Use implicit or explicit cursor to insert 50000 rows to a table : Implicit Cursor « Cursor « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Cursor » Implicit Cursor 
25. 8. 17. Use implicit or explicit cursor to insert 50000 rows to a table
SQL> create table myTable x primary key )
  2   organization index as select from dual;

Table created.

SQL> create or replace procedure implicit is
  2   dummy number;
  3  begin
  4   for i in .. 50000 loop
  5       select into dummy from myTable;
  6   end loop;
  7  end;
  8  /

Procedure created.

SQL> create or replace procedure explicit is
  2   cursor explicit_cur is select from myTable;
  3   dummy number;
  4  begin
  5   for i in .. 50000 loop
  6       open explicit_cur;
  7       fetch explicit_cur into dummy;
  8       close explicit_cur;
  9   end loop;
 10  end;
 11  /

Procedure created.

SQL>
SQL> drop table myTable;

Table dropped.
25. 8. Implicit Cursor
25. 8. 1. Taking a Shortcut with CURSOR FOR Loops
25. 8. 2. %ISOPEN, %FOUND, %NOTFOUND variables aren't useful at all in CURSOR FOR loops
25. 8. 3. Implicit Cursor Attributes: SQL%NOTFOUND
25. 8. 4. Implicit Cursor Attributes Example: SQL%ROWCOUNT
25. 8. 5. NO_DATA_FOUND Exception vs. %NOTFOUND
25. 8. 6. Looping through a Cursor by Using the LOOP Command
25. 8. 7. Adding an Exception Handler to a CURSOR FOR Loop
25. 8. 8. Knowing what record is processing
25. 8. 9. Use %ROWCOUNT to detect what record you are processing at a given point
25. 8. 10. Declare and use a cursor in for loop
25. 8. 11. Implicit cursor open, fetch and close
25. 8. 12. Handling exceptions in implicit cursors
25. 8. 13. Returning an implicit cursor into a record
25. 8. 14. The Difference between Explicit and Implicit Cursors
25. 8. 15. Implicit Cursor: Too many rows
25. 8. 16. Implicit Cursor: No rows found
25. 8. 17. Use implicit or explicit cursor to insert 50000 rows to a table
25. 8. 18. Test cursor attributes with an implicit cursor
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