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Tag Archives: rowid
外部表的ROWID信息
ROWID是访问数据库中表的物理地址信息,Oracle提供了ROWID伪列,可以通过ROWID直接访问表中的数据。 ROWNUM固化外部表结果集存在问题:https://yangtingkun.net/?p=38 ROWNUM固化外部表结果集存在问题(二):https://yangtingkun.net/?p=103 在测试外部表时,意外发现,外部表同样存在ROWID伪列: SQL> CREATE directory d_alert AS ‘D:\ORACLE\PRODUCT\ADMIN\YTK102\BDUMP’; 目录已创建。 SQL> CREATE TABLE t_alert 2 (text varchar2(1000) 3 ) 4 organization external 5 (TYPE oracle_loader 6 DEFAULT directory d_alert 7 access parameters 8 (records delimited BY newline 9 FIELDS … Continue reading