php + mysql：将一行从一个表复制到另一个表

Question

I'm having two tables table (fieldA, fieldB, fieldC) and log_table (id, fieldA, fieldB, fieldC). Is it possible to copy a row from table to log_table with one (not two: select and insert) query?

Thank you in advance!

Answer 1

您可以使用单个INSERT语句传递SELECT查询，而不是常量值列表：

INSERT INTO log_table (SELECT fieldA, fieldB, fieldC FROM table)

Answer 2

I am not sure what you want. But maybe something like this:

INSERT INTO log_table( fieldA, fieldB, fieldC)
SELECT fieldA, fieldB, fieldC FROM table