希望使用Oracle数据库返回“页码，总计记录”。这里的问题是我对Oracle完全不了解。但是我已经在SQL Server中进行了查询。

但是客户端需要在Oracle中执行该查询。在SQL Server中，我通过选择到临时表中，然后根据开始和结束参数获取行来计算了分页部分。如果我们需要每页发送100条记录作为响应。我正在尝试将此SQL Server查询转换为Oracle查询。

SQL Server查询：

ALTER PROCEDURE [dbo].[abccccc] 
@PageNumber varchar(max)=null,
@dtfrom varchar(100) = '',
@dtto varchar(100) = '',
@Search varchar(max)=null
AS
    DECLARE @RowsPerPage int = 10
    declare @start int=0
    declare @end int=0
    declare @NumOfRecords int=0
    IF @PageNumber IS NULL OR @PageNumber = ''
    BEGIN
        SET @PageNumber = 1            --by default pageno will be 1
    END
    set @start = ((@PageNumber - 1) * @RowsPerPage) + 1       --calculating start page
    set @end = (@RowsPerPage * (@PageNumber))              --calculating end page
    print @start
    print @end  
    BEGIN
--putting data in temp table
        select ROW_NUMBER() over (order by ProposerId desc) as SRNO,* into #tmp1 from(
        select * from [dbo].[TTB_ProposerDetails] where Active = 1) as data where ((convert(date,CreatedOn,103) <= convert(date,@dtto,103) and 
        convert(date,CreatedOn,103) >= convert(date,@dtfrom,103) OR IsNull(@dtfrom,'') = '' or IsNull(@dtto ,'') = '')) and
         (FirstName like '%' + @Search + '%' or isnull(@Search,'')='' or AccountNo like '%' + @Search + '%' or isnull(@Search,'')=''or 
         LastName like '%' + @Search + '%' or isnull(@Search,'')='')

        set @NumOfRecords=(select count(*) from #tmp1)

        select * from #tmp1 where SRNO between @start and @end    --fetch from temp tbl

        drop table #tmp1

        select 'Success' as msg,1 as n,@NumOfRecords as ipara1,(@NumOfRecords/@RowsPerPage) ipara2, @PageNumber as ipara3
    END
END

我尝试将SQL Server代码转换为Oracle代码。 

CREATE OR REPLACE PROCEDURE abc( 
p_PageNumber varchar DEFAULT null,
p_dtfrom varchar2 DEFAULT '',
p_dtto varchar2 DEFAULT '',
p_Search varchar DEFAULT null), cur OUT SYS_REFCURSOR, cur2 OUT SYS_REFCURSOR
AS
 v_RowsPerPage number(10) := 10;
 v_start number(10):=0;
 v_end number(10):=0;
 v_NumOfRecords number(10):=0;
BEGIN

BEGIN   

    IF p_PageNumber IS NULL OR p_PageNumber = ''
    THEN
        p_PageNumber := 1;
    END IF;

    v_start := ((p_PageNumber - 1) * v_RowsPerPage) + 1;
    v_end := (v_RowsPerPage * (p_PageNumber));
    print v_start
    print v_end 
    BEGIN

        select ROW_NUMBER() over (order by ProposerId desc) as SRNO,* into #tmp1 from(
        select * from TTB_ProposerDetails where Active = 1) as data where ((convert(date,CreatedOn,103) <= convert(date,p_dtto,103) and 
        convert(date,CreatedOn,103) >= convert(date,p_dtfrom,103) OR NVL(p_dtfrom,'') = '' or NVL(p_dtto ,'') = '')) and
         (FirstName like '%' || p_Search || '%' or nvl(p_Search,'')='' or AccountNo like '%' || p_Search || '%' or nvl(p_Search,'')=''or 
         LastName like '%' || p_Search || '%' or nvl(p_Search,'')='')

        select count(*) INTO v_NumOfRecords from #tmp1;

        open cur for select * from #tmp1 where SRNO between v_start and v_end;

        drop table #tmp1;

        open cur2 for select 'Success' as msg,1 as n,v_NumOfRecords as ipara1,(v_NumOfRecords/v_RowsPerPage) ipara2, p_PageNumber as ipara3 from dual;
    END
END
END;

但是，我遇到一个错误。

oracle oracle11g oracle10g oracle-sqldeveloper
1个回答
0
投票
CREATE PROC dbo.Sp_SearchData
(
 @PageIndex INT = 1, ---Here We set the Default value to Page No.(i.e.PageIndex)
 @PageSize INT = 15, -- and PageSize ie. How many Records do want?
 @Mode INT = NULL,
 @Name VARCHAR(50) = NULL,
 @Address VARCHAR(50) = NULL    

