How to select top 10 records

How can I use SQL to select the top 10 records (do not use cursor)

... not only that but the order by and rownum check cannot be done in the same select. You need an in-line view.
select * from
(select * from table
order by whatever)
where rownum < 11
BEWARE: Incorrect use of rownum (which is very common) often returns the correct result by accident, but you cannot guarantee that the accident will continue to happen.

Similar Messages

How to select the first record?

Hi,
Could anyone tell me how to select the first record of every
group?
ex, I want to find out every customer their first purcaseDate.
CustomerID PurcaseDate Region
A00000001 2001/01/01 AA
A00000001 2001/02/02 AA
A00000002 2001/03/01 AC
A00000002 2001/05/07 AC
A00000003 2001/03/05 DD
result:
A00000001 2001/01/01 AA
A00000002 2001/03/01 AC
A00000003 2001/03/05 DD
Thanks

Vincent,
You could do it as Carl suggested, with a couple of
corrections. You would need to include the CustomNo column in
the order by clause of your cursor. You would also need to add
a where clause to your update statement, otherwise everywhere
Region in the table would be updated with the same value of the
last CustomNo in the cursor, regardless of the CustomNo in the
table. See corrected code below:
DECLARE
CURSOR     cust
IS
SELECT     DISTINCT CustomNo, Region, Purchase_Date
FROM       my_table
ORDER BY   CustomNo, Purchase_Date, Region;
c_customer VARCHAR2 (9) := '...';
c_region   VARCHAR2 (2) := '..';
cntr       NUMBER := 0;
BEGIN
FOR x IN cust
LOOP
    IF x.CustomNo != c_customer
    THEN
      c_customer := x.CustomNo;
      c_region := x.Region;
    ELSE
      UPDATE my_table
      SET    Region = c_region
      WHERE CustomNo = c_customer;
      cntr := cntr + 1;
      IF cntr = 25
      THEN
        COMMIT;
        cntr := 0;
      END IF;
    END IF;
END LOOP;
COMMIT;
EXCEPTION
WHEN OTHERS THEN
    NULL;
END;
Another option is that you could just use one update statement,
like this:
UPDATE my_table a
SET    Region =
       (SELECT DISTINCT Region
        FROM   my_table b
        WHERE (CustomNo, Purchase_Date) IN
               (SELECT   CustomNo, MIN (Purchase_Date)
                FROM     my_table
                GROUP BY CustomNo)
        AND    a.CustomNo = b.CustomNo)
Barbara

How to Get Top 10 records using SQL select statement.

:-) Hiee E'body,
I want to generate a sql report in which I only want the top 10 records based on the numeric value of a column.
For Example,
To generate a Location Wise, Employee Wise Years of Service Report.
Here I need the Top 10 Employees according to their No. of Years of Service for all the existing locations using a single query.
eg.
Location Emp No. YOS
India - 22 30
212 28
819 24 ...
US 123 40
312 33
90 33
144 30 ...
UK 77 20
79 20
331 18
109 16 ...
Every Location should display their respective Top 10 Employees
regarding their No. of Years of Service.
Please let me the know the solution to this.
Have a nice day.
Thanking You,
Vivek Kapoor.

For example if the table contained (India rows only shown) :
India 202 30
India 212 28
India 819 24
India 820 24
India 900 20
India 920 18
India 922 17
India 925 16
India 926 15
India 927 14
India 928 13
India 929 13
India 930 12
do you want to see
India 202 30
India 212 28
India 819 24
India 820 24
India 900 20
India 920 18
India 922 17
India 925 16
India 926 15
India 927 14
or
India 202 30
India 212 28
India 819 24
India 820 24
India 900 20
India 920 18
India 922 17
India 925 16
India 926 15
India 927 14
India 928 13
India 929 13
Also if the India rows were
India 202 30
India 212 30
India 819 30
India 820 30
India 900 30
India 920 30
India 922 30
India 925 30
India 926 30
India 927 30
India 928 30
India 929 30
do you want to see
India 202 30
India 212 30
India 819 30
India 820 30
India 900 30
India 920 30
India 922 30
India 925 30
India 926 30
India 927 30
or
India 202 30
India 212 30
India 819 30
India 820 30
India 900 30
India 920 30
India 922 30
India 925 30
India 926 30
India 927 30
India 928 30
India 929 30
Please clarify.
Thanks,
Partha

