how to replace last letter of my column

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SQL-Server-2008R2

hi

I am using following query for remove last latter from my column

update Table_Name set Column_Name=(select left(Column_Name,LEN(Column_Name)-1) as Lat
from Table_Name a where Column_Name like '%N') where Column_Name like '%N'

it gives an following Error
Please Help me.

<pre lang="xml">Msg 512, Level 16, State 1, Line 1
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, &lt;, &lt;= , &gt;, &gt;= or when the subquery is used as an expression.
The statement has been terminated.</pre></pre>

Posted 7-Apr-15 2:17am

Shrikesh_kale

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Corporal Agarn 7-Apr-15 14:14pm

The reason for the error is you are trying to put multiple values into one record. See OriginalGriff's solution for a better way to do this. If you must use an inline then there is a lot of work to get only the one value you want.

Slacker007 7-Apr-15 14:15pm

Are there any applications that will need to be refactored, as well? I am curious as to why you have column names that need the last letter removed? Was this a test of some sort?

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OriginalGriff · Accepted Answer · 2015-04-07T02:30:00

Solution 1

Why not just use

SQL

UPDATE Table_name SET Column_Name = LEFT(Column_Name, LEN(Column_Name) - 1)
WHERE Column_Name LIKE '%N'

[edit]Missed out a "_"[/edit]

Posted 7-Apr-15 2:30am

OriginalGriff

Updated 7-Apr-15 2:35am

v2