)
AS
BEGIN

    IF(@Mode=1)
    BEGIN

    SELECT ROW_NUMBER()OVER  
    (  
    ORDER BY ID DESC  ---Select Your Column That you want Order wise data
    )
    AS 
    RowNumber,
    ID,
    NAME,ADDRESS ---Put All Your Column Name
    INTO #Results ---Here We Dumping the Data In temp Table 
    FROM TableName 
    WHERE NAME LIKE  ISNULL('%'+(@Name)+'%','')
    AND  ADDRESS LIKE  ISNULL('%'+(@Address)+'%','') 
    ORDER BY ID


    SELECT * FROM #Results  --Here you will Get All your Pagination 
    WHERE RowNumber BETWEEN(@PageIndex -1) * @PageSize + 1 AND(((@PageIndex -1) * @PageSize + 1) + @PageSize) - 1  

    SELECT COUNT(*) AS TotalNumberOfRecords FROM #Results ---Here you will Get Total No. of Records

    DROP TABLE #Results

    END

END

用于测试存储过程的脚本：-

EXEC dbo.Sp_SearchData
@PageIndex = '2', ---Here i'm Getting All the Records PageNo.--2 data
@PageSize ='15', ---Increase the No. of Records that you want at single time here i'm set 15 ...you can set 100 or more
@Mode='1',
@Name='',
@Address=''

注：-阅读所有注释...开发了自己的逻辑...您将获得输出.....

编辑后：-

begin
  declare
    PageIndex number;
    PageSize number;
    Name varchar2(50);
    Address varchar2(50);
  begin
    null;
  end;
  PageIndex := 1;
  PageSize := 15;
  Name := '';
  Address := '';
  create table #Results
  as
  select 
    row_number() over (order by ID desc) RowNumber, 
    ID, 
    NAME, 
    ADDRESS ADDRESS
  from TableName
  where (
    NAME like nvl((('%' + @Name) + '%'), '')
    and ADDRESS like nvl((('%' + @Address) + '%'), '')
  )
  order by ID;
  select *
  from #Results
  where RowNumber between (((@PageIndex - 1) * @PageSize) + 1) and (((((@PageIndex - 1) * @PageSize) + 1) + @PageSize) - 1);
  select count(*) TotalNumberOfRecords
  from #Results;
 Drop table #Results Purge;
end;

我已将以上查询转换为Oracle 11g

使用此网站：-https://www.jooq.org/translate/

注意：-我不确定这行Drop table #Results Purge;尝试找出如何在oracle 11 g中删除临时表的方法。...我不确定。...

0
投票
Please checkout this I am getting an error. I tried converting my sql server code to Oracle one. Please help.


CREATE OR REPLACE PROCEDURE abc( 
p_PageNumber varchar DEFAULT null,
p_dtfrom varchar2 DEFAULT '',
p_dtto varchar2 DEFAULT '',
p_Search varchar DEFAULT null), cur OUT SYS_REFCURSOR, cur2 OUT SYS_REFCURSOR
AS
 v_RowsPerPage number(10) := 10;
 v_start number(10):=0;
 v_end number(10):=0;
 v_NumOfRecords number(10):=0;
BEGIN

BEGIN   

    IF p_PageNumber IS NULL OR p_PageNumber = ''
    THEN
        p_PageNumber := 1;
    END IF;

    v_start := ((p_PageNumber - 1) * v_RowsPerPage) + 1;
    v_end := (v_RowsPerPage * (p_PageNumber));
    print v_start
    print v_end 
    BEGIN

        select ROW_NUMBER() over (order by ProposerId desc) as SRNO,* into #tmp1 from(
        select * from TTB_ProposerDetails where Active = 1) as data where ((convert(date,CreatedOn,103) <= convert(date,p_dtto,103) and 
        convert(date,CreatedOn,103) >= convert(date,p_dtfrom,103) OR NVL(p_dtfrom,'') = '' or NVL(p_dtto ,'') = '')) and
         (FirstName like '%' || p_Search || '%' or nvl(p_Search,'')='' or AccountNo like '%' || p_Search || '%' or nvl(p_Search,'')=''or 
         LastName like '%' || p_Search || '%' or nvl(p_Search,'')='')

        select count(*) INTO v_NumOfRecords from #tmp1;

        open cur for select * from #tmp1 where SRNO between v_start and v_end;

        drop table #tmp1;

        open cur2 for select 'Success' as msg,1 as n,v_NumOfRecords as ipara1,(v_NumOfRecords/v_RowsPerPage) ipara2, p_PageNumber as ipara3 from dual;
    END
END
END;
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