How to select only one record at a time in ALV

Hi all,
I have to use ALV report. Each record on the report output should have a button (or radio button) which will allow the record to be selected. My requirement is to select only one record at a time.
please guide me how to proceed further.
regards
manish

hi
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/sampleCheckBoxProgram
Regards
Pavan

Selecting Top N records in a table using a slider or drop down list

Hi Experts,
I have a query that displays 1000 records ( say) in VC iview.
Can i have a drop down list in the variable form to control the number of records displayed in the output table by the user .
or can i have a horizaontal slider ( Min value is 2 -max 1000) to display the number of records in the output table selected by the horizaontal slider.
basically iam having a requirement to give the user the capability to select the Top N records of the output table...where the user enters the N value in Drop downlist of variable form or user slides the N value using Horizontal slider
Thnaks
P.Navakanth

Hi
Yes it is possible. First you need to create 'Condition' in BEx query where you have to create 'TOP N' & 'N' should be a variable input. Then you will get this in 'Variable Screen' of a query. In VC for this same variable you can use slider. Use 'Select' function in the 'Action' of the slider & pass it to require table/graph.
Try this, this will give you the required result.
Regards
Sandeep

JDBC: How to select only those records which contains col1 is NULL

Hi All,
In JDBC SELECT scenario.
I wants to select only those records which contains col1 is NULL.
I am trying as follows:
<key>
<col1 isNull="TRUE" />
</key>
but in moni/monitoring i am getting Following Error
006-12-01 19:35:20 Error Unable to execute statement for table or stored procedure. 'BG_SALARY_SEND_SAP_D' (Structure 'SELECT') due to java.sql.SQLException: FATAL ERROR document format: structure 'SELECT', key element 'key' contains no values
2006-12-01 19:35:20 Error Exception caught by adapter framework: Error processing request in sax parser: Error when executing statement for table/stored proc. 'BG_SALARY_SEND_SAP_D' (structure 'SELECT'): java.sql.SQLException: FATAL ERROR document format: structure 'SELECT', key element 'key' contains no values
Please suggest how to do select rows with col1 is null.
Regards

Rohan,
isNull= true is used to make the KEY element not mandatory.
In your case, if the select query is
select emp from emptest where empno is null
, then the datatype will be,
<root>
<StatementName>
<dbTableName action=SELECT>
<table>emptest</table>
<access>
<emp></emp>
</access>
<key1>
<b><empno hasQuot="NO">is null</empno></b>
</key1>
</dbTableName>
</StatementName>
</root>
I dont have a DB access to try this, but I think this should work.
If this doesnt work, then you would need to use SQL_QUERY,
<root>
<StatementName>
<anyName action= SQL_QUERY>
<access>select emp from emptest where empno is null</access>
</anyName >
</StatementName>
</root>
http://help.sap.com/saphelp_nw04/helpdata/en/2e/96fd3f2d14e869e10000000a155106/content.htm
Regards,
Bhavesh

How to select first several records from a database table by using select?

