Results for “id”
Small, practical examples. Search by task or narrow things down below.
Block deletion of a referenced parent
Postgres: The default foreign-key action prevents deletion while a child still refers to the parent.
Postgres✓ Tested
Block deletion of a referenced parent
SQLite: The default foreign-key action prevents deletion while a child still refers to the parent.
SQLite✓ Tested
Branch on a threshold
Arduino / C: Branch on a threshold on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Build a query from several named stages
SQL: Separate row selection from aggregation using two common table expressions.
SQL✓ Tested
Build a query from several named stages
SQL Server: Separate row selection from aggregation using two common table expressions.
SQL Server✓ Tested
Build a query from several named stages
Postgres: Separate row selection from aggregation using two common table expressions.
Postgres✓ Tested
Build a query from several named stages
SQLite: Separate row selection from aggregation using two common table expressions.
SQLite✓ Tested
Cache repeated pure function calls
Python: Use lru_cache to avoid recomputing results for identical hashable arguments.
Python✓ Tested
Calculate a CRC-8 over a byte sequence
Arduino / C: This implementation uses polynomial 0x07, initial zero, and no reflection.
Arduino / C✓ Tested
Calculate a cumulative integer percentage
SQL: Divide a running window sum by the complete total using a unique ordering key.
SQL✓ Tested
Calculate a cumulative integer percentage
SQL Server: Divide a running window sum by the complete total using a unique ordering key.
SQL Server✓ Tested
Calculate a cumulative integer percentage
Postgres: Divide a running window sum by the complete total using a unique ordering key.
Postgres✓ Tested