Menu
in my database I have this char �. I want to locate them with a query
Select *
from Sometable
where somecolumn like '%�%'
this gets me no result.
I think it is ANSI encoding
587
The second part of a SQL query is the name of the column you want to retrieve for each record you are getting. You can obviously retrieve multiple columns for each record, and (only if you want to retrieve all the columns) you can replace the list of them with * , which means "all columns".
SQL Server provides four system databases including master , msdb , model , and tempdb .
<> operator means not equal to in MS SQL. It compares two expressions (a comparison operator). When you compare nonnull expressions, the result is TRUE if the left operand is not equal to the right operand; otherwise, the result is FALSE. If either or both operands are NULL, see the topic SET ANSI_NULLS (Transact-SQL).
hierarchical database systems. network database systems. object-oriented database systems.
use N like below
where col like N'%�%'
why do you think ,you need N prefix:
Prefix Unicode character string constants with the letter N. Without the N prefix, the string is converted to the default code page of the database. This default code page may not recognize certain characters.
Thanks to Martin Smith,Earlier i tested only with one character earlier and it worked,but as Martin pointed out, it returns all characters..
Below query works and returns only intended
select * from #demo where id like N'%�%'
COLLATE Latin1_General_100_BIN
Demo:
create table #demo
(
id nvarchar(max)
)
insert into #demo
values
(N'ﬗ'),
( N'�')
to know more about unicode,please see below links
http://kunststube.net/encoding/
https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses/
129
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