Hi,
   I want to select first 100 records from a database table by using select clause. How to write it?
   Thanks a lot!

hai long!
             well select statement is used to retrive
records from the database.
following is the syntax to be used.
1) select * into corresponding fields of itab from basetable where condition.
endselect.
ex: select * into corresponding fields of itab from mara
            where matnr >= '1' and matnr <= '100'.
       append itab.
      endselect.
select * is a loop statement.it will execute till matnr is less than or equal to 100.
note: you can also mention the required field names in the select statement otherwise it will select all the field from table mara.
note: itab means your internal table name.
hope you got the required thing.if it really solved u r problem then award me the suitable points.<b></b>

How to get top 3 record from aggregated column

Hello,
i have a simple query which return all student in class with total marks. now i want to select top 3 student whose score is maximum. simple top three position. how can i use rank function here? or any other way to do that
select st.sti_roll_no ,st.sti_name , sum(rd.rd_obt_marks) as mycol from rd_result_detail rd , rm_result_master rm, sti_student_info st
where rm.rm_result_id = rd.rd_result_id
and st.sti_roll_no= rd.rd_student_id
--and rd.rd_student_id = 'MBP10293'
and rm.rm_semester = 3
and rm_session = 2009
and rm_batch= 3
and rm.rm_exam_type ='FINAL TERM'
and rm.rm_class_id = 'MBA'
group by st.sti_name, st.sti_roll_no
order by st.sti_roll_no;

Not sure!!!!!!!!!!!!!
with t as
(select st.sti_roll_no ,st.sti_name , sum(rd.rd_obt_marks) as mycol from rd_result_detail rd , rm_result_master rm, sti_student_info st
where rm.rm_result_id = rd.rd_result_id
and st.sti_roll_no= rd.rd_student_id
--and rd.rd_student_id = 'MBP10293'
and rm.rm_semester = 3
and rm_session = 2009
and rm_batch= 3
and rm.rm_exam_type ='FINAL TERM'
and rm.rm_class_id = 'MBA'
group by st.sti_name, st.sti_roll_no
order by st.sti_roll_no)
select sti_roll_no ,sti_name,mycol,dense_rank()over(order by mycol desc) rnk
from t
--where rnk<=3
SQL> ed
Wrote file afiedt.buf
1 select e.* from (select empno,ename,sal,dense_rank()over(order by sal desc) rnk
2* from emp)e where rnk<=3
SQL> /
     EMPNO ENAME             SAL        RNK
      7839 KING             5000          1
      7788 SCOTT            3000          2
      7902 FORD             3000          2
      7566 JONES            2975          3

How to select top one in CDS view ?

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.
Be that as it may,, SELECT TOP 1 is neither supported in the CDS implementation in ABAP nor in HANA.
In ABAP you might consider using the min() or max() function together with the appropriate GROUP BY clause in the CDS view (depending on what you want to achieve), but you can also easily "implement" this in the Open SQL statement which selects from your CDS view.
Using the additions SELECT SINGLE or UP TO 1 ROWS and an appropriate ORDER BY clause in Open SQL, you can achieve the same as SELECT TOP 1.
Unfortunately there is currently no possibility to define a view which delivers the TOP 1 which you can again use in another view ("view on view").
Kind regards
Chris

How do I select top 100 records in query

I would like to get only the first 100 or 200 records in a query. In Access query, it is TOP 100, is there an equal in Oracle sql?
Thanks!

select * from your_table
where rownum < 101;

HOW TO GET TOP N RECORDS IN SQL , URGENT

Hi,
I want to get the TOP 2 and BOTTOM 2 records (TOP 2 SAL , BOTTOM 2 SAL) from the following query result for each department . How do I get it using a SQL statement ? Thanks
SQL> SELECT A.DNAME, B.ENAME, B.SAL FROM DEPT A, EMP B WHERE A.DEPTNO = B.DEPTNO ORDER BY DNAME, SAL
DNAME------------ENAME--------SAL
ACCOUNTING-------KING--------5000
----------------CLARK--------2450
---------------MILLER--------1300
RESEARCH--------SCOTT--------3000
-----------------FORD--------3000
----------------JONES--------2975
----------------ADAMS--------1100
----------------SMITH---------800
SALES-----------BLAKE--------2850
----------------ALLEN--------1600
---------------TURNER--------1500
-----------------WARD--------1250
---------------MARTIN--------1250
----------------JAMES---------950
14 rows selected.

