Oracle use LIKE '%' on DATE

Question

My table myTab has the column startDate, which has the datatype \"DATE\". The data in this column are stored like dd.mm.yyyy.

Answer 1

Regarding you actual question "Somehow it doesn't work and I don't know why."

Oracle make an implicit conversion from DATE to VARHCAR2, however it uses the default NLS_DATE_FORMAT which is probably different to what you use in your query.