当我尝试将数据加载到确实存在的表中时，我遇到了 SQL Loader 的问题。但是，由于某种原因，SQL Loader 返回错误。如果这意味着什么，该表位于可插入数据库中，我不确定但想将其包含在此处的帖子中，以防它有助于找出挂断的位置。
这是控制文件：
OPTIONS (SKIP=1)
LOAD DATA
INFILE '/home/joshua/Practice_Data/Fitness_DB_Data/aug_2019_hiking_stats.csv'
INSERT INTO TABLE WALKING_STATS
FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY '"'
(day_walked,cal_burned,miles_walked,duration,mph,shoe_id)
我尝试了INTO TABLE三种不同的子句：只有表名（如本例所示）和模式名（例如，C##bigdaddy.walking_stats），以及带有前缀的 pdb（例如，walking_data.c##bigdaddy .walking_stats）。
一切都无济于事。
一些用于证明该表确实存在的 SQL 命令（至少我是 Oracle DB 的新手）：
这是 pdb：
SQL> sho con_name;
CON_NAME
------------------------------
WALKING_DATA
用户架构在那里：
SQL> select user from dual;
USER
--------------------------------------------------------------------------------
C##BIGDADDY
桌子在那里，尽管它是空的：
SQL> desc walking_stats;
Name Null? Type
----------------------------------------- -------- ----------------------------
DAY_WALKED DATE
CAL_BURNED NUMBER(4,2)
MILES_WALKED NUMBER(3,2)
DURATION TIMESTAMP(6)
MPH NUMBER(2,1)
SHOE_ID NUMBER
SQL> select count(*) from walking_stats;
COUNT(*)
----------
0
TAB视图显示它：
SQL> select * from tab;
TNAME TABTYPE CLUSTERID
------------------------- ------------- ----------
WALKING_STATS TABLE
显示user_tables它并且它是有效的：
SQL> select table_name, status from user_tables where table_name = 'WALKING_STATS';
TABLE_NAME STATUS
------------------------- --------
WALKING_STATS VALID
该all_objects表还显示：
SQL> select owner, object_name, object_type, status from all_objects where owner = 'C##BIGDADDY';
OWNER OBJECT_NAME OBJECT_TYPE STATUS
--------------- --------------- --------------- ---------------
C##BIGDADDY WALKING_STATS TABLE VALID
SQL> select owner, object_name, object_type, status from all_objects where object_name = 'WALKING_STATS';
OWNER OBJECT_NAME OBJECT_TYPE STATUS
--------------- --------------- --------------- ---------------
C##BIGDADDY WALKING_STATS TABLE VALID
以下是 csv 数据文件的前几行：
day_walked,cal_burned,miles_walked,duration,mph,shoe_id
2019-08-01,358.1,3.53,01:05:51,3.2,6
2019-08-02,354.7,3.46,01:05:12,3.2,6
2019-08-04,354.2,3.55,01:05:07,3.3,6
2019-08-05,351.3,3.52,01:04:36,3.3,6
最后在命令行上运行带有文件路径位置参数的 sqlldr 命令，同时使用sys和C##BIGDADDY用户（它们都对表具有 INSERT 权限）：
sys 用户不起作用：
joshua@linux-t1zu:~> sqlldr control='/home/joshua/Practice_Data/Fitness_DB_Data/upload_stats.ctl'
Username:sys as sysdba
Password:
SQL*Loader: Release 18.0.0.0.0 - Production on Sun Oct 6 07:43:05 2019
Version 18.4.0.0.0
Copyright (c) 1982, 2018, Oracle and/or its affiliates. All rights reserved.
Path used: Conventional
SQL*Loader-941: Error during describe of table WALKING_STATS
ORA-04043: object WALKING_STATS does not exist
用户 C##BIGDADDY 也没有：
joshua@linux-t1zu:~> sqlldr control='/home/joshua/Practice_Data/Fitness_DB_Data/upload_stats.ctl'
Username:C##BIGDADDY
Password:
SQL*Loader: Release 18.0.0.0.0 - Production on Sun Oct 6 07:44:52 2019
Version 18.4.0.0.0
Copyright (c) 1982, 2018, Oracle and/or its affiliates. All rights reserved.
Path used: Conventional
SQL*Loader-941: Error during describe of table WALKING_STATS
ORA-04043: object WALKING_STATS does not exist
对于我的生活，我无法弄清楚我哪里出错了。非常感谢任何想法或想法。我正在使用安装在 openSuse Leap 15.0 上的 Oracle 18c XE，如果有帮助的话。先感谢您。
编辑：
我发现的两件事可能有帮助（或没有帮助）。首先如下图，SYS用户不能直接连接pdb，但是alter session连接root容器后可以运行并设置容器给它。但是，表格walking_stats对SYS用户不可见：
joshua@linux-t1zu:~> sqlplus SYS/password_here@WALKING_DATA
SQL*Plus: Release 18.0.0.0.0 - Production on Sun Oct 6 10:39:38 2019
Version 18.4.0.0.0
Copyright (c) 1982, 2018, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
Enter user-name: SYS AS SYSDBA
Enter password:
Connected to:
Oracle Database 18c Express Edition Release 18.0.0.0.0 - Production
Version 18.4.0.0.0
SQL> sho con_name;
CON_NAME
------------------------------
CDB$ROOT
SQL> alter session set container = WALKING_DATA;
Session altered.
SQL> sho con_name;
CON_NAME
------------------------------
WALKING_DATA
SQL> select user from dual;
USER
--------------------------------------------------------------------------------
SYS
SQL> DESC WALKING_STATS;
ERROR:
ORA-04043: object WALKING_STATS does not exist
SQL> select * from tab where tname ='WALKING_STATS';
no rows selected
与 user 几乎相同的事情C##BIGDADDY：
joshua@linux-t1zu:~> sqlplus C##BIGDADDY/password_here@WALKING_DATA
SQL*Plus: Release 18.0.0.0.0 - Production on Sun Oct 6 10:48:36 2019
Version 18.4.0.0.0
Copyright (c) 1982, 2018, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
Enter user-name: C##BIGDADDY
Enter password:
Last Successful login time: Sun Oct 06 2019 07:45:07 -05:00
Connected to:
Oracle Database 18c Express Edition Release 18.0.0.0.0 - Production
Version 18.4.0.0.0
SQL> sho con_name;
CON_NAME
------------------------------
CDB$ROOT
SQL> alter session set container = WALKING_DATA;
Session altered.
SQL> sho con_name;
CON_NAME
------------------------------
WALKING_DATA
SQL> desc walking_stats;
Name Null? Type
----------------------------------------- -------- ----------------------------
DAY_WALKED DATE
CAL_BURNED NUMBER(4,2)
MILES_WALKED NUMBER(3,2)
DURATION TIMESTAMP(6)
MPH NUMBER(2,1)
SHOE_ID NUMBER
SQL> select count(*) from walking_stats;
COUNT(*)
----------
0
但是，用户C##BIGDADDY可以从表中查看和选择walking_stats。