If Feroz is asking the TOP 2 Salaried employees and BOTTOM 2 Salaried employees
for ***EACH**** DEPARTMENT, then following SQL is one of the many ways(proves good with performance).Also brings top2+ bottom2 in one shot.SELECT dname, ename, sal FROM
(SELECT d.DNAME, e.ENAME, e.SAL,
dense_rank() over(PARTITION BY e.DEPTNO ORDER BY e.SAL) dr
FROM EMP e, DEPT d
WHERE e.DEPTNO = d.DEPTNO)
WHERE dr <= 2
UNION
SELECT dname, ename, sal FROM
(SELECT d.DNAME, e.ENAME, e.SAL,
dense_rank() over(PARTITION BY e.DEPTNO ORDER BY e.SAL DESC) dr
FROM EMP e, DEPT d
WHERE e.DEPTNO = d.DEPTNO)
WHERE dr <= 2
/Thx,
SriDHAR

How to select Most recent record with rest of record in ascending order...?

Dear Expert,
I have one table called Tab1 & have a lot columns. For this schenario, i mentioned few of the columns.
The columns are
product_type varchar2(100),
curr_date date (storing with time stamp),
other1_cloumn varchar2(10),
other2_cloumn varchar2(10)
Now I want to display all the records in ascending order except most recent record for every product_type || Union all || Most recent records in ascending order in single query.
For example...
product_type curr_date date other1_cloumn other2_cloumn
1, "10-May-2005 10:10:10", 10, 10
1, "10-May-2005 10:10:11", 10, 10
1, "10-May-2005 10:10:12", 10, 10
1, "10-May-2005 10:10:09", 10, 10
2, "10-May-2005 10:10:10", 10, 10
2, "10-May-2005 10:10:11", 10, 10
2, "10-May-2005 10:10:12", 10, 10
2, "10-May-2005 10:10:09", 10, 10
3, "10-May-2005 10:10:10", 10, 10
3, "10-May-2005 10:10:11", 10, 10
3, "10-May-2005 10:10:12", 10, 10
3, "10-May-2005 10:10:09", 10, 10
Now I want to display (OUTPUT) like...
1, "10-May-2005 10:10:10", 10, 10
1, "10-May-2005 10:10:11", 10, 10
1, "10-May-2005 10:10:09", 10, 10
2, "10-May-2005 10:10:10", 10, 10
2, "10-May-2005 10:10:11", 10, 10
2, "10-May-2005 10:10:09", 10, 10
3, "10-May-2005 10:10:10", 10, 10
3, "10-May-2005 10:10:11", 10, 10
3, "10-May-2005 10:10:09", 10, 10
1, "10-May-2005 10:10:12", 10, 10
2, "10-May-2005 10:10:12", 10, 10
3, "10-May-2005 10:10:12", 10, 10
Plz, provide a solution....

I want to display like...
select * from tab1 where (product_type,curr_date) in
(select product_type,max(curr_date) from tab1 group by product_type)
order by product_type
Union All
(select * from tab1 where (product_type,curr_date) NOT IN
(select product_type,max(curr_date) from tab1 group by product_type)
order by product_type)
But, In the above case, The ORDER BY Clause will not work...How to get this one...?
I mean.. I want to display all the records in ascending order except Most recent record base on Product type and next I want to display Most recent record in ascending order. I want to display both cases in a single query...?

