所有PL/SQL支持的算术运算符:+、-、*、/、**(乘方)。给出的操作实例源码:
-- Created on 2018/3/22 by E.WANG
declare
-- 声明两个整型变量
first_int integer;
second_int integer;
--声明一个双精度变量存放运算结果
result_dub double precision;
begin
/*
算数运算符:+、-、*、/、**(乘方)
*/
--加法
first_int:=10;
second_int:=30;
result_dub:=first_int+second_int;
dbms_output.put_line('The result of add:' || result_dub);
--减法
first_int:=789654123;
second_int:=4561230;
result_dub:=first_int-second_int;
dbms_output.put_line('The result of sub:' || result_dub);
--乘法
first_int:=456;
second_int:=789;
result_dub:=first_int*second_int;
dbms_output.put_line('The result of mul:' || result_dub);
--除法
first_int:=78965;
second_int:=234;
result_dub:=first_int/second_int;
dbms_output.put_line('The result of div:' || result_dub);
--乘方
first_int:=2;
second_int:=10;
result_dub:=first_int**second_int;
dbms_output.put_line('The result of power:' || result_dub);
--组合运算
first_int:=2;
second_int:=10;
result_dub:=first_int**second_int+first_int-second_int*first_int+second_int/first_int;
dbms_output.put_line('The result of combine:' || result_dub);
end;
给出窗口截图:
运行结果截图: