If you want to explicitly delete a view in a specific schema, you can specify a schema name: DROPVIEW[IF EXISTS]schema_name.view_name[CASCADE CONSTRAINT];Code language:CSS(css) If you skip the schema name, Oracl
数据库的运维中,经常会遇到delete drop truncate的操作,那么如何去把握它们的用法和区别呢? 比如当数据库空间爆满,已经增长到存储空间单个存储文件的最大值32G。...若要彻底删除表,则使用语句:drop table purge; Oracle命...
Oracle PL/SQL Tutorial View Drop ViewSQL> SQL> BEGIN 2 FOR i IN (SELECT null FROM user_views WHERE view_name = 'BOOKS_emp') LOOP 3 EXECUTE IMMEDIATE 'DROP VIEW books_emp'; 4 END LOOP; 5 END; 6 / PL/SQL procedure successfully completed. 8.6.Drop View 8.6.1. Dropping a View 8.6...
Specify the schema containing the materialized view. If you omitschema, then Oracle Database assumes the materialized view is in your own schema. materialized_view Specify the name of the existing materialized view to be dropped. If you drop a simple materialized view that is the least recently ...
1* select tablespace_name,file_name from dba_temp_files SQL> / TABLESPACE_NAME FILE_NAME --- --- TEMP /home/oracle/app/oracle/oradata/cdb1/orcl/orcl_temp01201 4-07-30_04-39-23-PM.dbf Create another Temporary Tablespace TEMP1 CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE ‘/u01/app...
这是因为ORACLE的临时数据文件是一类特殊的数据文件:稀疏文件(Sparse File),当临时表空间文件创建时,它只会写入文件头部和最后块信息(only writes to the header and last block of the file)。它的空间是延后分配的.这就是你创建临时表空间或给临时表空间添加数据文件飞快的原因。
Oracle Database - Enterprise Edition - Version 11.2.0.2 and later: Create Materialized View Results in ORA-955 But Drop Materialized View Does Not Succeed Either
Drop datafile in Oracle 10g In 9i database, the datafiles can't be dropped directly unless you will drop the whole tablespace. From 10g, you can use ‘drop datafile’ clause to drop a single datafile. When you drop a datafile, the datafile will be removed from data dictionary and control...
因此列出IN、INOUT和VARIADIC参数就可以。 argname一个参数的名称。注意 DROP FUNCTION并不真正关心参数名称,因为决定函数的身份时只需要参数的数据类型。 argtype如果函数有参数,这是函数参数的数据类型(可以是模式限定的)。 CASCADE自动删除依赖于该函数的对象(例如操作符和触发器),然后删除所有依赖于那些对象的对象...
ALTER MATERIALIZED VIEW LOG scott.emp STORAGE (NEXT 50K);Remove the materialized view log associated with scott's emp table from the database:DROP MATERIALIZED ... Get Oracle SQL: the Essential Reference now with the O’Reilly learning platform. O’Reilly members experience books, live events,...