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update statement error

Author

Topic

qutesanju
Posting Yak Master

193 Posts

Posted - 2010-08-16 : 05:15:58

hi experts
I'm firing an update statement in a table
UPDATE [dbo].[LOC_XREF]
set
[KC_LOC_XREF_MES_MACHI_CHR] = '2028BILGNM09'
WHERE [ENTY_KEY] ='102166793'

however i'm getting an error as
Cannot insert duplicate key row in object 'dbo.LOC_XREF' with unique index 'ix_LOC_XREF_1'.

how to resolve this issue?

vaibhavktiwari83
Aged Yak Warrior

843 Posts

Posted - 2010-08-16 : 05:22:08

This update statement is about to change data that combination is already exists.
and that is not possible because with that key column unique index is created.

Vaibhav T

To walk FAST walk ALONE
To walk FAR walk TOGETHER

qutesanju
Posting Yak Master

193 Posts

Posted - 2010-08-16 : 07:34:25

i deleted that entry completely and tried inserting fresh one
but it says
Cannot insert duplicate key row in object 'dbo.KC_LOC_XREF' with unique index 'ix_kc_loc_xef_1'.

GilaMonster
Master Smack Fu Yak Hacker

4507 Posts

Posted - 2010-08-16 : 07:43:45

What's the definition of the unique index ix_kc_loc_xef_1?
How many rows will that update affect?

--
Gail Shaw
SQL Server MVP

qutesanju
Posting Yak Master

193 Posts

Posted - 2010-08-16 : 08:46:22

index name ix_kc_loc_xef_1 is nonclustered, unique located on PRIMARY
and index keys are
LOC_XREF_MES_DATAB_CHR, LOC_XREF_MES_MACHI_AREA_CHR, LOC_XREF_MES_MACHI_CHR, LOC_XREF_MES_SYSTE_CHR

GilaMonster
Master Smack Fu Yak Hacker

4507 Posts

Posted - 2010-08-16 : 09:29:41

How many rows will that update affect?

--
Gail Shaw
SQL Server MVP

qutesanju
Posting Yak Master

193 Posts

Posted - 2010-08-16 : 11:34:31

for search criteria this shuld update only one row

X002548
Not Just a Number

15586 Posts

Posted - 2010-08-16 : 11:40:18

Do you understand about unique indexes and Alternate keys?

Runs this...


SELECT LOC_XREF_MES_DATAB_CHR, LOC_XREF_MES_MACHI_AREA_CHR, LOC_XREF_MES_MACHI_CHR, LOC_XREF_MES_SYSTE_CHR
  FROM [dbo].[LOC_XREF]
 WHERE [ENTY_KEY] ='102166793'

Brett

8-)

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