How to delete a table type

Question

Hi,
I've defined a
type reg is table of mytable%rowtype INDEX BY BINARY_INTEGER;
reg_tab  reg;
In my script I load some data on reg_tab
How can I delete the data from it? I mean I'd like to do something like delete from reg_tab; after finishing to work on reg_tab
Thanks
Edited by: Mark1970 on 1-lug-2010 3.23

Answer 1

PL/SQL tables have the following attributes that could be used on them:
• DELETE—Deletes rows in a table.
• EXISTS—Return TRUE if the specified entry exists in the table.
• COUNT—Returns the number of rows in the table.
• FIRST—Returns the index of the first row in the table.
• LAST—Returns the index of the last row in the table.
• NEXT—Returns the index of the next row in the table after the specified row.
• PRIOR—Returns the index of the previous row in the table be-fore the specified row.
In your case, you could either use
reg_tab.delete - to delete all rows
reg_tab.delete (n) - to delete nth row.
To delete all rows after inspecting them one by one ... you could use the COUNT attribute in a FOR loop similar to this...
FOR idx in 1 .. reg_tab.COUNT
LOOP
-- do necessary checks
-- reg_tab.delete (idx) ;
END LOOP;