PL/SQL: FOR LOOP

FOR LOOP  is used for the fixed number of execution of statement or set of statement.

Syntax:
For Counter_variable in lower_limit . . upper limit Loop
statement 1;
statement 2;
statement 3;
.
.
statement n;
end loop;
end;

Counter variable us is used to continue the loop or execution of statements. IN is the keyword. lower LIMIT and UPPER LIMIT is the critarea for which loops executes the statement(s).

Example:
declare
counter number:=0;
begin
for counter in 1 .. 10 loop
dbms_output.put_line(counter||' I Love Pakistan');
end loop;

end;

Result:
1 I Love Pakistan
2 I Love Pakistan
3 I Love Pakistan
4 I Love Pakistan
5 I Love Pakistan
6 I Love Pakistan
7 I Love Pakistan
8 I Love Pakistan
9 I Love Pakistan
10 I Love Pakistan


To print the table of any number input by the user, The query will be as follow

Example:
declare
result number:=0;
table_num number:= &Enter_number_For_table;
begin
for counter in 1 .. 10 loop
result:=counter*table_num;
dbms_output.put_line(table_num||' * '||counter||' = '||result);
end loop;

end;

Result:
Enter_number_For_table = 19
19 * 1 = 19
19 * 2 = 38
19 * 3 = 57
19 * 4 = 76
19 * 5 = 95
19 * 6 = 114
19 * 7 = 133
19 * 8 = 152
19 * 9 = 171
19 * 10 = 190