How does Oracle determine whether a table space is automatically expanded?

In Oracle, you can use the "select file_name,autoextensible,increment_by from dba_data_files" statement to determine whether the table space is automatically expanded. If the autoextensible result is yes, it means automatic expansion.

The operating environment of this tutorial: Windows 10 system, Oracle 11g version, Dell G3 computer.

How does oracle determine whether the table space is automatically expanded?

Use a user with dba permissions to execute:

select file_name,autoextensible,increment_by from dba_data_files

If autoextensible is yes, it will be automatically expanded, if it is no, it will not be automatically expanded. .

As shown:

Expand knowledge:

How to set up table space automatic expansion

1 , Check the table space situation

SQL>select tablespace_name,file_name,autoextensible from dba_data_files where tablespace_name = '表空间名称';

2. Modify the table space data file to achieve automatic expansion of the table space

SQL>alter database datafile '/u01/app/oracle/oradata/orcl/user01.dbf' autoextend on;

3. Verify the modification results

SQL>select tablespace_name,file_name,autoextensible from dba_data_files where tablespace_name = '表空间名称';

Syntax summary

Syntax to turn on the automatic expansion function:

alter database datafile '对应的数据文件路径信息' autoextend on;

Syntax to turn off the automatic expansion function:

alter database datafile '对应的数据文件路径信息' autoextend off;

Recommended tutorial: "Oracle Video Tutorial"

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