Sql Query To use a ' SELECT ' statement with COUNT() function

To retrieve a count of the record of a specific column from the existing created table. Then we can use a ' SELECT ' statement with COUNT() function.

In 1^st Statement will retrieve the count of total no. of record from the employees' table.

In 2^ndStatement will retrieve the count of the total no. of name from the employees' table, but it will not calculate the name having a null field.

In 3^rd Statement will retrieve the count of total no. of record from the employees' table, where employee_id is greater than 150.

In 4^thStatement will retrieve the count of the total no. of name from the employees' table, where employee_id is greater than 150. but it will not calculate the name having a null field.

Database

Theme

Enter - Select * from table_name;

Output

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Sql Query To use a ' SELECT ' statement with COUNT() function

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