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What SQL data type does Oracle assign to count(*) in a query like select count(*) from table? Does this depend on the count size?
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The SQL COUNT() function returns the number of rows in a table satisfying the criteria specified in the WHERE clause. It sets the number of rows or non NULL column values. COUNT() returns 0 if there were no matching rows. Syntax: COUNT(*) COUNT( [ALL|DISTINCT] expression )
The COUNT function counts the number of cells that contain numbers, and counts numbers within the list of arguments.
SQL Server COUNT() Function The COUNT() function returns the number of records returned by a select query. Note: NULL values are not counted.
COUNT(*) returns the number of rows in a specified table, and it preserves duplicate rows. It counts each row separately. This includes rows that contain null values.
The value is an integer; Oracle only has a NUMBER data type.
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