Select Top Records

Does anybody know how to limit the number of rows retieved in a SELECT statement? IE. I want to have a select statement that will retrieve only 10 records, even if there are more matching the WHERE statement....
Select * from employees <LIMIT_ROW_COUNT 10>;
null

use where rownum<=10

Similar Messages

Prepared Statement, executing SELECT TOP in Ms Access

I'm having the following problem. I built an application fetching data without any problem from MS SQL Server, this was using prepared statements. Now i'm having this strange problem with the following query:
SELECT TOP 1 *
FROM table
WHERE appliance_id = ?
AND ttimestamp_initpk <= ?
AND ((Type = ?) OR (Type = ?) OR (Type = ?) OR (Type = ?) OR (Type = ?) OR (Type = ?))
ORDER BY ttimestamp_initpk DESC
While on SQL Server this fetches just a record, on MS Access it fetches the whole set of records without worrying about TOP instruction.
That is, it acts like a SELECT * FROM, and this slows down runtime behaviour.
I'm using sun.jdbc.odbc.JdbcOdbcDriver, is it the problem?
Thanks, Mirko

Thanks for your answer, but i'm not sure this is the reason.
I made one more test: i wrote a .Net application connecting to a MS Access using an ODBC connection. SELECT TOP statement is working fine, so i think i'll try another JDBC driver. Any other solution??
Thanks,
Mirko

Sql query - Selecting last recorded values for each date in specified period

Hello,
Can someone please help me with my problem.
I'm trying to get last recorded balance for each day for specific box (1 or 2) in specified period of days from ms access database using ADOTool.
I'm trying to get that information with SQL query but so far unsuccessfully...
My table looks like this:
Table name: TestTable
Date Time Location Box Balance
20.10.2014. 06:00:00 1 1 345
20.10.2014. 12:00:00 1 1 7356
20.10.2014. 18:45:00 1 1 5678
20.10.2014. 23:54:00 1 1 9845
20.10.2014. 06:00:02 1 2 35
20.10.2014. 12:00:04 1 2 756
20.10.2014. 18:45:06 1 2 578
20.10.2014. 23:54:10 1 2 845
21.10.2014. 06:00:00 1 1 34
21.10.2014. 12:05:03 1 1 5789
21.10.2014. 15:00:34 1 1 1237
21.10.2014. 06:00:00 1 2 374
21.10.2014. 12:05:03 1 2 54789
21.10.2014. 15:00:34 1 2 13237
22.10.2014. 06:00:00 1 1 8562
22.10.2014. 10:00:00 1 1 1234
22.10.2014. 17:03:45 1 1 3415
22.10.2014. 22:00:00 1 1 6742
22.10.2014. 06:00:05 1 2 562
22.10.2014. 10:00:16 1 2 123
22.10.2014. 17:03:50 1 2 415
22.10.2014. 22:00:10 1 2 642
23.10.2014. 06:00:00 1 1 9876
23.10.2014. 09:13:00 1 1 223
23.10.2014. 13:50:17 1 1 7768
23.10.2014. 19:47:40 1 1 3456
23.10.2014. 21:30:00 1 1 789
23.10.2014. 23:57:12 1 1 25
23.10.2014. 06:00:07 1 2 976
23.10.2014. 09:13:45 1 2 223
23.10.2014. 13:50:40 1 2 78
23.10.2014. 19:47:55 1 2 346
23.10.2014. 21:30:03 1 2 89
23.10.2014. 23:57:18 1 2 25
24.10.2014. 06:00:55 1 1 346
24.10.2014. 12:30:22 1 1 8329
24.10.2014. 23:50:19 1 1 2225
24.10.2014. 06:01:00 1 2 3546
24.10.2014. 12:30:26 1 2 89
24.10.2014. 23:51:10 1 2 25
Let's say the period is 21.10.2014. - 23.10.2014. and I want to get last recorded balance for box 1. for each day. The result should look like this:
Date Time Location Box Balance
21.10.2014. 15:00:34 1 1 1237
22.10.2014. 22:00:00 1 1 6742
23.10.2014. 23:57:12 1 1 25
So far I've managed to write a query that gives me balance for ONLY ONE date (date with highest time in whole table), but I need balance for EVERY date in specific period.
My incorrect code (didn't manage to implement "BETWEEN" for dates...):
SELECT TestTable.[Date], TestTable.[Time], TestTable.[Location], TestTable.[Box], TestTable.[Balance]
FROM TestTable
WHERE Time=(SELECT MAX(Time)
FROM TestTable
WHERE Location=1 AND Box=1 );
Tnx!
Solved!
Go to Solution.

