Oracle PL/SQL编程之包(packages) 1、简介 包用于在逻辑上组合过程和函数,它由包规范和包体组成。 我们可以使用create package来创建包,代码如下: ok,包创建完成,通过包的代码发现包的功能就是申明包中包含的过程和方法,红框申明包中包含一个参数为name和newSal的过程名为update_sal的函数。 绿框申明包中包含一...
Oracle PL/SQL编程之包(packages) 1、简介 包用于在逻辑上组合过程和函数,它由包规范和包体组成。 我们可以使用create package来创建包,代码如下: ok,包创建完成,通过包的代码发现包的功能就是申明包中包含的过程和方法,红框申明包中包含一个参数为name和newSal的过程名为update_sal的函数。 绿框申明包中包含一...
--IN 下限 1,上限10 “REVERSE” 代表递减,如果去掉“REVERSE”的话,就是打印1,2,3...10; BEGIN FOR i IN REVERSE 1..10 LOOP DBMS_OUTPUT.PUT_LINE(i); END LOOP; END; 1. 2. 3. 4. 5. 6. 7. PL/SQL的嵌套循环与退出语句 嵌套循环和标号 嵌套循环是指在一个循环语句中嵌入另一个循环语句...
对程序包的优点可总结如下:在PL/SQL程序设计中,使用包不仅可以使程序设计模块化,对外隐藏包内所使用的信息(通过使用私用变量),而写可以提高程序的执行效率。因为,当程序首次调用包内函数或过程时,ORACLE将整个包调入内存,当再次访问包内元素时,ORACLE直接从内存中读取,而不需要进行磁盘I/O操作,从而使程序执行效率得...
Packages are schema objects that group logically related PL/SQL types, variables, functions and procedures. In Oracle, each package consists of two parts: package specification and package body. The package specification may contain variables and REF CURSOR in variables. The package REF CURSORs are ...
Acall speclets you publish a Java method or external C function in the Oracle data dictionary. The call spec publishes the routine by mapping its name, parameter types, and return type to their SQL counterparts. To learn how to write Java call specs, seeOracle9i Java Stored Procedures Develop...
Oracle supplies a large number of both PL/SQL and Java packages, and this chapter focuses on the PL/SQL packages that DBAs can use to extend database functionality. Oracle implements most of the special features of the database with these PL/SQL packages. The number of Oracle-supplied PL/...
Chapter 17. Packages A package is a grouping or packaging of PL/SQL code elements. Packages provide a structure (both logically and physically) in which you can organize your programs and … - Selection from Oracle PL/SQL Programming, Third Edition [Boo
Parent topic:Managing Fine-Grained Access in PL/SQL Packages and Types 10.6.1About Configuring Access Control to an Oracle Wallet You can configure access control to grant access to passwords and client certificates. These passwords and client certificates are stored in an Oracle ...
/ CREATE OR REPLACE EDITIONABLE PACKAGE BODY myPkg_E as procedure count_jobs as l_cnt number; begin select count(*) into l_cnt from sys.dba_scheduler_jobs; end count_jobs; end myPkg_E; / Message was edited by: user7910219 I have created an Oracle SR about this, the have created...