select * from table_name where column like '&nbsp'

Question

I need to find records containing html code such as '&nbsp' But when I try to run the select * from table_name where column like '&nbsp%' I got prompt asking for the value of nbsp. I guess the database thinks that nbsp is a parameter. I am wondering if the is an escape character so that I can tell the database that "&" is part of my query string. I tryed '\\&nbsp' but didn't work.

My environment is Oracle 9i with sqlplus client.

Thanks.

Answer 1

Have a look at this:

SQL Plus FAQ

eg

SET ESCAPE '\'
SELECT '\&abc' FROM dual;

Answer 2

Easier way:

SET DEFINE OFF

See: SET DEFINE

Answer 3

反斜杠应该可以工作，但我认为你需要开始查询

SET ESCAPE ON

Answer 4

In PL/SQL, you would use:

BEGIN select <Column> from <Table_name> into <Variable> where <Column> LIKE '\\&nbsp\\%' ESCAPE '\\'; END /

Resources:

Wilcards in SQL on PSOUG.org

LIKE Condition in Oracle® Database SQL Language Reference 11g Release 2 (11.2)