For loop
following query keep day (here 24 in below query) Variable from ( 1 to 28-29/30/31 as per month)
SELECT TOP 1 TestTable.[Date], TestTable.[Time], TestTable.[Location], TestTable.[Box], TestTable.[Balance]
FROM Test Table.
WHERE Time=(SELECT MAX(Time) FROM TestTable WHERE Location=1 AND Box=1 )
AND DATE = "2014-10-24";
PBP (CLAD)
Labview 6.1 - 2014
KUDOS ARE WELCOMED.
If your problem get solved then mark as solution.

Group By Select Top 1 Rows

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
FROM NEW_DCB_REPORT NR
WHERE NR.SHGId = ND.SHGId
AND NR.ShgMemberId = ND.ShgMemberId
AND NR.LoanNumber = ND.LoanNumber
GROUP BY NR.SHGId,NR.Amount
ORDER BY NR.LedgerNumber DESC
SHGId
SHGMemberId
LoanNumber
Amount
Select Top 1 Row
1028
147852
1
1000
Select Top 1 Row
1028
147853
1
2000
Select Top 1 Row
1028
147854
1
1000
Select Top 1 Row
1028
147855
1
1000
5000
I expected the results are:
SHGId
Amount
1028
5000

Yes I did it.
Select SHGId,
SUM(Amount)
amt FROM
SELECT NR.SHGId,
NR.Amount,
, Row_number()
Over(partition
by NR.SHGId,
NR.ShgMemberId , NR.LoanNumber
Order
by NR.LedgerNumber
DESC
) rn
FROM NEW_DCB_REPORT NR
JOIN
NEW_DCB_REPORT ND
ON
NR.SHGId
=
ND.SHGId
AND NR.ShgMemberId
= ND.ShgMemberId
AND NR.LoanNumber
= ND.LoanNumber
) t
Where rn=1
GROUP
BY SHGId
I just changed above the script Partition by add one more column and
[yourNDTable]
Should come NEW_DCB_REPORT table.
However, It shows below the error ,. Please help.
Invalid object name 'NEW_DCB_REPORT'.

Select Top 10 when it includes a GroupBy

I frequently use Select Top 10... to test a query before running it on a large MSSQL database. Works fine, except when the query includes a Group By Clause when it then seems to take as long as not using Top 10. I suspect this is beause it is actually
reading the whole table to get the top 10 Group Bys, whereas all I wanted was for it read the first 10 records and Group the result. Is there a way to write so that it does that
Gerry Mescal

sample code ..modify and try this SELECT a.*
FROM
SELECT a.*, ROW_NUMBER() OVER(PARTITION BY m.[col1] ORDER BY m.[col2] DESC) an
FROM [table] a
) a
WHERE a.an <= 10
ORDER BY m.[col2] DESCmark as answer if it is useful

Selecting top five rows

hi,
pls I have this issue that needs to be resolved. I need to select top five rows from a table depending on the values of a column stock_value. pls I will appreciate if someone can help me out, Francois pls try and help
This is the senerio:
I have a table stock, on the table I have company_name, stock_value, sector.
Now I want to get top five rows from this table depending on the five highest value of stock_value and for each sector.
lets try and write a query that will retrive the records after that I will put it in a procedure.
I know am suppose to ask this on mssql forum but most mssql forums takes time to reply and this is very urgent cos I have to deliver in 45 minutes time
thank you very much
jideofor

hy,
try out:
select s.name, sp. sp_sales total_sales
from salesperson s,
(select salesperson_id,sum(tot_sales) sp_sales
RANK() OVER (ORDER BY SUM(tot_SALES) desc) SALES_RANK
FROM ORDERS
WHERE YEAR = 2006
group by salesperson_id) sp
where sp.sales_rank <= 5 (...n)
and sp.salesperson_id = s.salesperson_id
order by sq.sales_rank;
give result in:
name total_sales
a 100
b 90
c 80
d 70
e 60
hope help you
regards

Selecting Specific Records for a Report

I have a report that requires 16 unique records to be displayed when the report is run. The table holds thousands of records but the Daily Report only wants the records that have 16 unique entries for that specific period. Is it possible to select these records only ? Cannot be by date because the entries could have been made anytime during the past 24 hours.
Ron Smith

