spring data oracle - non-numeric character was found - sql

Question

I have the table disponibility with this columns.
I created the below query
#Query(nativeQuery = true, value = "select count(*) from disponibility d WHERE d.fk_room = ?1 "
+ "AND ((d.starthour < ?2 AND ?2 < d.endhour) OR (d.starthour < ?3 AND ?3 < d.endhour)) "
+ "AND ((d.startdate < TO_DATE(?4, 'dd/MM/yyyy') AND TO_DATE(?4, 'dd/MM/yyyy') < d.enddate) OR (d.startdate < TO_DATE(?5, 'dd/MM/yyyy') AND TO_DATE(?5, 'dd/MM/yyyy') < d.enddate))")
int checkUnicityRoom(String roomId, int startHour, int endHour, Date startDate, Date endDate);
return this error
ORA-01858: a non-numeric character was found where a numeric was expected

Answer 1

You entered a date value which isn't really a date. See the demonstration:
This is OK:
SQL> select to_date('15/02/2021', 'dd/mm/yyyy') today from dual;
TODAY
----------------
15.02.2021 00:00
But this isn't (note ab in the place of the month):
SQL> select to_date('15/ab/2021', 'dd/mm/yyyy') today from dual;
select to_date('15/ab/2021', 'dd/mm/yyyy') today from dual
*
ERROR at line 1:
ORA-01858: a non-numeric character was found where a numeric was expected
SQL>
I don't know which values you used, but - check what you're passing to the TO_DATE function.
As you commented that value you use is Wed Apr 11 01:00:00 CET 2018, it is obviously different from dd/MM/yyyy format mask you used along with the TO_DATE function. These two must match.
In your case:
SQL> select to_timestamp_tz('Wed Apr 11 01:00:00 CET 2018', 'Dy Mon dd hh24:mi:ss TZR yyyy') datum
2 from dual;
DATUM
---------------------------------------------------------------------------
11.04.18 01:00:00,000000000 CET
SQL>
As table column's datatype is DATE you should
SQL> select cast(to_timestamp_tz('Wed Apr 11 01:00:00 CET 2018', 'Dy Mon dd hh24:mi:ss TZR yyyy') as date) datum
2 from dual;
DATUM
----------------
11.04.2018 01:00
SQL>