Oracle: merging two different queries into one, LIKE & IN

Question

I need to implement a search query, where we have multiple filters(values) for a single column in database(oracle). But these multiple filters(values) are LIKE quer

Answer 1

As was already commented, it is better and simpler to just concatenate several conditions:

where departmentName like '%Medi%'
   or departmentName like '%Ciga%'
   or departmentName like '%Tabacc%';

Another way is to insert those values '%Medi%', '%Ciga%' and '%Tabacc%' into a conditionTable, and then run this query:

select department.*
  from department
 cross join conditionTable
 where department.departmentName like conditionTable.value;

I am assuming here that your table is department and that the conditionTable has a column value. If you implement this solution, you should care about concurrency, and filter conditionTable by something like

select department.*
  from department
 inner join conditionTable on conditionTable.session = yourSessionId
 where department.departmentName like conditionTable.value;

Finally, a third solution that might be handy, if you dont want to use a conditionTable, is to generate a string select <cond1> as value from dual union select <cond2> from dual... and placed into a dynamic query as

select department.*
  from department
 cross join
   (select '%Medi%' as value from dual
     union
    select '%Ciga%' from dual
     union
    select '%Tabacc%' from dual) conditionTable
 where department.departmentName like conditionTable.value;