This function is called FindCourse. It has one parameter called name_in and it returns a number. The function will return the course number if it finds a match based on course name. Otherwise, it returns a 99999. You could then reference your new function in an SQL statement as follows:...
PL/SQL有下列程序单元:过程,函数,包说明,包体 存储过程是作为对象存在于oracle数据库的程序单元。oracle实现存储过程作为过程、函数和包。 不能调用包,可以调用包中可见部分的过程和函数。包是封装同子程序一样持久数据的程序单元。 参数模式有:IN 、OUT、IN OUT。 一、过程 PL/SQL过程是一个编译到oracle数据库模...
1)Return Type:The header section defines the return type of the function. The return datatype can be any of the oracle datatype like varchar, number etc. 2) The execution and exception section both should return a value which is of the datatype defined in the header section. For example,...
Oracle/PLSQL Built-In Functions 今天发现的一个很不错的网站,对常见函数有个很好的讲解,本来还想自己整理一下,学了这么长时间都没有系统的整理过,看了这个确实不错,值得一看。有不少例子,虽然有些确实很简单,没有必要举例,但是也足以见证笔者的耐心和负责。在此我把这里粘贴过来,不过都是引用的该网站的链接。
The said code in Oracle's PL/SQL package that provides convenient functions for string manipulation tasks such as reversing a string and counting the occurrences of a substring. The PL/SQL package StringUtils consists two functions that facilitate string manipulation operations. ...
Chapter 16. Procedures, Functions,and Parameters Earlier parts of this book have explored in detail all of the components of the PL/SQL language: cursors, exceptions, loops, variables, and so on. While … - Selection from Oracle PL/SQL Programming, Thir
Oracle Pipelined Table Functions简介 转自: http://www.linuxidc.com/Linux/2011-05/35797.htm //概况 //基本上,当你希望一个PLSQL(或者java或者c)程序作为数据源,而不是表, //你可能会用到管道函数(pipelined function). //pipelined function操作起来就像一张表...
Examples of function in oracle 9i,pls check the defination of them if not clear about it. 1.select ascii('A') A,ascii('a') a,ascii(0) zero,ascii(' ') space from dual 65 97 48 32 2.select chr(54740) zhao,chr(65) chr65 from dual ...
Oracle Pipelined Table Functions简介 //概况 //基本上,当你希望一个PLSQL(或者java或者c)程序作为数据源,而不是表, //你可能会用到管道函数(pipelined function). //pipelined function操作起来就像一张表 //一个pl/sql函数可能会用于数据仓库的数据库里面,转换大量的数据。
When passing parameters to functions and procedures, the parameters can be declared as IN or OUT or IN OUT parameters. For a description of these parameter declarations, see "Using Local PL/SQL Procedures and Functions in PL/SQL Blocks". See Also: See "CREATE PROCEDURE" in Oracle Database ...