How do I make wildcards work in a like operator in

问题:

I have added a filter expression using the like operator. What do I put in the value field? my parameter is named @test and I'd like the filter to function as a like %@test% would in SQL. I want it to act like %@test% so I can pass '' to get all values for the query.

回答1:

I got this to work by adding a filter expression with a like operator and setting the value to this:

="*" + Parameters!Roles.Value + "*"

To get all values I pass ''.

回答2:

You could also simply use string concatenation in the original Dataset that you want to filter on. You can access the parameters in the same manner as SQL:

WHERE fieldname LIKE '%' + @test + '%'

You can then link the report parameter @test to the @test in the dataset via the parameters option on Dataset Properties.

回答3:

You should use this Query in the DATA SECCTION of the REPORT WIZARD.

SELECT * FROM HR.JOBS WHERE JOB_TITLE LIKE  :JOB_TITLE | |'%'

回答4:

you could use this simple query.

WHERE fieldname LIKE CONCAT('%',@test,'%')

Used CONCAT