What is denormalization in a database?
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Why is normalization important?
wt is the diff b/w greast and max ,least and min? wt is the diff b/w case and decod?
4 Answers Oracle, TCS, Tecnics,
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3. Select sum(a) sum_1,max(a) max_1 ,count(a) count_1 from ( ( select 1 a from dual union all Select to_number(‘2011’) a from dual union all select 1 a from dual) union select 2 b from dual);
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