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Replace


Replace

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chandrasekaran.ganapathy
chandrasekaran.ganapathy
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Hi

Consider this table

Man_name Model

Motorola MotoQ
Motorola RAZR2
Nokia N73
Nokia 6100
Samsung C118


I have used Distinct Statement to retrieve the value.
Now I want to replace if the Man_Name comes 2nd time then I need to replace that value with "Blank".

Is it possible to do this?
Kingston Dhasian
Kingston Dhasian
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; WITH cteTableName AS
(
SELECT ROW_NUMBER() OVER( PARTITION BY Man_name ORDER BY Model ) RowNum, *
FROM TableName
)

SELECT CASE WHEN RowNum > 1 THEN '' ELSE Man_name END Man_name, Model
FROM cteTableName



This should do it for you..


Kingston Dhasian

How to post data/code on a forum to get the best help - Jeff Moden
http://www.sqlservercentral.com/articles/Best+Practices/61537/
Adi Cohn
Adi Cohn
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How do you define which record is the second record? When you have 2 values do you have a rule that according to it you know which one to update and which record to leave as it is? Assuming that you do it by a key, here is a small example of how to do it:

use tempdb
go

declare @tbl table (id int not null primary key, vc varchar(10))

insert into @tbl (id, vc)
select 1, 'aaa'
union
select 2, 'bbb'
union
select 3, 'aaa'
union
select 4, 'aaa'
union
select 5, 'ccc';


with NotToUpdate as(
select MIN(id) as id, vc
from @tbl
group by vc)
update t
set t.vc = ''
from @tbl t left join NotToUpdate NTU on t.id = NTU.id
where NTU.id is null

select * from @tbl



Adi

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chandrasekaran.ganapathy
chandrasekaran.ganapathy
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Hi Kingston,

It is working. Just give me small explanation how this code is working..... If you explain it would be great help.
chandrasekaran.ganapathy
chandrasekaran.ganapathy
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You are spliting the data by Partition and assigning row numbers.

After that for row_number> 1 you are assiging blank right.

Is my understanding is correct?
Kingston Dhasian
Kingston Dhasian
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You are right:-)


Kingston Dhasian

How to post data/code on a forum to get the best help - Jeff Moden
http://www.sqlservercentral.com/articles/Best+Practices/61537/
chandrasekaran.ganapathy
chandrasekaran.ganapathy
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Thanks Kingston..

Meet you with another problem.....

Bye!!!
shobanapraveen
shobanapraveen
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Hi Friends,

replace('$filter', 'itime', 'am.itime')

Can any one help with replace command?

This statement is not getting replaced.

Thanks
Shobana
mahmad_khoja
mahmad_khoja
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Hi,

Here '$filter' word does not contains 'itime' thats why it is not being replaced.

Check below statement for your reference.

select REPLACE('abcdef','ef','EF')
shobanapraveen
shobanapraveen
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Thanks for your immediate reply.................



in $filter they are using conditions like itime>= and itime<=......



select distinct split_part(split_part(cp.msg, 'src=',1),',',1),split_part(split_part(cp.msg, 'user=''',2),',',1) as user ,am.itime,am.dtime,am.url from "FGT60B3908669009-wlog-1380091698" am join "SYSLOG-C0A80A41-glog-1380347892" cp on cast(am.src as character varying)=cast((split_part(split_part(cp.msg, 'src=',2),',',1) ) as character varying) where am.src='192.168.10.23' and replace('$filter', 'itime', 'am.itime')


This is my query......

if the user what 1 day reports it takes long time for querying because of large data..... so i want to replace itime with my am.itime in $ filter............


for more details pls come online in gmail.(shobanapraveen80@gmail.com)


Thanks,
Shobana
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