Multiple SQL Insert does not work if one of the rows does not fall under the unique index condition.?

Question

SQL

There is a unique index on several columns (Name, Datetime). I periodically make a request to another service and enter data into my table. I form a multiple Insert query, and first all the data is entered, and then when updating from the service, part of the data is the same and I enter the data into the table, but since the unique index blocks the entry, the entire query does not work.
I want to insert only those rows that are new. Those that have not changed, do not insert.
Example - I monitor the number of products :)) on the service

яблоки  29.10.2017 18:00:00 20(тонн)
    груши   29.10.2017 18:00:10 60(тонн)

In a minute

яблоки  29.10.2017 18:01:00 1000(тонн)  //ИЗМЕНИЛОСЬ
    груши   29.10.2017 18:00:10 60(тонн)    //не ИЗМЕНИЛОСЬ- тоже отправлять на вставку,но эта строка не отработает из за уникального индекса

then again I update and it is necessary to insert only those that were not there.

Answer 1

What dialect of SQL?
For MySQL - INSERT IGNORE or INSERT ... ON DUPLICATE KEY UPDATE

Answer 2

If Oracle - MERGE
www.sql.ru/blogs/oracleandsql/1927