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61.
What are clusters?
Clusters are groups of one or more tables physically stores together to share common columns and are often used together.
62.
What is an Integrity Constrains ?
An integrity constraint is a declarative way to define a business rule for a column of a table.
63.
What is an Extent ?
An Extent is a specific number of contiguous data blocks, obtained in a single allocation, and used to store a specific type of information.
64.
What are the different types of Record Groups?
- Query Record Groups
- NonQuery Record Groups
- State Record Groups
65.
What is the Maximum allowed length of Record group Column?
Record group column names cannot exceed 30 characters.
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