Results for “ff-only”

GoMaps & sets

Count repeated words ↗

Count repeated words using a complete Go program with explicit sample inputs.

Go✓ Tested

SQLExpressions & aggregates

Count rows per category ↗

Aggregate rows sharing the same category.

GROUP BY✓ Tested

SQLReporting & grouped calculations

Count rows satisfying separate conditions ↗

SQL: SUM over CASE expressions calculates several conditional counts in one scan.

SQL✓ Tested

SQL ServerReporting & grouped calculations

Count rows satisfying separate conditions ↗

SQL Server: SUM over CASE expressions calculates several conditional counts in one scan.

SQL Server✓ Tested

PostgresReporting & grouped calculations

Count rows satisfying separate conditions ↗

Postgres: SUM over CASE expressions calculates several conditional counts in one scan.

Postgres✓ Tested

SQLiteReporting & grouped calculations

Count rows satisfying separate conditions ↗

SQLite: SUM over CASE expressions calculates several conditional counts in one scan.

SQLite✓ Tested

CSmall algorithms & bit operations

Count set bits in an unsigned integer ↗

C: Clearing the lowest set bit on each iteration counts only one iteration per set bit.

C✓ Tested

C#Getting Started

Count the items in a collection ↗

C#: Read the collection’s length instead of hard-coding the loop limit.

C#✓ Tested

SQLGetting Started

Count the rows in a table ↗

SQL: COUNT(*) includes every row, including rows with NULL columns.

SQL✓ Tested

SQL ServerGetting Started

Count the rows in a table ↗

SQL Server: COUNT(*) includes every row, including rows with NULL columns.

SQL Server✓ Tested

PostgresGetting Started

Count the rows in a table ↗

Postgres: COUNT(*) includes every row, including rows with NULL columns.

Postgres✓ Tested

SQLiteGetting Started

Count the rows in a table ↗

SQLite: COUNT(*) includes every row, including rows with NULL columns.

SQLite✓ Tested