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CompTIA Data+ DA0-002 (V2) Practice Question

A data analyst is creating a sales fact table that is expected to grow to roughly 1.9 billion rows over the next few years. The DBMS offers the standard SQL integer types SMALLINT (2 bytes), INT (4 bytes) and BIGINT (8 bytes). Management has asked for the smallest numeric data type that can still uniquely identify every future row with a non-negative, whole-number surrogate key. Which data type should the analyst choose for the key column?

  • BIGINT

  • INT

  • DECIMAL(10,0)

  • SMALLINT

CompTIA Data+ DA0-002 (V2)
Data Concepts and Environments
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