Hi Ron,
Can you filter it with your max(readingfield)
and, perhaps, a case statement.
Select Tabel.Meter
Case "West" : "A''
Case "East" : "B"
or use Wallie's idea of an "in" statement
Maybe you can use max(readingfield) in a sub select
of the where clause.
where table.date = (select max(readingfield) from table)
or, if each meter has a different max(readingfield) , then pull each one
in separately.
or, create a view that pulls in the TOP 16 meters and link that
to the table. This should work if all else fails.
I hope this helps,
The Panda

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,
-- but gets error when used in a procedure with returned cursor.
-- Is there any solution for it?
-- Following is the sample query and procedure (in a package)
-- Query returns top 5 rows
select t.rank, t.productid, t.productname
from (
Select score(0) as rank, productid, productname
from Product
where status = 'A'
and contains(productname, 'Frog', 0) > 0
order by rank desc, productid
) t
where rownum < 6;
-- Proc Name: Pr_Test
-- 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);
END pkg_test;
CREATE OR REPLACE PACKAGE BODY pkg_test
AS
PROCEDURE pr_test
(i_searchstring IN VARCHAR2 ,
io_prdcursor IN OUT RCT1)
IS
BEGIN
OPEN io_prdcursor FOR
select t.rank, t.productid, t.productname
from (
Select score(0) as rank, productid, productname
from Product
where status = 'A'
and contains(productname, i_searchstring, 0) > 0
order by rank desc, productid
) t
where rownum < 6;
END pr_test;
END pkg_test;
-- Following is the error message when compiling the package body:
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
| |
-- Run the procedure and get the results
declare
i number := 0;
v_string varchar2(50) := 'CAT';
-- v_string varchar2(50) := 'FROG%';
v_RC1 pkg_test.RCT1;
v_Score NUMBER(10);
v_ProductID Product.ProductID%TYPE;
v_ProductName Product.ProductName%TYPE;
begin
pkg_test.pr_test (v_string, v_RC1);
LOOP
FETCH v_RC1 INTO v_Score,v_ProductID,v_ProductName;
EXIT WHEN (v_RC1%NOTFOUND);
DBMS_OUTPUT.put_line(substr('Score='| |v_score| |', ProdID='| |v_ProductID ,1,255));
i := i + 1;
END LOOP;
DBMS_OUTPUT.put_line('Total '| |i| |' records retrieved.');
end;
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 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,
ROW_NUMBER() OVER(
PARTITION BY P.SupplierID
ORDER BY P.UnitPrice DESC, P.ProductID DESC) AS RowNum
FROM dbo.Suppliers AS S
JOIN dbo.Products AS P
ON P.SupplierID = S.SupplierID
SELECT SupplierID, CompanyName, ProductID, UnitPrice
FROM C
WHERE RowNum <= 10
ORDER BY SupplierID, ProductID DESC, UnitPrice DESC;
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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Business Intelligence

Getting top record

Hi all
I'm writing a job using Data Services and need to get top 1 record in my query object. Unfortunately there is no other way, like Max or min doesn' mean to my senario. How can I get the first record like what we have in SQL Server as Select top 1 ....
Thanks for your help in advance.

Another option is to add a new column to your query transform, call it ROWNUM, and use gen_row_num() as the mapping.
Then add a second query transform and include "ROWNUM=1" in the where clause.
Make sure you include any sorting in the first query transform.
Manoj's SQL transform solution will probably be faster, but this one will work for any kind of data source, not just SQL Server.

How can i post the fields in the screen by selecting a record

Hi,
I have a problem in dialog programming.
I need to populate the fields in the screen by selecting a single record.
For example,
    Screen consists of 'CARRID, CONNID,FLDATE... fields.
    By pressing F4 in CARRID field it will display the contents from database table and display the records. If i select the record LH 0400 ... record then automatically the connid field should fill with the contents of the record i.e., 0400 and similarly the remaining fields.
   How can i do this in dialog programming?
   I tried with F4IF_INT_table_.. function module. There is a table parameter DYNmapping. But dont know how to use it? Can any body explain me how to use it?
   Thanks in advance..
   Suvan

Hi Vinod,
Thanks for your reply. I solved my problem. It is working with the table parameter 'DYNPFLD_MAPPING' in the function module 'F4IF_INT_TABLE_VALUE_REQUEST'.
With your logic we can't decide which record is selected. Because there can be multiple records for a single CARRID.
My question is how to post the entire record into the screen fields at a time? It is possible with the parameter I specified inthe above said function module.
With dictionary reference it will fetch the entire entries from the Check table.
Thanks again for your co-operation.
Suvan.<b></b>

