WebAug 6, 2024 · drop table (oracle 10g)命令并不真正删除表,在内部被映射为rename命令,即是将其重命名之后放入回收站。 二、理解表重名的过程 scott@ORCL> create table … WebFor a table to be recoverable using Flashback Drop, it must reside in a locally managed tablespace. Also, you cannot recover tables in the SYSTEM tablespaces with Flashback Drop, regardless of the tablespace type. This section contains the following topics: Dropping a Table Retrieving a Dropped Table Page 276 of 340 English
Flashback Table in Oracle Explained With Examples - DZone
WebTo flash back a table to before a DROP TABLE operation, you need only the privileges necessary to drop the table. Syntax flashback_table::= Description of the illustration flashback_table.gif Semantics During an Oracle Flashback Table operation, Oracle Database acquires exclusive DML locks on all the tables specified in the Flashback list. Webflashback table e to before drop SQL> SQL> SQL> create table emp 2 ( empno NUMBER(4) constraint E_PK primary key 3 , ename VARCHAR2(8) 4 , init … reaching peak emissions
FLASHBACK TABLE BEFORE DROP - Alibaba Cloud
WebOct 2, 2013 · CREATE TABLE flashback_table_test ( id NUMBER CONSTRAINT pk_flashback_table_test PRIMARY KEY ); DROP TABLE flashback_table_test; FLASHBACK TABLE flashback_table_test TO BEFORE DROP; I think you will need to flash it back using some SCN number prior to the number when you manually recreated … WebApr 6, 2024 · EMPLOYEES table by using the command: SQL> FLASHBACK TABLE HR.EMPLOYEES TO BEFORE DROP; What are three prerequisites for this command to succeed? A. Undo retention guarantee must be enabled. B. No other table with the same name should exist in the HR schema. C. SCOTT should have the FLASHBACK ANY … WebDec 9, 2024 · FLASHBACK TABLE {テーブル名} TO BEFORE DROP; ↑ごみ箱から削除したテーブルを復活させる PURGE RECYCLEBIN; ↑ごみ箱を完全消去 DROP TABLE {テーブル名} PURGE; ↑ごみ箱を経由せずに完全にテーブルを削除する ALTER:定義したオブジェクトの内容を変更する -テーブルに関する様々な事に対して変更を行うことができま … reaching peak