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wrote...
Posts: 109
2 months ago
The keyword IS NULL can be used to help ________.

• count the number of columns in a table

• count the number of rows in a table

• count the number of null values in a column

• count the number of values in a column
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Database Processing: Fundamentals, Design, and Implementation
Edition: 15th
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2 months ago
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count the number of null values in a column
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2 months ago
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