SELECT TOP 1 .... ORDER BY

Hi,
I have the following statement in SQL SERVER:
SELECT TOP 1 NAME FROM STUDENT ORDER BYGRADE
Now, I am trying to translate it ti ORACLE PLSQL, I came up with this statement:
SELECT NAME FROM STUDENT WHERE ROWNUM=1 ORDER BY GRADE
It doesn't work. I guess ORACLE generates ROWNUM before the ORDER BY operation...
How can I have SELECT TOP N ... ORDER BY ... in Oracle the way that I have it in SQL server?
Any help would be apprecited,
Alan

Can you cut and paste exactly what you're doing in a SQL*Plus session? It seems to work for me
SCOTT @ hp92 Local> create table t as select * from all_objects;
Table created.
Elapsed: 00:00:08.40
SCOTT @ hp92 Local> desc t;
Name                                                  Null?    Type
OWNER                                                 NOT NULL VARCHAR2(30)
OBJECT_NAME                                           NOT NULL VARCHAR2(30)
SUBOBJECT_NAME                                                 VARCHAR2(30)
OBJECT_ID                                             NOT NULL NUMBER
DATA_OBJECT_ID                                                 NUMBER
OBJECT_TYPE                                                    VARCHAR2(18)
CREATED                                               NOT NULL DATE
LAST_DDL_TIME                                         NOT NULL DATE
TIMESTAMP                                                      VARCHAR2(19)
STATUS                                                         VARCHAR2(7)
TEMPORARY                                                      VARCHAR2(1)
GENERATED                                                      VARCHAR2(1)
SECONDARY                                                      VARCHAR2(1)
SCOTT @ hp92 Local> create index idx_t on t( object_id );
Index created.
Elapsed: 00:00:00.78
SCOTT @ hp92 Local> analyze table t compute statistics for all indexed columns;
Table analyzed.
Elapsed: 00:00:00.53
SCOTT @ hp92 Local> set autotrace on;
SCOTT @ hp92 Local> select *
2    from (select * from t order by object_id)
3   where rownum < 2;
OWNER                          OBJECT_NAME                    SUBOBJECT_NAME
OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE        CREATED   LAST_DDL_ TIMESTAMP           STATUS T G S
SYS                            DUAL
       222            222 TABLE              12-MAY-02 12-MAY-02 2002-05-12:16:20:50 VALID   N N N
Elapsed: 00:00:00.13
Execution Plan
   0      SELECT STATEMENT Optimizer=CHOOSE
   1    0   COUNT (STOPKEY)
   2    1     VIEW
   3    2       TABLE ACCESS (BY INDEX ROWID) OF 'T'
   4    3         INDEX (FULL SCAN) OF 'IDX_T' (NON-UNIQUE)
Statistics
          0 recursive calls
          0 db block gets
          3 consistent gets
          1 physical reads
          0 redo size
       1142 bytes sent via SQL*Net to client
        511 bytes received via SQL*Net from client
          2 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
          1 rows processedJustin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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I have tried following logic to select top one in CDS view but its giving error -
define view Cds_View_First_Reference as select top one CReferredObject from CDSVIEWCROSSREF

Hi Ruchi,
since you posted this question in "ABAP in Eclipse" I assume you are asking about CDS in ABAP. This is important because the CDS features sets in ABAP and (native) HANA are different.
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Hi Guys,
I tried Group By from Select Top 1 Records, As below the script wasn't work.
Please help.
SELECT TOP 1 NR.SHGId, NR.Amount
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AND NR.ShgMemberId = ND.ShgMemberId
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[yourNDTable]
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Invalid object name 'NEW_DCB_REPORT'.

