Peek lets you read records from another database.
It asks for the name of a database other.
After opening other, it lets you mark and select a subset
of the records in other with the select-menu (see ![[*]](crossref.png)
).
In the select-menu, fieldnames in other that do not appear in the
current database are preceeded by two underscores (__).
These fields will not be copied to the current database
because there is no column for them.
Selected records of other are added at the end of the current database,
but some sort of projection and reshufle of fields is done first.
Only the fields with a name appearing in the current database are copied,
others are left out.
Empty data is added for fields in the current database that do not appear
in other.
This implies that you can only Peek at a database which has one or more
fieldnames in common with the current database.
From those databases, only the data in columns with common names can be copied.