Access “Compact and Repair” programmatically

Question

Is it possible to \"compact and repair\" an Access database programmatically somehow (using ADOX, using OleDbConnection etc.)?

Answer 1

It is just four lines of code in c#.net

First use a library:

using JRO;

You want to compact and repair test.mdb with the following code:

string currentdirectory = System.IO.Directory.GetCurrentDirectory();
string oldmdbfile = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + currentdirectory + "\\test.mdb;Jet OLEDB:Database Password='xyz'";
string newmdbfile = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + currentdirectory + "\\test1.mdb;Jet OLEDB:Database Password='xyz'";
string oldmdbfilepath = currentdirectory + "\\test.mdb";
string newmdbfilepath = currentdirectory + "\\test1.mdb";

JRO.JetEngine engine = new JetEngine();
engine.CompactDatabase(oldmdbfile, newmdbfile);
File.Delete(oldmdbfilepath);
File.Move(newmdbfilepath, oldmdbfilepath);
MessageBox.Show("Database compact and repaired successfully !",);

Thus test.mdb will be compacted and repaired and a new file test1.mdb will be created. Then you just have to delete test.mdb and rename test1.mdb to test.mdb.