Created by: paul01234
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English (EN)Refers to the basic kind of data stored in a column. Examples of data types that could be stored in the database are char, varchar, Boolean, integer, date, time, and blob.
This refers to the property of a transaction in which two or more computing processes are being executed simultaneously. Database concurrency ensures that transactions happen in an ordered manner.
It is a combination of attributes that can be used to uniquely identify a database entry. Each table in a database may have one or more candidate keys. In case of multiple candidate keys, one of them ...
It is a single data item related to or describing a database object or entity. A database entity may have one or more attributes in accordance to the database schema.
Any condition that the database must always satisfy. Examples of special forms of assertions are domain constraints and referential integrity constraints.
