I preparing a database for my office. I have a Master Table Block_Master athis contains the names of 9 blocks in the district of Raigarh. For each block I have a Village_Master table (9 in number) which contains the name of the villages in each block. I have a table New_Registration in which the details of the clients have to be entered. It has a field Block and another field Village. Now I want that when a particular block is selected in the Block field the names for that block should come in the Village Field for selection. Kindly help me.