Question

I’ve some code I use to transfer a table1 values to another table2, they are sitting in different database.

It’s slow when I have 100.000 records. It takes forever to finish, 10+ minutes.

(Windows Mobile smartphone)

What can I do?

cmd.CommandText = "insert into " + TableName + " select * from sync2." + TableName+"";  
cmd.ExecuteNonQuery();

EDIT

The problem is not resolved. I’m still after answers.

Answer 1

1] You can set the following parameters in your connectionString

string connectionString = @"Data Source=E:\myDB.db3; New=true; Version=3; PRAGMA cache_size=20000; PRAGMA page_size=32768; PRAGMA synchronous=off";

which has its own limitations. check this link for details

The above will increase the cache size ultimately(cache_size & page_size) but you could lose some data in case of force shutdown of your system(synchronous=off).

2] You can wrap your insert statements inside a transaction like this

dbTransaction = dbConnection.BeginTransaction();
dbCommand.Transaction = dbTransaction;
// your individual insert statements here
dbTransaction.Commit();

3] There is one more trick which is well explained in this page. Check it out

Hope that helps
Cheers!