Hi,
I have an sql database that has the primary key set to three fields,
but has not been set as unique(I didn't create the table).
I have 1 record that has 2 duplicates and I am unable to delete the
duplicate entries.
If I try to delete any of the three records(they are identical) I get
the message 'key column is insufficient or incorrect. Too many rows
were affected by update'.
I am trying to do this within Enterprise Mgr.
Any suggestion?
Thanks much
2  7149 
Hi,
go to Query Analyzer, and
set rowcount 1
delete from mytable .. where key1=..., key2=.. , key3=..
this will get rid of one row only.
To fix the whole table, you could do the following:
sp_rename mytable, oldtable
go
create mytable(... copy of mytable.. )
....
go
insert into mytable(...)
select DISTINCT.. all the columns from oldtable
go
drop table oldtable
go
hope this helps,
Lucjan
"Barbara" <ba************ ***@cph-inc.com> wrote in message
news:c6******** *************** ***@posting.goo gle.com... Hi,
I have an sql database that has the primary key set to three fields,
but has not been set as unique(I didn't create the table).
I have 1 record that has 2 duplicates and I am unable to delete the
duplicate entries.
If I try to delete any of the three records(they are identical) I get
the message 'key column is insufficient or incorrect. Too many rows
were affected by update'.
I am trying to do this within Enterprise Mgr.
Any suggestion?
Thanks much
"Barbara" <ba************ ***@cph-inc.com> wrote in message
news:c6******** *************** ***@posting.goo gle.com... Hi,
I have an sql database that has the primary key set to three fields,
but has not been set as unique(I didn't create the table).
I have 1 record that has 2 duplicates and I am unable to delete the
duplicate entries.
If I try to delete any of the three records(they are identical) I get
the message 'key column is insufficient or incorrect. Too many rows
were affected by update'.
I am trying to do this within Enterprise Mgr.
Any suggestion?
Thanks much
Some front end tools (possibly including Enterprise Manager) cannot modify
data in a table without a primary key, because they cannot know which row(s)
they are affecting. You should be able to use Query Analyzer to delete two
of the rows:
set rowcount 2
delete MyTable
where pkcol1 = 1 and pkcol2 = 2 and pkcol3 = 3
set rowcount 0
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