私はOracleを初めて使用し、次の問題が発生しました。テーブルからクエリを実行するために、スキーマ名とテーブル名を二重引用符で囲む必要があるのはなぜですか?変更する設定はありますか?
ありがとう。
SQL> conn sys/ogrish@orcl as sysdba
Connected.
SQL> show user
USER is "SYS"
SQL> select * from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for 64-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
SQL> select * from m.album;
select * from m.album
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from M.Album where rownum < 2;
select * from M.Album where rownum < 2;
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from "M"."Album" where rownum < 2;
AlbumId Title
---------- ----------------------------------------------------------------------
1 For Those About To Rock We Salute You
SQL> conn m/m@orcl
Connected.
SQL> select table_name from user_tables;
TABLE_NAME
------------------------------
Album
Artist
Customer
Employee
Genre
Invoice
InvoiceLine
MediaType
Playlist
PlaylistTrack
sysdiagrams
TABLE_NAME
------------------------------
Track
12 rows selected.
SQL> select * from album where rownum < 2;
select * from album where rownum < 2;
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from Album where rownum < 2;
select * from Album where rownum < 2
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from m.album where rownum < 2;
select * from m.album where rownum < 2
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from M.Album where rownum < 2;
select * from M.Album where rownum < 2
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from "M"."Album" where rownum < 2;
AlbumId Title
---------- ----------------------------------------------------------------------
1 For Those About To Rock We Salute You
SQL> select * from "Album" where rownum < 2;
AlbumId Title
---------- ----------------------------------------------------------------------
1 For Those About To Rock We Salute You
SQL>