Oracle/ Oracle Database/ Release 23 SQL Language Reference Purpose Use theDROPTABLEstatement to move a table or object table to the recycle bin or to remove the table and all its data from the database entirely. Note: Unless you specify thePURGEclause, theDROPTABLEstatement does not result ...
Oracle Database has two types of temporary table: global (GTT) and private (PTT).Global Temporary Tables (GTT)The syntax to create a global temporary table is:Copy code snippet Copied to Clipboard Error: Could not Copy Copied to Clipboard Error: Could not Copy create global temporary ta...
DROP DATABASE my_database; DROP TABLE my_table; DROP INDEX my_index ON my_table; DROP VIEW my_view; Oracle:Oracle支持DROP DATABASE、DROP TABLE、DROP INDEX和DROP VIEW等命令,但删除数据库需要使用RMAN工具,而不是直接使用DROP命令。 DROP TABLE my_table; DROP INDEX my_index; DROP VIEW my_view...
如果此步骤中得不到这个DATA_OBJECT_ID，则需要在NON-DICT非字典模式下3. 启动PRM DUL，进入NON-DICT非字典模式，并加入被DROP掉数据表所在的表空间的所有数据文件，之后SCAN DATABASE+SCAN TABLE from Extent MAP4. 通过DATA_OBJECT_ID定位到展开对象树形图中对应的数据...
Oracle中的DROP语句用于删除数据库对象,如表、视图、索引、序列等,以下是一些常见的使用示例: 1、删除表: DROP TABLE table_name; 2、删除视图: DROP VIEW view_name; 3、删除索引: DROP INDEX index_name; 4、删除序列: DROP SEQUENCE sequence_name; ...
2.DROP TABLE 语句 DROP TABLE 语句用于删除表。 DROPTABLEtable_name 3.DROP DATABASE 语句 DROP DATABASE 语句用于删除数据库。 DROPDATABASEdatabase_name 4.TRUNCATE TABLE 语句 如果我们只需要删除表中的数据,而不删除表本身,那么我们该怎么做?
Oracle Drop Table DROP TABLE 使用DROP TABLE语句将表或对象表移动到回收站或从数据库中完全删除表及其所有数据。 注:除非指定purge子句,否则drop table语句不会将表占用的空间释放回表空间供其他对象使用,占用空间继续计入用户的空间配额。 对于外部表,此语句只删除数据库中的表元数据。它不会影响实际数据,实际数据...
CREATE DATABASE LINK CREATE DATABASE CREATE EXTERNAL TABLE CREATE INDEX CREATE OUTLINE DROP RESTORE POINT CREATE SEQUENCE CREATE TABLE CREATE TABLEGROUP CREATE USER CREATE VIEW DEALLOCATE PREPARE DROP DATABASE LINK DELETE DESCRIBE DROP DATABASE DROP INDEX DROP OUTLINE DROP TABLE DROP TABLEGROUP DROP SE...
DROP TABLE,ApsaraDB for OceanBase:This topic describes the conversion scope of DROP TABLE DDL operations during data migration from an Oracle database to an Oracle tenant of OceanBase Database.
SQL> create table t1 as select * from dba_tables; Table created. SQL> select count(*) from t1; COUNT(*) --- 1204 +++++Session 2 run { allocate channel c1 type disk; allocate channel c2 type disk; backup database format '/oradata/backup/full_%d_%T_%s_%p'; sql 'alter...