I dont know how to do multiple queries. They all have parameters
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MySQL / Multiple inserts per query
Hi,
I am currently using MySqlCommand to insert records into a remote database. It's very slow executing one insert query at a time.
Can somebody show me how I could do multiple inserts per query to speed it up?
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Answers
For example
object[] data = {new object[]{1,"One"}, new object[]{2,"Two"}};
// initiate command
MySqlCommand myCommand = new MySqlCommand();
myCommand.CommandType = CommandType.Text;
myCommand.Connection = new MySqlConnection(myConnectS
StringBuilder sql = new StringBuilder();
for(int i=0; i<data.Length; i++)
{
object[] item = (object[])data;
// build the command with multiple insert statements
if(sql.Length > 0) sql.Append(";"); //separate by ;
sql.Append("insert into atable(a,b) value(@a").Append(i).Appen
// set parameter values
myCommand.Parameters.Add("
myCommand.Parameters.Add("
}
// execute the statements
myCommand.CommandText = sql.ToString();
myCommand.ExecuteNonQuery(
The final result of the sql var should be
insert into atable(a,b) values(@a1,@b1);insert into atable(a,b) values(@a2,@b2)
(Sorry, it's missing a 's' after word 'value' in my code above)
There are 2 insert statements in *one* query as zattz requested, they are separated by ';' in the query.
What I need to do next is set parameter values of @a1, @a2, @b1, @b2.
Or am I missing something?
I know it's a closed post but my solution might help others more than the solution above
Use the mysql way. The syntax would be:
INSERT INTO x (a,b)
VALUES
('1', 'one'),
('2', 'two'),
('3', 'three')
Just keep in mind that statement might get bigger than the Max Allowed Packet size in MySQL. So keep that in mind when using.
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by: gnoonPosted on 2007-09-01 at 06:50:35ID: 19813816
Please try to separate them with ;