HOW TO SELECT ONLY THOSE RECORDS WHERE NOT AVAILABLE ON SECOND TABLE

hi
i have two tables one name is menus and second name is UGroupDetail. Actually i have created it for user role privileges for my application
USE [LedgerDB]
GO
/****** Object: Table [dbo].[Menus] Script Date: 03/28/2015 13:45:27 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Menus](
[RightID] [int] NOT NULL,
[RightName] [nvarchar](200) NULL,
[GroupID] [int] NULL,
CONSTRAINT [PK_Menus] PRIMARY KEY CLUSTERED
[RightID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
second table is
USE [LedgerDB]
GO
/****** Object: Table [dbo].[UGroupDetail] Script Date: 03/28/2015 13:46:12 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[UGroupDetail](
[RightID] [int] NOT NULL,
[RightName] [nvarchar](200) NULL,
[GroupID] [int] NULL
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[UGroupDetail] WITH CHECK ADD CONSTRAINT [FK_UGroupDetail_Menus] FOREIGN KEY([RightID])
REFERENCES [dbo].[Menus] ([RightID])
ON UPDATE CASCADE
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[UGroupDetail] CHECK CONSTRAINT [FK_UGroupDetail_Menus]
GO
ALTER TABLE [dbo].[UGroupDetail] WITH CHECK ADD CONSTRAINT [FK_UGroupDetail_UserGroup] FOREIGN KEY([GroupID])
REFERENCES [dbo].[UserGroup] ([GroupID])
ON UPDATE CASCADE
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[UGroupDetail] CHECK CONSTRAINT [FK_UGroupDetail_UserGroup]
UGroupDetail have many groups as assigned to a new user but Menus table has only default groups which is 90 records
Menus table is a primary table and UGroupDetail is a Foreign key table
now i want to combined these tables and want to get only remaining records for each group
for example i have assigned 5 roles to GroupID 2 and now when i apply select commands the result should be 85 out 90 for GroupID 2
but i have not idea how to modify select query for get desired result

I don't really understand the tables. What is GroupID doing in the Menues table? And what does an entry without a RightName mean? Shouldn't that column be NOT NULL?
The UGroupDetail does not have any primary key. From your description, I would expect the PK to be (RightID, GroupID). But strangely enough, GroupID is nullable. So is RightName, but I think this column is redundant and should be removed.
Anyway, if I understand your question correctly, you need something like:
SELECT UG.Name, M.RightName
FROM   UserGroups UG
CROSS JOIN Menus M
WHERE NOT EXISTS (SELECT *
   FROM   UGroupDetail UGD
   WHERE UG.GroupID = UGD.GroupID
   AND UG.RightID = M.RightID)
Erland Sommarskog, SQL Server MVP, [email protected]

How to select 10 random records?

Requirement is:
Show all records if query returns less than equal to 10 records.
Else
Show random 10 records.
How do I achieve that using SQL alone?
Tried with sample but that didn't work. The number of records in table continuously growing.
Thanks

Hi,
would tell me how it works. little bit confusing me..
SQL> select count(*) from scott.emp;
COUNT(*)
        14
1* SELECT *   FROM scott.emp SAMPLE (8)
SQL> /
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO EMAIL
      7839 KING       PRESIDENT            17-NOV-81       5200       8250         10
SQL>
SQL> ED
Wrote file afiedt.buf
1* SELECT *   FROM scott.emp SAMPLE (7.5)
SQL> /
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO EMAIL
      7788 SCOTT      ANALYST         7566 09-DEC-82       3200        450         20
      7934 MILLER     CLERK           7782 23-JAN-82       1500        195         10
SQL> SELECT *   FROM scott.emp SAMPLE (7.5);
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO EMAIL
      7902 FORD       ANALYST         7566 03-DEC-81       3200        450         20Edited by: Ravi291283 on Jul 27, 2009 2:32 AM

How to display top n records(sorted by no of defects) within date range

I would like to display top n production orders(sorted by defects linked with each order) within the date range entered by the user.
Please advice.
I have 3 parameters to my report:
1. n(n is no of top records to be displayed)
2. From date
3. To date
Appreciate quick response.
Regards,
Hari

if you use the parameters in the report by placing them in the record selection it should display the records within your date range.
if {date field} in ?start to ?end then true

How to select top 10 records

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