How to select the last items of a string

Hi guys

I use the RS232 UART Protocol and I need to calculate the checksum. My data came in decimal form and in the end, it must be duplicated to handle. So my problem is, for example, the sum of all elemants is decimal 1742 in hexadecimal is 6CE and I used only the last two elemants, which corresponds to 206, which is the result of my check. Can someone help me?

Thank you

Tags: NI Software

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for example:
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Hi guys,.
I have a table named INOUT with following columns

EMPLOYEECODE VARCHAR2
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This is called a Query Top - N , you want to choose elements of N (N = 20, in this case) from the top of a sorted list.
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```
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)
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,     r_num               -- If wanted
FROM     got_r_num
WHERE     r_num     <= 20
;
```
That actaully could take more than 20 people: If there be a tie, it includes any person who is entitled to be in the top 20. If you want exactly 20 people, then add the columns of tiebreaker to analytical or use ROW_NUMBER instead of RANK ORDER BY clause.

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Name         Type         Nullable Default Comments 
------------ ------------ -------- ------- -------- 
LEAVEDATE    DATE                                   
EMPLOYEECODE VARCHAR2(8)                            
LEAVETYPE    VARCHAR2(4)                            
APPROVEDBY   VARCHAR2(8)  Y                         
FEEDBY       VARCHAR2(8)  Y                         
FEEDTIME     DATE         Y                         
REMARKS      VARCHAR2(50) Y

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----------- ------------ --------- ---------- -------- ----------- --------------------------------------------------
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kindly Guide

concerning

Hello

Use DENSE_RANK() rather than ROW_NUMBER().

with mytable
as
(
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select 'dddFund', to_date('08-MAY-10','dd-mon-rr'), 12 from dual union all
select 'abcFund', to_date('08-MAY-10','dd-mon-rr'), 12 from dual union all
select 'edfFund', to_date('08-MAY-10','dd-mon-rr'), 12 from dual union all
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)
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Courtesy: Rob SQL
* 009 *.

Published by: 009 on May 6, 2010 05:01

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How to select the last record in a history table? the example data is
< p >
Product EffectiveDate

prod1 01/01/1980

prod1 01/01/1990

prod1 01/01/2000

prod2 02/02/1980

prod2 02/02/2000
< /p >
< p >

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Product EffectiveDate

prod1 01/01/2000

prod2 02/02/2000
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```
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```
should work.

Justin

Published by: Justin cave on October 30, 2008 18:32

Formatting changes

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everything built in function or in any other way please

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assuming that the entry contains only numbers, as in the example, the addition of 7 spaces to the left and selecting the 7 last characters toured:

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(select col1 from column_value

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(dbmsoutput_linesarray

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```
select serial from tab_42 where employeecode='00001'  and rownum<=10 order by serial desc;
```
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```
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```

How to select the last items of a string

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