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Question
If the table PRODUCT has a column PRICE, and PRICE has the data type Numeric (8,2), the value 98765 stored in that field will be displayed by the DBMS as 98765.00.Answer
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Related questions
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Suppose you have created a data model for an airline based on a variety of forms, reports, user interviews, data sources, etc. Your client comes forward with a new desired report that includes passenger weights and a relationship between passengers and employees, neither of which is in your E-R diagram. You should ________.
A) create a new, separate E-R diagram with just the new information
B) add the relationship and the weight attribute to the existing data model
C) add the relationship but not the weight attribute
D) add the weight attribute but not the relationship
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Which of the following is not true about subtype entities?
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ID-dependent entities are a common type of weak entity.
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In a 1:N relationship, the term parent refers to the N side of the relationship.
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A) IS
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Q:
When a table is created using existing data from multiple sources, you are likely to find that the different sources code data in slightly different ways. This is an example of ________.
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Q:
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Q:
The SQL keyword TOP ________.
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B) limits the number of rows retrieved from a table
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Q:
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C) updatability
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Q:
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Q:
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Q:
The SQL INSERT statement can be used to populate normalized tables.