设置service_names如果超过255个字符，就会报错ORA-32021: parameter value longer than 255 characters，
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SQL> ALTER SYSTEM SET SERVICE_NAMES='oracleblog.org, jimmy.oracleblog.org, jimmy.he.oracleblog.org, hejianmin.oracleblog.org, he.jian.min.oracleblog.org, jimmy_he_oracleblog.org, jimmy_he_he.jian_min.oracleblog.org, jian_min_he.jimmy.oracleblog.org, jimmy.he.he_jianmin.oracleblog.org, jimmyhe_hejianmin.oracleblog.org, jimmy.he.he.jianmin.oracleblog.org' scope=both; ALTER SYSTEM SET SERVICE_NAMES='oracleblog.org, jimmy.oracleblog.org, jimmy.he.oracleblog.org, hejianmin.oracleblog.org, he.jian.min.oracleblog.org, jimmy_he_oracleblog.org, jimmy_he_he.jian_min.oracleblog.org, jian_min_he.jimmy.oracleblog.org, jimmy.he.he_jianmin.oracleblog.org, jimmyhe_hejianmin.oracleblog.org, jimmy.he.he.jianmin.oracleblog.org' scope=both * ERROR at line 1: ORA-32021: parameter value longer than 255 characters SQL> |
虽然可以通过dbms_service包来创建和修改service […]