本文介绍了一个PL/SQL包，用于查询指定部门内所有员工的详细信息。通过定义一个游标类型并创建一个过程来实现这一功能，该过程接收部门编号作为输入参数，并返回一个包含查询结果的游标。
查询某个部门中所有员工的所有信息
CREATE OR REPLACE
PACKAGE MYPACKAGE AS
type empcursor is ref cursor;
procedure queryEmpList(dno in number,empList out empcursor);
END MYPACKAGE;
==============================================
CREATE OR REPLACE
PACKAGE BODY MYPACKAGE AS
procedure queryEmpList(dno in number,empList out empcursor) AS
BEGIN
open empList for select * from emp where deptno=dno;
END queryEmpList;
END MYPACKAGE;
CREATE OR REPLACE
PACKAGE MYPACKAGE AS
type empcursor is ref cursor;
procedure queryEmpList(dno in number,empList out empcursor);
END MYPACKAGE;
==============================================
CREATE OR REPLACE
PACKAGE BODY MYPACKAGE AS
procedure queryEmpList(dno in number,empList out empcursor) AS
BEGIN
open empList for select * from emp where deptno=dno;
END queryEmpList;
END MYPACKAGE;
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