CodePudding user response:
Garbage in, Garbage out (waste can only waste),According to the Oracle documentation, https://docs.oracle.com/database/121/NLSPG/ch2charset.htm#NLSPG1037:
The Oracle database character set name: US7ASCII
Description: the U.S. 7 - bit ASCII
Region: US
Each character a few (bits) : 7
Name of the standard character set: ASCII
US7ASCII does not support Chinese,