The Database class makes possible to create and easily manage
tables.
The concepts at the base of this engine are similar to those found in other
database engines: a table is made of fields; you have to specify name, type
and dimension of every field of your table; fields are usually of fixed
length, but are also allowed blob fields (blob stands for Binary Large
OBject) like the Memo field or a graphic field; you can perform quick
searches in the table using the indexed fields.
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