Question

这是我的代码：

using (MySql.Data.MySqlClient.MySqlConnection cn = new   
MySql.Data.MySqlClient.MySqlConnection(
            Properties.Settings.Default.CONNNConnectionString))
        {
            cn.Open();
            MySql.Data.MySqlClient.MySqlCommand cm = new 
            MySql.Data.MySqlClient.MySqlCommand();
            cm.CommandType = CommandType.Text;
            cm.Connection = cn;
            cm.CommandText="CREATE  PROCEDURE `GetMovement`(RefArtt vARCHAR(20),idos INTEGER) "+
"BEGIN "+
"SET @Qt=0; "SELECT * ,@Qt:=@Qt+qteliv-qtesor as stock FROM tableInOut;"+
"End";
cm.ExecuteNonQuery();}

异常：您的SQL语法有错误;检查与MySQL服务器版本对应的手册，以便在''@ Qt'= 0附近使用正确的语法; SELECT * ...

Answer 1

我不明白你的查询100％：

SELECT * ,@Qt:=@Qt+qteliv-qtesor as stock FROM tableInOut;

如果您可以解释，以便我根据需要调整我的代码，但这是一个例子：

using (MySql.Data.MySqlClient.MySqlConnection cn = new   
MySql.Data.MySqlClient.MySqlConnection(
            Properties.Settings.Default.CONNNConnectionString))
{
    cn.Open();
    MySql.Data.MySqlClient.MySqlCommand cm = new 
    MySql.Data.MySqlClient.MySqlCommand();
    cm.CommandType = CommandType.Text;
    cm.Connection = cn;
    cm.CommandText=@"
    DELIMITER //
     CREATE PROCEDURE GetMovement(IN RefArtt VARCHAR(20), IN idos INTEGER)
       BEGIN
        SELECT * 
        FROM tableInOut 
        WHERE ref = RefArtt AND id = idos;
       END //
    DELIMITER ; 
    ";
    cm.ExecuteNonQuery();
}

创建具有参数的过程？

1 个答案: