问题
I would like to use the Database.ExecuteNonQuery or something similar to execute a sql script and then capture the output.
eg: xxx Table created
My script:
strArray = Regex.Split(streamReader.ReadToEnd(), "\r\nGO");
if (connection.State == ConnectionState.Open)
{
System.Data.SqlClient.SqlCommand cmd;
foreach (string sql in strArray)
{
cmd = new System.Data.SqlClient.SqlCommand(sql);
cmd.Connection = connection;
Console.WriteLine(sql);
Console.WriteLine(cmd.ExecuteNonQuery().ToString());
}
}
回答1:
If I understand correctly, I think you mean to retrieve the "informational messages" that come from issuing a sql command. I have not tried, but I think the "print statements" results are handled the same way. In which case, you need to add a informational event handler to your sql connection object.
See this article which explains how to do this.
Pretty simple (snippet grabbed from aticle)
myConnection.InfoMessage += new SqlInfoMessageEventHandler(myConnection_InfoMessage);
void myConnection_InfoMessage(object sender, SqlInfoMessageEventArgs e)
{
myStringBuilderDefinedAsClassVariable.AppendLine(e.Message);
}
回答2:
ExecuteNonQuery
return an int
based on the number of rows affected and is used for UPDATE
, DELETE
and INSERT
.
See the MSDN documentation
SqlCommand.ExecuteNonQuery Method
You want ExecuteScalar
来源:https://stackoverflow.com/questions/19938971/how-do-i-get-the-output-from-database-executenonquery