Andrei wrote:
3. Oracle You can add and subtract number constants as well as other dates from dates. Oracle interprets number constants in arithmetic date expressions as numbers of days. For example, SYSDATE + 1 is tomorrow. SYSDATE - 7 is one week ago. SYSDATE + (10/1440) is ten minutes from now. Subtracting the hiredate column of the sample table employees from SYSDATE returns the number of days since each employee was hired. You cannot multiply or divide DATE values."
Один в один как в FB. Где ты тут углядел преобразование даты в целое?
4. PostgreSQL http://www.postgresql.org/docs/techdocs.13 цитата: "Q. Where are the DATEADD and DATEDIFF functions in PostgreSQL? A. There are none. PostgreSQL does not need them. Use the + and - operators instead. "
Тоже самое. -- Дмитрий Еманов
