游标sql语句
declare
cursor emp_cursor (pno in number default 7369)
is select * from emp where empno=pno;
emp_row emp%rowtype;
begin
open emp_cursor(7934);
fetch emp_cursor into emp_row;
dbms_output.put_line(emp_row.ename);
close emp_cursor;
end;
/
declare
cursor emp_cursor (pno in number default 7369)
is select * from emp where empno=pno;
begin
for emp_row in emp_cursor(7934) loop
dbms_output.put_line(emp_row.ename);
end loop;
end;
/
declare
type emp_cname is ref cursor return emp%rowtype;
ecname emp_cname;
emp_row emp%rowtype;
begin
dbms_output.put_line('开始');
open ecname for select * from emp;
loop
fetch ecname into emp_row;
exit when ecname%notfound;
dbms_output.put_line(emp_row.ename);
end loop;
close ecname;
dbms_output.put_line('结束');
end;
/
//向emp表中添加一条记录
create procedure insert_emp as
begin
insert into emp(empno,ename,job,mgr,sal,comm,deptno)
values('7777','redarmy','teacher','7369',9000,1000,20);
commit;
end insert_emp;
set serveroutput on;
begin
insert_emp;
end;
create or replace procedure insert_emp as
begin
insert into emp(empno,ename,job,mgr,sal,comm,deptno)
values('7777','redarmy','teacher','7369',9000,1000,20);
commit;
end insert_emp;
create or replace procedure insert_emp(
cempno in number,
cename in varchar2,
cjob in varchar2,
cmgr in number,
chiredate in date,
csal in number,
ccomm in number,
cdeptno in number
) as
begin
insert into emp(empno,ename,job,mgr,hiredate,sal,comm,deptno)
values(cempno,cename,cjob,cmgr,chiredate,csal,ccomm,cdeptno);
end insert_emp;
set serveroutput on;
begin
insert_emp(cempno=>7377,cename=>'mjjj',cjob=>'stu',cmgr=>7777,chiredate=>to_date('2011-01-01','YYYY-MM-dd'),csal=>5000,ccomm=>1000,cdeptno=>20);
end;
set serveroutput on;
begin
insert_emp(3333,'mjjj','stu',7777,to_date('2011-01-01','YYYY-MM-dd'),5000,1000,20);
end;
set serveroutput on;
begin
insert_emp(9999,cename=>'mjjj',cjob=>'stu',cmgr=>7777,chiredate=>to_date('2011-01-01','YYYY-MM-dd'),csal=>5000,ccomm=>1000,cdeptno=>20);
end;
declare
begin
dbms_output.put_line('开始');
delete from emp where empno=7934;
dbms_output.put_line('结束');
end;
/