How to add a checkbox to dynamic itab so that i can select some records

How to add a checkbox to dynamic itab so that i can select some records in the alv and can display them in another alv using a button
I have requirement where i have to display the dynamic itab records in an alv ....Some records from this alv output has to be selected through checkbox provided in the first column .( I will get to know the structure of the itab only at runtime ,so iam using dynamic itab)

Hi,
   I tried and finally i got it , Just try for it.
type-pools : slis.
PARAMETERS : p_tab type dd02l-tabname.
data : ref_tabletype type REF TO cl_abap_tabledescr,
       ref_rowtype TYPE REF TO cl_abap_structdescr.
field-symbols : <lt_table> type   standard TABLE ,
       <fwa> type any,
       <field> type abap_compdescr.
data : lt_fcat type lvc_t_fcat,
       ls_fcat type lvc_s_fcat,
       lt_fldcat type SLIS_T_FIELDCAT_ALV,
       ls_fldcat like line of lt_fldcat.
data : ref_data type REF TO data,
        ref_wa type ref to data.
ref_rowtype ?= cl_abap_typedescr=>DESCRIBE_BY_name( p_name = p_tab ).
TRY.
CALL METHOD cl_abap_tabledescr=>create
EXPORTING
    p_line_type = ref_rowtype
receiving
    p_result     = ref_tabletype.
CATCH cx_sy_table_creation .
write : / 'Object Not Found'.
ENDTRY.
*creating object.
create data ref_data type handle ref_tabletype.
create data ref_wa type handle ref_rowtype.
*value assignment.
ASSIGN ref_data->* to <lt_table>.
assign ref_wa->* to <fwa>.
loop at ref_rowtype->components ASSIGNING <field>.
ls_fcat-fieldname = <field>-name.
ls_fcat-ref_table = p_tab.
append ls_fcat to lt_fcat.
if lt_fldcat[] is INITIAL.
    ls_fldcat-fieldname = 'CHECKBOX'.
    ls_fldcat-checkbox = 'X'.
    ls_fldcat-edit = 'X'.
    ls_fldcat-seltext_m = 'Checkbox'.
    append ls_fldcat to lt_fldcat.
endif.
clear ls_fldcat.
ls_fldcat-fieldname = <field>-name.
ls_fldcat-ref_tabname = p_tab.
append ls_fldcat to lt_fldcat.
endloop.
loop at lt_fldcat into ls_fldcat.
if sy-tabix = 1.
    ls_fldcat-checkbox = 'X'.
    ls_fldcat-edit = 'X'.
modify lt_fldcat FROM ls_fldcat
    TRANSPORTING checkbox edit.
endif.
endloop.
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
    it_fieldcatalog           = lt_fcat[]
IMPORTING
    ep_table                  = ref_data.
assign ref_data->* to <lt_table>.
select * FROM (p_tab) into table <lt_table>.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
   IT_FIELDCAT                       = lt_fldcat[]
TABLES
    t_outtab                          = <lt_table>.
Thanks & Regards,
Raghunadh .K

List View selecting wrong record

Hi all,
I have placed a List view on my dashboard. i am using direct connection with BI and am populating the list view with the data retrieved from the connection. the problem is that when i launch the dashboard and select a record from the list view, it selects the record above the one on which i click. I want the list view the select the record which i click on. How do i rectify this.
regards,
hamza

Hi Hamza
Check all of your data insertion type and associated spreadsheet bindings.
Regards
Charles

How to select multiple records from a TREE in the table

HI,
I have a tree structure which is in the table.When I open the node of the tree,all the subnodes are coming as one-one records in the table.I want to slect multiple record from this table.I applied onLeadSelect for this table,I can select only 1 record from the table.
Can any one plz suggest me how to select multiple records from the table so that I can get all the data of those selected record.
Regards
-Sandip

Rashmi/Kukku,
First of all, Thanks for your help!
Is there any other way in which we can access tables other than using BAPIs or RFCs?
In my case, there is a table structure which has to be updated with values after validating a key. i don't think there is any RFC available now. do i need to create bapi/rfc for that?
Krishna Murthy

"record enable" buttons not showing up in Garage Band 10.0.3 (I have selected "show record enable"- a space in the track header opens up, but the button is not present. Same with "input moniter".

"record enable" buttons not showing up in Garage Band 10.0.3 (I have selected "show record enable"- a space in the track header opens up, but the button is not present. Same with "input monitor".

Look at all the posts in the forum from users with similar problems, it happened with the last Logic update.

Select Top Records

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