MySQL 存储过程带in和out参数以及PHP,PB如何调用的小例子

搜鞥都哦

　　
　　最简单的例子:

mysql> DELIMITER $$
mysql> USE test $$
Database changed
mysql> DROP PROCEDURE IF EXISTS `sp_add`$$
Query OK, 0 rows affected (0.00 sec)
mysql> CREATE PROCEDURE sp_add(a INT, b INT,OUT c INT)
-> BEGIN
-> SET c=a+ b;
-> END$$
Query OK, 0 rows affected (0.00 sec)
mysql> DELIMITER ;
　　mysql> CALL sp_add (1,2,@c);
Query OK, 0 rows affected (0.00 sec)
　　mysql> SELECT @c;
+------+
| @c |
+------+
| 3 |
+------+
1 row in set (0.00 sec)
　　mysql>

　　
一个稍微复杂的例子:

mysql> show create table t_BillNo;
+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table    | Create Table                                                                                                                                                                        |
+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| t_BillNo | CREATE TABLE `t_billno` (
`SaleNo` bigint(20) DEFAULT NULL,
`bmh` varchar(20) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=DYNAMIC |
+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> select * from t_BillNo;
+--------+------+
| SaleNo | bmh  |
+--------+------+
|      1 | 2    |
|      4 | 3    |
|      4 | 5    |
|      7 | 7    |
|     12 | 8    |
+--------+------+
5 rows in set (0.00 sec)
mysql>
mysql> DELIMITER $$
mysql> USE test $$
Database changed
mysql> DROP PROCEDURE IF EXISTS `sp_GetMaxNumber`$$
Query OK, 0 rows affected (0.01 sec)
DELIMITER $$
USE test $$
DROP PROCEDURE IF EXISTS `sp_GetMaxNumber`$$
CREATE PROCEDURE sp_GetMaxNumber (IN v_bmh VARCHAR(6), OUT v_MaxNo INT)
BEGIN
START TRANSACTION;
UPDATE t_BillNo
SET SaleNo = IFNULL(SaleNo,0)+1
WHERE bmh = v_bmh;
IF @@error_count = 0 THEN
BEGIN
SELECT Saleno INTO v_MaxNo FROM t_BillNo WHERE bmh = v_bmh;
COMMIT;
END;
ELSE
BEGIN
ROLLBACK;
SET v_MaxNo = 0;
END;
END IF;
END$$
DELIMITER ;
mysql> CREATE PROCEDURE sp_GetMaxNumber (IN v_bmh VARCHAR(6), OUT v_MaxNo INT)
-> BEGIN
-> START TRANSACTION;
-> UPDATE t_BillNo
-> SET SaleNo = IFNULL(SaleNo,0)+1
-> WHERE bmh = v_bmh;
-> IF @@error_count = 0 THEN
-> BEGIN
->   SELECT Saleno INTO v_MaxNo FROM t_BillNo WHERE bmh = v_bmh;
-> COMMIT;
-> END;
-> ELSE
-> BEGIN
->      ROLLBACK;
->      SET v_MaxNo = 0;
-> END;
-> END IF;
-> END$$
Query OK, 0 rows affected (0.00 sec)
mysql> DELIMITER ;
mysql>
mysql> call sp_GetMaxNumber(8,@v_MaxNo);
Query OK, 0 rows affected (0.00 sec)
mysql> select @v_MaxNo;
+----------+
| @v_MaxNo |
+----------+
|       12 |
+----------+
1 row in set (0.00 sec)
　　
如何在php中调用MySQL的存储过程?本人没有测试过,从朋友那里借鉴过实例,如下:
　　$sql = "call test.sp_GetMaxNumber(8,@c);";

mysql_query($sql);//调用sp_GetMaxNumber的存储过程

$result = mysql_query('select @c;');

$array = mysql_fetch_array($result);

echo '<pre>';print_r($array);
　　

　　但是在PB中调用,报错如下(来自itpub的网友的例子),有类似经历的朋友请分享下经验啊:
　　在PB W_MAIN窗体的CB_1.CLICK事件中：


string ls_bmh, ls_errtext

int li_maxno

ls_bmh = '0901'


sp_GetMaxNumber(ls_bmh, li_maxno)

ls_errtext = sqca.sqlerrtext

messagebox('Error',string(li_maxno)+' ' +sqlca.sqlerrtext)


但PB显示显示错误：

0 SQLSTATE = 37000

[MYSQL] [ODBC 5.1 DRIVER]YOU HAVE AN ERROR IN YOUR SQL SYNTAX;CHECK THE MANUAL THAT CORRESPONDS TO YOUR MYSQL SERVER VERSION FOR THE RIGHT SYNTAX TO USE NEAR '?=CALL SP_GetMaxNumber(0,_GBK'0901') AT LINE 1.