Informatics Practices
Which SQL statement do we use to find out the total number of records present in the table ORDERS ?
- SELECT * FROM ORDERS;
- SELECT COUNT(*) FROM ORDERS ;
- SELECT FIND (*) FROM ORDERS ;
- SELECT SUM() FROM ORDERS ;
SQL Queries
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Answer
SELECT COUNT(*) FROM ORDERS ;
Reason — The COUNT() function in SQL counts the number of rows or records in a table. When used with the asterisk (*), it counts all rows in the table, including duplicates and nulls. Therefore, SELECT COUNT(*) FROM ORDERS will return the total number of records in the ORDERS table.
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