Database Design Using Normalization When building a database from an existing set of tables, we still need to consider normalization principles. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Design Using Normalization We have normalized a table into BCNF if all candidate keys are determinants. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Design Using Normalization Normalization ________ data duplication. eliminates increases reduces maximizes eliminates increases reduces maximizes ANSWER DOWNLOAD EXAMIANS APP
Database Design Using Normalization Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems? The general-purpose remarks column problem The missing values problem The multivalue, multicolumn problem The inconsistent values problem The general-purpose remarks column problem The missing values problem The multivalue, multicolumn problem The inconsistent values problem ANSWER DOWNLOAD EXAMIANS APP
Database Design Using Normalization We use the SQL construct COUNT(*) to count the number of rows in a table. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Design Using Normalization Each answer below shows example data from a table. Which answer is an example of the missing values problem? Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column. Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row. One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column. Three rows have the values Brown, NULL, and Blue in the same column. Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column. Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row. One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column. Three rows have the values Brown, NULL, and Blue in the same column. ANSWER DOWNLOAD EXAMIANS APP
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