mysql存储过程的建立及使用

建立存储过程,特别是带有参数的情况反复出错,经常提示“字符串格式不正确”，或者是找不到这样，找不到那样，经分细心分析、分步测试,终于上传成功，这里介绍的是APMServ5.2.6:

一，先解决mysql内部错误：

因为APMServ5.2.6的mysql内部有错，叫BUG好些，容易误入陷阱，需要先把mysql中的proc表删除，然后利用SQL语句重建一个新表，具体参阅本文附件。

二，建一个最简单的存储过程以便测试是否解决了上述BUG总题：

1)================================================

简单测试建立存储过程(不带参数),测试的表自己相应改变

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

CREATE PROCEDURE abc()

begin

insert into answertable (answer_subject_id,answer_voteway_id) values (123,456);

end;

注意：在phpMyAdmin界面中Delimiter改为//(或其它)才能操作成功上边语句，因为上边用到了分号，不能再把默认分号作为分割符。

建立存储过程后，在SQL界面测试：call answertable 然后“执行”，

经测试成功，再继续以下测试。

2)==================================

单独建立一个参数(数字类型)的存储过程

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

CREATE PROCEDURE SaveUserAnswer1 (in xanswer_subject_id int(11))

begin

insert into answertable (answer_subject_id) values (xanswer_subject_id);

end

建成存储过程后，C#中调用如下：

数据库操作类中的一个方法：

public void SaveWithProcedure(string _subject)

{

MySqlConnection conn ＝ new MySqlConnection(connstr)

string connstr1 = string.Format("Server={0};Port={1};Database={2};Uid={3};Pwd={4};charset=gb2312;", "127.0.0.1", "3306", "vote", "root", "");

MySqlDataAdapter mysqldata = new MySqlDataAdapter();

DataSet dataset = new DataSet();

conn = new MySqlConnection(connstr1);

mysqldata.SelectCommand = new MySqlCommand();

mysqldata.SelectCommand.Connection = conn;

mysqldata.SelectCommand.CommandText = "SaveUserAnswer1";

mysqldata.SelectCommand.CommandType = CommandType.StoredProcedure;

MySqlParameter subject_parameter = new MySqlParameter("?xanswer_subject_id", MySqlDbType.Int32);//mysql的存储过程参数是以?打头的

subject_parameter.Value  = _subject;

mysqldata.SelectCommand.Parameters.Add(subject_parameter);

mysqldata.Fill(dataset, "SaveUserAnswer1");

}

主界面调用，实例化类(*)后调用类的方法如下：

*.SaveWithProcedure(103)；

3)==================================

相应地，测试字符类型，varchar

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

CREATE PROCEDURE SaveUserAnswer2 (in xanswer_ip varchar(20))

begin

insert into answertable (answer_ip) values (xanswer_ip);

end

类的方法改动下边相应字符参数部分，(注意：调用存储名也变更了)

MySqlParameter ip_parameter = new MySqlParameter("?xanswer_ip", MySqlDbType.VarChar,20 );

ip_parameter.Value = _ip;

mysqldata.SelectCommand.Parameters.Add(ip_parameter);

主界面调用，实例化类(*)后调用类的方法：

*.SaveWithProcedure("192.168.1.3")；

4)==================================

相应地，测试时间类型，varchar

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

CREATE PROCEDURE SaveUserAnswer3 (in xanswer_time datetime )

begin

insert into answertable (answer_time) values (xanswer_time);

end

类的方法改动下边相应字符参数部分

MySqlParameter dt_parameter = new MySqlParameter("?xanswer_time", MySqlDbType.Datetime  );

dt_parameter.Value = _dt;

mysqldata.SelectCommand.Parameters.Add(dt_parameter);

主界面调用，实例化类(*)后调用类的方法：

*.SaveWithProcedure(DateTime .Now );

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---附件(文摘)：-------------------------------------------------------

将phpmyadmin中的mysql数据库中的表proc删除

执行以下代码重建该表

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

CREATE TABLE `proc` (

`db` char(64) character set utf8 collate utf8_bin NOT NULL default '',

`name` char(64) NOT NULL default '',

`type` enum('FUNCTION','PROCEDURE') NOT NULL,

`specific_name` char(64) NOT NULL default '',

`language` enum('SQL') NOT NULL default 'SQL',

`sql_data_access` enum('CONTAINS_SQL','NO_SQL','READS_SQL_DATA','MODIFIES_SQL_DATA') NOT NULL default 'CONTAINS_SQL',

`is_deterministic` enum('YES','NO') NOT NULL default 'NO',

`security_type` enum('INVOKER','DEFINER') NOT NULL default 'DEFINER',

`param_list` blob NOT NULL,

`returns` char(64) NOT NULL default '',

`body` longblob NOT NULL,

`definer` char(77) character set utf8 collate utf8_bin NOT NULL default '',

`created` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,

`modified` timestamp NOT NULL default '0000-00-00 00:00:00',

`sql_mode` set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','NOT_USED','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','GBASE80','GBASE81','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE') NOT NULL default '',

`comment` char(64) character set utf8 collate utf8_bin NOT NULL default '',

`character_set_client` char(32) character set utf8 collate utf8_bin default NULL,

`collation_connection` char(32) character set utf8 collate utf8_bin default NULL,

`db_collation` char(32) character set utf8 collate utf8_bin default NULL,

`body_utf8` longblob,

PRIMARY KEY (`db`,`name`,`type`)

) DEFAULT CHARSET=utf8 COMMENT='Stored Procedures'

========================================================================================

早期的该表结构如下:

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

CREATE TABLE `proc` (

`db` char(64) character set utf8 collate utf8_bin NOT NULL default '',

`name` char(64) NOT NULL default '',

`type` enum('FUNCTION','PROCEDURE') NOT NULL,

`specific_name` char(64) NOT NULL default '',

`language` enum('SQL') NOT NULL default 'SQL',

`sql_data_access` enum('CONTAINS_SQL','NO_SQL','READS_SQL_DATA','MODIFIES_SQL_DATA') NOT NULL default 'CONTAINS_SQL',

`is_deterministic` enum('YES','NO') NOT NULL default 'NO',

`security_type` enum('INVOKER','DEFINER') NOT NULL default 'DEFINER',

`param_list` blob NOT NULL,

`returns` char(64) NOT NULL default '',

`body` longblob NOT NULL,

`definer` char(77) character set utf8 collate utf8_bin NOT NULL default '',

`created` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,

`modified` timestamp NOT NULL default '0000-00-00 00:00:00',

`sql_mode` set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','NOT_USED','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','GBASE323','GBASE40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE') NOT NULL default '',

`comment` char(64) character set utf8 collate utf8_bin NOT NULL default '',

PRIMARY KEY (`db`,`name`,`type`)

) DEFAULT CHARSET=utf8 COMMENT='Stored Procedures'