alter table nologging : Alter Table « Table « Oracle PL/SQL Tutorial

SQL>
SQL>
SQL> create table big_table as select * from all_objects where 1=0;

Table created.

SQL>
SQL> set autotrace on statistics;
SQL>
SQL> insert into big_table select * from all_objects where rownum < 50;

SQL> insert /*+ APPEND */ into big_table select * from all_objects where rownum < 50;


SQL> commit;

Commit complete.

SQL> alter table big_table nologging;

Table altered.

SQL> insert into big_table
  2  select * from all_objects  where rownum < 50;

49 rows created.



SQL> insert /*+ APPEND */ into big_table
  2  select * from all_objects  where rownum < 50;

49 rows created.


SQL> commit;

Commit complete.

SQL>
SQL> drop table big_table;

Table dropped.

SQL>
SQL>

6.3.Alter Table
	6.3.1.	Altering a Table
	6.3.2.	Some of the aspects of a column you can modify using ALTER TABLE
	6.3.3.	Adding a Column
	6.3.4.	ADD initially_created DATE DEFAULT SYSDATE NOT NULL;
	6.3.5.	Changing the Size of a Column
	6.3.6.	Decrease the length of a column
	6.3.7.	Changing the Precision of a Numeric Column
	6.3.8.	Decrease the precision of a numeric column
	6.3.9.	Changing the Data Type of a Column
	6.3.10.	Fill data into new added table column
	6.3.11.	Changing the Default Value of a Column
	6.3.12.	Alter table to add new constraint for new added column
	6.3.13.	ALTER TABLE to DISABLE a CONSTRAINT
	6.3.14.	Alter table to add primary key
	6.3.15.	Alter table to add primary key across more than one columns
	6.3.16.	Dropping a Column
	6.3.17.	New added columns are empty
	6.3.18.	Alter table to add unique with tablespace and storage setting
	6.3.19.	Alter table to add primary key with tablespace and storage setting
	6.3.20.	alter table nologging