A family of Microsoft relational database management systems designed for ease of use.
A bound form's data is automatically saved to a table when you move to another record or close the form. If you wish to force the user to save a record via a command button you might like to take a look at SaveDemo.zip in my public databases folder at:
https://onedrive.live.com/?cid=44CC60D7FEA42912&id=44CC60D7FEA42912!169
Note that if you are using an earlier version of Access you might find that the colour of some form objects such as buttons shows incorrectly and you will need to amend the form design accordingly.
If you have difficulty opening the link, copy the link (NB, not the link location) and paste it into your browser's address bar.
As regards retrieving data you might like to take a look at DatabaseBasics.zip in the same OneDrive folder. This includes a section on this, illustrated with a number of annotated forms, containing unbound controls in which values can be selected or entered to define the basis of the search.
Other demos in the same folder which might be of interest are FindRecord.zip and SearchDemo.zip. For the use of unbound forms for data entry see VolunteerRota.zip. Generally, though, bound forms are used for data input, unless there are cogent reasons for doing otherwise, e.g where a highly customized interface, such as that illustrated in my VolunteerRota demo, is required.