Informatics Practices
Fill in the Blank
The COUNT(*) function provides the total number of …………… within a relation (table) in a relational database.
- Columns
- Unique values
- Not-null values
- Rows
SQL Joins & Grouping
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Answer
Rows
Reason — The COUNT(*) function provides the total number of rows within a relation (table) in a relational database. It counts all rows, including duplicates and NULL values.
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