oracle11g - Underscore is not working in oracle like clause

Question

When development, I used 'test_1%' to find 'test_123' in like. But in production environment its not working. Using 'escape ''' is working. is there any setting needs to set in oracle? I want to use without escape '''.

Answer 1

try this in SQL Developer:

SELECT * FROM TABLE1 WHERE NAME LIKE 'test\_1%' escape ''

in sql plus:

set escape ''
SELECT * FROM TABLE1 WHERE NAME LIKE 'test\_1%';