Modeling Data in the Organization A rectangle represents which of the following in an ERD? Entity Relationship Optional One Attribute Entity Relationship Optional One Attribute ANSWER DOWNLOAD EXAMIANS APP
Modeling Data in the Organization Relationships cannot have attributes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Modeling Data in the Organization When the minimum number of instances of an entity is one, you know which of the following? Optional one Mandatory many Cannot tell Mandatory one Optional one Mandatory many Cannot tell Mandatory one ANSWER DOWNLOAD EXAMIANS APP
Modeling Data in the Organization A good identifier is which of the following? Can be null One that can change over time One that is unique Be intelligent Can be null One that can change over time One that is unique Be intelligent ANSWER DOWNLOAD EXAMIANS APP
Modeling Data in the Organization Which of the following conditions should exist if you want to convert a relationship to an associative entity? The resulting associative entity has no attributes. Some of the relationships for the participating entities are 'many'. The resulting associative entity has an independent meaning. All of these The resulting associative entity has no attributes. Some of the relationships for the participating entities are 'many'. The resulting associative entity has an independent meaning. All of these ANSWER DOWNLOAD EXAMIANS APP
Modeling Data in the Organization A binary relationship is which of the following? A relationship between two attributes An attribute with two different relationships An entity with two different relationships A relationship between two entities A relationship between two attributes An attribute with two different relationships An entity with two different relationships A relationship between two entities ANSWER DOWNLOAD EXAMIANS APP
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