一、创建存储函数:
语法:create or replace function 函数名 return 返回类型
as
PLSQL程序段
二、删除存储函数,语法:drop function 函数名;
三、调用:
方式一:PLSQL程序段:
方式二:java程序
例:创建有参存储函数findempIncome(编号),查询7369号员工的收入
create or replace function findEmpIncome(pempno in number) return number
as
income number;
begin
select sal*12+NVL(comm,0)into income from emp where empno=pempno;
return income;
end;
/
例:创建有参存储函数findEmpNameAndJobAndSal(编号),查询7788号员工的姓名(return)、职位(out)、月薪(out),返回多个值
create or replace function
findEmpNameAndJobAndSal(pemno in number,pjob out varchar2,psal out number)
return varchar2
as
pename emp.ename%type;
begin
select ename,job,sal into pename,pjob,psal from emp where empno=pempno;
end;
/
语法:create or replace function 函数名 return 返回类型
as
PLSQL程序段
二、删除存储函数,语法:drop function 函数名;
三、调用:
方式一:PLSQL程序段:
方式二:java程序
例:创建有参存储函数findempIncome(编号),查询7369号员工的收入
create or replace function findEmpIncome(pempno in number) return number
as
income number;
begin
select sal*12+NVL(comm,0)into income from emp where empno=pempno;
return income;
end;
/
例:创建有参存储函数findEmpNameAndJobAndSal(编号),查询7788号员工的姓名(return)、职位(out)、月薪(out),返回多个值
create or replace function
findEmpNameAndJobAndSal(pemno in number,pjob out varchar2,psal out number)
return varchar2
as
pename emp.ename%type;
begin
select ename,job,sal into pename,pjob,psal from emp where empno=pempno;
end;
/