1、基本語法
CREATE OR REPLACE PROCEDURE 存儲過程名(param1 in type,param2 out type)
/** AS和IS沒區別 **/
IS
變量1 類型(值範圍);
變量2 類型(值範圍);
BEGIN
select count(*) into 變量1 from 表名 where 列名=param1;
if (判斷條件) then
select 列名 into 變量2 from 表名 where 列名=param1;
DBMS_OUTPUT.put_line('打印信息');
Elseif (判斷條件) then
dbms_output.put_line('打印信息');
Else
Raise 異常名 (NO_DATA_FOUND);
End if;
Exception
When others then
Rollback;
END;
2、基本使用
2.1、沒有參數的過程
create or replace procedure test_count
is
v_total int;
v_date varchar(20);
begin
select count(*) into v_total from dual;
select to_char(sysdate,'yyyy-mm-dd') into v_date from dual;
DBMS_OUTPUT.put_line('總人數：'||v_total);
DBMS_OUTPUT.put_line('當前時間:'||v_date);
end;
調用方法
begin
test_count;
end;
2.2、僅帶傳入參數的過程
create or replace procedure test_count1(v_id in varchar2)
as
v_name varchar(100);
begin
select c_name into v_name from tb_store where c_stono=v_id;
DBMS_OUTPUT.put_line(v_id||'店的名稱爲:'||v_name);
exception
when no_data_found then dbms_output.put_line('no_data_found');
end;
調用方法
begin
test_count1(11910);
end;
2.3、僅帶輸出參數的過程
create or replace procedure test_count2(v_name out varchar2)
is
begin
select c_name into v_name from tb_store where c_stono='1101';
exception
when no_data_found then dbms_output.put_line('no_data_found');
end;
調用方法
declare
v_name varchar(200);
begin
test_count2(v_name);
dbms_output.put_line(v_name);
end;
2.4、帶輸入參數和輸出參數的存儲過程
create or replace procedure test_count3(v_id in int,v_name out varchar2)
as
begin
select c_name into v_name from tb_store where c_stono=v_id;
dbms_output.put_line(v_name);
exception
when no_data_found then dbms_output.put_line('no_data_found');
end;
調用方法
declare
v_name varchar(200);
begin
test_count3('1101',v_name);
end;