Question

I have the following query:

Select 
Count(Distinct Case When Play.Uuid Like ('i~%') Then Tap.Player_Id End) As Tapjoy_Ios
From
Player_Tapjoy Tap
Inner Join 
Player Play 
On 
Tap.Player_Id = Play.Player_Id
Where 
Trunc(Tap.Create_Dtime) >= To_Date('2012-Jan-01','yyyy-mon-dd')

I want to add another like constrain so that the result comes out where play.uuid like (‘i~%’ or ‘ti~%’)..but that doesn’t seem to work. How could I implement this?

Answer 1

You need two full LIKE clauses connected by a logical OR, each having both the left and right sides of the LIKE keyword (column on the left, string value on the right).

count(Distinct Case When (Play.Uuid Like 'i~%') OR (Play.Uuid LIKE 'ti~%') Then Tap.Player_Id End) As Tapjoy_Ios

You could also do this with a single REGEXP_LIKE, using the regular expressiong ^t?i~.+:

count(Distinct Case When REGEXP_LIKE(Play.Uuid, '^t?i~.+') Then Tap.Player_Id End) As Tapjoy_Ios

• ^ is the start of the string
• t? is an optional t
• i~ is literal
• .+ is any remaining characters, equivalent to % in a regular LIKE.