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What is the likely data sparsity of the EMP _ SEX column? What indexes should you create? Write the required SQL commands.
What is the likely data sparsity of the EMPSEX column?
What indexes should you create? Write the required SQL commands.
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The Database Relational Model A Retrospective Review And Analysis
Authors: C. J. Date
1st Edition
0201612941, 978-0201612943