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This works. But I still don?t realize what was wrong with my syntax. Do those () will convert what?s inside parameter to string so parser could read it correctly? What actually is going on here?
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Hi,
Please read SQL and PL/SQL FAQ
Additionally when you put some code please enclose it between two lines starting with {noformat}{noformat}
i.e.:
{noformat}{noformat}
SELECT ...
{noformat}{noformat}
From what I have found on MS SQL documentation it seems that TOP keyword limits the output to a specified percentage of total number of rows. In your case, having specified 100, you are returning 100% of rows.
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Regards.
Al

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hi,
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Hi,
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Hi,
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SELECT       last_name, salary
FROM       got_analytics
WHERE       r_num / n_rows <= 12 / 100
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Convert "select top 5 ..." in Oracle8i

-- We are in the process of migrating application from SQLserver7 to Oracle8i,
-- and trying to convert a procedure to return top 5
-- rows given a search string.
-- In SQLserver7, "select top 5 ... "
-- The Oracle8i Application Developer's Guide - Fundamentals
-- recommends to use rownum, the query runs OK in SQL*Plus,
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select t.rank, t.productid, t.productname
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order by rank desc, productid
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-- Purpose: Retrieve product data for a specified search string
CREATE OR REPLACE PACKAGE pkg_test
IS
TYPE RT1 IS RECORD (
Rank NUMBER(10),
ProductID Product.ProductID%TYPE,
ProductName Product.ProductName%TYPE
TYPE RCT1 IS REF CURSOR RETURN RT1;
PROCEDURE pr_test
(i_searchstring IN VARCHAR2 ,
io_prdcursor IN OUT RCT1);
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CREATE OR REPLACE PACKAGE BODY pkg_test
AS
PROCEDURE pr_test
(i_searchstring IN VARCHAR2 ,
io_prdcursor IN OUT RCT1)
IS
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from (
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from Product
where status = 'A'
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order by rank desc, productid
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END pkg_test;
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Warning: Package Body created with compilation errors.
SQL> show error
Errors for PACKAGE BODY PKG_TEST:
LINE/COL ERROR
19/7 PLS-00103: Encountered the symbol "ORDER" when expecting one of
the following:
) * & - + / mod rem with an exponent (**) and or group having
intersect minus start union where connect | |
The symbol ")" was substituted for "ORDER" to continue.
20/11 PLS-00103: Encountered the symbol ")" when expecting one of the
following:
. ( , * @ % & - + ; / for mod rem an exponent (**) asc desc
| |
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v_string varchar2(50) := 'CAT';
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v_RC1 pkg_test.RCT1;
v_Score NUMBER(10);
v_ProductID Product.ProductID%TYPE;
v_ProductName Product.ProductName%TYPE;
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pkg_test.pr_test (v_string, v_RC1);
LOOP
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EXIT WHEN (v_RC1%NOTFOUND);
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null

http://www.orafaq.org/faqsql.htm#TOP
This may be of use, the plsql cursor declaration syntax may not have all the facilities of runnning the query from sqlplus:
How does one select the TOP N rows from a table?
Form Oracle8i one can have an inner-query with an ORDER BY clause. Look at this example:
SELECT *
FROM (SELECT * FROM my_table ORDER BY col_name_1 DESC)
WHERE ROWNUM < 10;
Use this workaround with prior releases:
SELECT *
FROM my_table a
WHERE 10 >= (SELECT COUNT(DISTINCT maxcol)
FROM my_table b
WHERE b.maxcol >= a.maxcol)
ORDER BY maxcol DESC;
Turloch

Selecting TOP 20 Products per Catagory

Hi
I'm trying to select the TOP 20 Products per Catagory out of my Star Topology Database
if someone would PLEASE be able to help me out.
Here is my Query: -
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AND FD.Time_KEY = DT.Time_KEY
AND FD.Client_Key = DC.Client_KEY
AND DT.[Year] = 2007
AND DT.[Month] IN (2)
AND Client_name LIKE '%Medicare%'
AND DP.Manufacture_Name LIKE '%Cipla%'
--AND DP.[Description] IN (SELECT TOP 20 [Description])
AND DP.Mims_Sub_Cat IN (SELECT Mims_Sub_Cat)
GROUP BY DP.Mims_Sub_Cat, DP.[Description], FD.Cost
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What about:
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RANK() OVER(PARTITION BY DP.Mims_Sub_Cat
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WHERE DP.Product_KEY = FD.Product_Key
AND FD.Time_KEY = DT.Time_KEY
AND FD.Client_Key = DC.Client_KEY
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AND DT.[Month] IN (2)
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HTH, Jens K. Suessmeyer.
http://www.sqlserver2005.de

Selecting top 10 rows based on one column.

