procedure:存储过程 eg: create or replace procedure p --这儿是和plsql的区别 is cursor c is select * from emp2 for update; --v_temp c%rowtype; begin for v_temp in c loop if(v_temp.sal< 2000) then update emp2 set sal=sal*2 where current of c ; elsif(v_temp.sal = 5000) the...
oracle之存储过..对于PLSql程序的使用,如果每次使用都要进行编写,会非常的麻烦,这时可以采用过程和函数来命名PLSQL程序,被编译后存储到数据库中,以备后续使用。过程和函数统称为PL/SQL子程序,他们是被命名的
function 1.创建 2.调用 3.例子 Tips:调试子程序——报错信息的输出 1. 输出到 控制台 dbms_output.put_line(); 2.插入到日志表 ——table()函数,type,sys_refcursor 参考文档: oracle table()函数 pipelined,object http://www.baidu.com/link?url=CPVAwTfd1XMq8XBIxdCb9W5mGSorW9kvK-k0QdHvxg1guJi7z...
2.在sqlplus中也可以编写运行PLSQL程序: 3.工具的Command Window执行 SQL>BEGIN 2 3 --打印hello world 4 5 DBMS OUTPUT.PUT_LINE( "hello world '); 6 7 END; 8 / PL/SQL过程已执行完成。 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. sqlplus中执行plsql程序,需要在程序最后添加一个 / 标识程序的...
The said code in Oracle's PL/SQL defines a function that calculates and returns the maximum length of department names in the "departments" table. The function "get_max_department_length" and it doesn't take any input parameters. Two variables v_max_length of NUMBER type and initialized to...
1) Function and Procedure overloading 1@@@ overloading procedure and function, both. SYS@ocm> !cat tmp.sql DECLARE --Modularization FUNCTION value_ok ( date_in IN DATE ) RETURN BOOLEAN IS BEGIN RETURN (date_in <= SYSDATE); END; FUNCTION...
CREATE PROCEDURE creates a stored procedure.Function creation also applies to stored procedures. For details, see CREATE FUNCTION.The precision values (if any) of the par
他们会保持在系统表中 12. 序列操作函数CURRVAL 和LASTVAL 13...CREATE PROCEDURE 可以在gp中用返回void的function函数来建立,调用该函数时,使用select myfunc(args) 5. postgresql和gp的函数定义语法pl/plsql...join) 10...为支持Greenplum数据系统分布式的性质和典型的工作负载,一些SQL命令已增加或修改,还有...
procedure proc_test1(num1 number,num2 number) as begin for e in (select * from emp where sal between num1 and num2) loop dbms_output.put_line(e.ename||'-->'||e.sal); end loop; end;-对函数的实现function func_test1 return number as num number; begin select count(*)into num...
The said code in Oracle's PL/SQL package that calculates the average salary and outputs it using the DBMS_OUTPUT.PUT_LINE function. This code defines a package 'salary_pkg' and the package has a procedure 'calculate_avg_salary'. It initializes variables 'v_total_salary' and 'v_employee_...