With packages, you can specify which types, items, and subprograms are public (visible and accessible) or private (hidden and inaccessible). For example, if a package contains four subprograms, three might be public and one private. The package hides the implementation of the private subprogram ...
createpackageexample4is procedureupdate_sal(namevarchar2,newSalnumber); functionannual_income(namevarchar2)returnnumber; end; 包规范只包含了过程和函数的说明,但是没有过程和函数的实现代码。包体用于实现包规范中的过程和函数。 ②建立包体使用create package body命令 --实例,创建包体 createorreplacepackagebody...
Example of a Package Specification:comm_pkg --The package specification with a pulbic variable and a public procedure--that are accessible from outside the package.CREATEORREPLACEPACKAGE comm_pkgISv_std_commNUMBER:=0.10;--initialized to 0.10PROCEDUREreset_comm(p_new_commNUMBER);--注意,在这里声明...
本示例展示了如何使用PL/SQL在Oracle数据库中执行一系列查询和插入操作。首先，我们声明了一些变量，用于存储查询结果。在BEGIN块中，我们使用了SELECT语句从emp表中获取经理的工号，并将其赋值给mgr_num变量。然后，我们使用了WHILE循环，当salary小于等于2500时，继续执行循环体内的代码。在循环体内，我们再...
A simple package example Suppose that my employees table is defined as follows: Copy code snippet Copied to Clipboard Error: Could not Copy Copied to Clipboard Error: Could not Copy SQL> desc employees Name Type ——— ——— EMPLOYEE_ID NUMBER(38) FIRST_NAME VARCHAR2...
package_name.item_nameCode language: SQL (Structured Query Language) (sql) For example, the following anonymous block assigns the variable gv_status of the package sample to the gc_shipped constant and prints the value. BEGIN sample.gv_status DBMS_OUTPUT.PUT_LINE(sample.gv_status); END;Code...
Specifies that only the package body is to be dropped. If this keyword is omitted, both the package specification and the package body are dropped. package-name Specifies the name of a package. Examples The following example shows how to drop only the body of a package named EMP_ADMIN: ...
Oracle数据库之PL/SQL包 Oracle数据库之PL/SQL包 1. 简介 包(PACKAGE)是一种数据对象,它是一组相关过程、函数、变量、常量和游标等PL/SQL程序设计元素的组合,作为一个完整的单元存储在数据库中,用名称来标识。 包类似于Java或C#语言中的类,包中的变量相当于类中的成员变量,过程和函数相当于类方法。
Oracle Database includes manysupplied packagesthat extend database functionality and provide PL/SQL access to SQL features. For example,theUTL_HTTPpackage enables HTTP callouts from PL/SQL and SQL to access data on the Internet or to call Oracle Web Server Cartridges. You can use the supplied ...
select * from table(mymodplsql(:proc)) cjbj closed this as completed Jun 29, 2020 briandunn commented Jan 16, 2024 Anyone else who wound up here may also find this useful. Explains how to get the markup from a web package in an anonymous block.Sign...