Hi,
I need to display the top 10 records for each distinct value of a column.

USE Northwind;
-- Solution 1
SELECT S.SupplierID, S.CompanyName, CA.ProductID, CA.UnitPrice
FROM dbo.Suppliers AS S
CROSS APPLY
(SELECT TOP (10) *
FROM dbo.Products AS P
WHERE P.SupplierID = S.SupplierID
ORDER BY UnitPrice DESC, ProductID DESC) AS CA
ORDER BY S.SupplierID, CA.UnitPrice DESC, CA.ProductID DESC;
-- Solution 2
WITH C AS
SELECT S.SupplierID, S.CompanyName, P.ProductID, P.UnitPrice,
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JOIN dbo.Products AS P
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Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
MS SQL optimization: MS SQL Development and Optimization
MS SQL Consulting:
Large scale of database and data cleansing
Remote DBA Services:
Improves MS SQL Database Performance
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SELECT without ORDER BY - LIFO or FIFO as result?

Friends, I have a Loop that it inserts in a table that does not possess indice. When I to apply one SELECT, the result will be always the same? This sequencia is important for me. SELECT without ORDER BY functions as a LIFO (stack - Last In, First Out) or FIFO (list/line - First In, First Out)?
Example:
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When I will be to apply SELECT in the table ' table1 ' without ODER BY, which result that always will be returned?
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or will be able to come in another order?
II) 10, ..., 3, 2, 1
thanks

Oracle does not guarantee the rows order when ORDER BY is not specified.
From Oracle documentation :
order_by_clause
Use the ORDER BY clause to order rows returned by the statement. Without an order_by_clause, no guarantee exists that the same query executed more than once will retrieve rows in the same order.

You Cannot select assembly order for deletion error with BAPI_SALESORDER_CAHNGE after EHP6 upgrade

Hi All,
We are using Z transaction to update Wbs element data to sales order line item through BAPI_SALESORDER_CHANGE. After EHP6 upgrade while updating Wbs element data to old sales orders(Created before EHP6 upgrade) we are getting You cannot select assembly order < order number> for deletion (V1 748) error in BAPI return table, For multiple Sales order run.
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We debugged the BAPI and found one more error related to Authorization, But BAPI return table is giving different error (V1 748)message. Please help us in finding the issue.

Hi Sujay..
Please check.
http://help.sap.com/saphelp_47x200/helpdata/en/b7/58c4c87e0811d2b66a0000e82d8bd1/frameset.htm

Query:Dispatch selective process orders from a list available

Hi all,
we have a requirement in PP module to dispatch only selective process orders(based on a User criteria) from within a Zprogram.To achieve the same,
1)we have tried to do a BDC of transaction code CM25.But the line selection of the required order to be dispatched is not captured in recording.
2)Also,we have tried using the CM40 transaction(mass dispatch) and tried to control the orders dispatch through a user exit.This seems to working fine when CM40 is run independently.but the user exit does not get triggered when CM40 is called (using BDC)from within a Zprogram.
Can someone please throw some light/suggest any alternative for achieving the same i.e dispatch a selected process order from a list of available orders.

Hi all,
we have a requirement in PP module to dispatch only selective process orders(based on a User criteria) from within a Zprogram.To achieve the same,
1)we have tried to do a BDC of transaction code CM25.But the line selection of the required order to be dispatched is not captured in recording.
2)Also,we have tried using the CM40 transaction(mass dispatch) and tried to control the orders dispatch through a user exit.This seems to working fine when CM40 is run independently.but the user exit does not get triggered when CM40 is called (using BDC)from within a Zprogram.
Can someone please throw some light/suggest any alternative for achieving the same i.e dispatch a selected process order from a list of available orders.

SELECT TOP 1 .... ORDER BY

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