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用PHP调用Oracle存储过程_PHP

Jun 01, 2016 pm 12:39 PM
id php use storage binding transfer process

从开始学习PHP就来喜悦国际村,好几个月了,学到不少东西,自己写了个例子希望有点用处。

PHP程序访问数据库,完全可以使用存储过程,
有人认为使用存储过程便于维护
不过仁者见仁,智者见智,在这个问题上,偶认为使用存储过程意味着必须要DBA和开发人员更紧密配合
如果其中一方更变,则显然难以维护。
但是使用存储过程至少有两个最明显的优点:速度和效率。
使用存储过程的速度显然更快。
在效率上,如果应用一次需要做一系列SQL操作,则需要往返于PHP与ORACLE,不如把该应用直接放到数据库方以减少往返次数,增加效率。
但是在INTERNET应用上,速度是极度重要的,所以很有必要使用存储过程。
偶也是使用PHP调用存储过程不久,做了下面这个列子。

这是偶第一次写文章(以前都是发水贴),希望大家多多斧正!



代码:--------------------------------------------------------------------------------

//建立一个TEST表
CREATE TABLE TEST (
ID NUMBER(16) NOT NULL,
NAME VARCHAR2(30) NOT NULL,
PRIMARY KEY (ID)
);

//插入一条数据
INSERT INTO TEST VALUES (5, 'PHP_BOOK');

//建立一个存储过程
CREATE OR REPLACE PROCEDURE PROC_TEST (
p_id IN OUT NUMBER,
p_name OUT VARCHAR2
) AS
BEGIN
SELECT NAME INTO p_name
FROM TEST
WHERE ID = 5;
END PROC_TEST;
/

--------------------------------------------------------------------------------



PHP代码:--------------------------------------------------------------------------------


//建立数据库连接
$user = "scott"; //数据库用户名
$password = "tiger"; //密码
$conn_str = "tnsname"; //连接串(cstr : Connection_STRing)
$remote = true //是否远程连接
if ($remote) {
$conn = OCILogon($user, $password, $conn_str);
}
else {
$conn = OCILogon($user, $password);
}

//设定绑定
$id = 5; //准备用以绑定的php变量 id
$name = ""; //准备用以绑定的php变量 name

/** 调用存储过程的sql语句(sql_sp : SQL_StoreProcedure)
* 语法:
* BEGIN 存储过程名([[:]参数]); END;
* 加上冒号表示该参数是一个位置
**/
$sql_sp = "BEGIN PROC_TEST(:id, :name); END;";

//Parse
$stmt = OCIParse($conn, $sql_sp);

//执行绑定
OCIBindByName($stmt, ":id", $id, 16); //参数说明:绑定php变量$id到位置:id,并设定绑定长度16位
OCIBindByName($stmt, ":name", $name, 30);

//Execute
OCIExecute($stmt);

//结果
echo "name is : $name
";

?>


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