oracle using bulk collect to achieve cursor batch fetch sql statement

The chances of using batch fetch in 1-like situations are not that great, but Oracle does offer this feature and it's best to familiarize yourself with 1 if you ever need to use it.

declare  
cursor c1 is select * from t_depart;  
v_depart t_depart%rowtype ;  
type v_code_type is table of t_depart.depart_code%type ;  
v_code v_code_type ;  
type v_name_type is table of t_depart.depart_name%type ;  
v_name v_name_type ;  
begin  
open c1;  
fetch c1 bulk collect into v_code , v_name ;  
for i in 1..v_code.count loop  
dbms_output.put_line(v_code(i)||' '||v_name(i));  
end loop;   
close c1;   
end; 

From the above column you can see that if there are many columns, it may seem tedious to define a set for each column. You can combine the set with %rowtype 1.

declare  
cursor c1 is select * from t_depart;  
type v_depart_type is table of t_depart%rowtype ;  
v_depart v_depart_type ;  
begin  
open c1;  
fetch c1 bulk collect into v_depart ;  
for i in 1..v_depart.count loop  
dbms_output.put_line(v_depart(i).depart_code||' '||  
v_depart(i).depart_name);  
end loop;   
close c1;   
end; 

You can use both the count attribute of the collection and the first and last attributes in the output. Another thing to note when referring to content of type %rowtype is v_depart(i).depart_code instead of v_depart.depart_code (i).

declare  
cursor c1 is select * from t_depart;  
type v_depart_type is table of t_depart%rowtype ;  
v_depart v_depart_type ;  
begin  
open c1;  
fetch c1 bulk collect into v_depart ;  
for i in v_depart.first..v_depart.last loop  
dbms_output.put_line(v_depart(i).depart_code||' '||  
v_depart(i).depart_name);  
end loop;   
close c1;   
end;