SQL Server COUNT
In T-SQL, COUNT returns the number of items in a group. COUNT works like the COUNT_BIG function. The […]
Series: SQL Count
SQL Server COUNT DISTINCT
You can count the number of unique values in a column with COUNT DISTINCT. The Microsoft Press book […]
SQL Server Count Duplicates
You may have a need to count the number of duplicates in a column. Perhaps you want to […]
SQL Count NULLs
How many NULLs are there in a column? What would the SQL query be? For small tables you […]