connect_string
$ORACLE_HOME/network/admin/tnsnames.ora
ORCLPDB

Databaseサンプル・スキーマ
https://docs.oracle.com/cd/E96517_01/comsc/installing-sample-schemas.html#GUID-B0BEE222-D8B0-4B68-B359-DEA153956EF6
https://docs.oracle.com/cd/F19136_01/comsc/index.html#Oracle(R)-Database
https://github.com/oracle-samples/db-sample-schemas/releases/tag/v19.2
0)
db-sample-schemas-19.2.zip解凍
useradd HR
useradd OE

1) DBサーバに以下のディレクトリを作成後、スクリプトを配置
__SUB__CWD__
2) LISTENER起動
3) DB OPEN
4) alter pluggable database ORCLPDB open;
5)
cd /
sqlplus / as sysdba @__SUB__CWD__/mksample.sql dba dba dba dba dba dba dba dba users temp /__SUB__CWD__/human_resources/log ORCLPDB