Results for “diff”
Small, practical examples. Search by task or narrow things down below.
Find values present in exactly one set
Python: Use symmetric difference when either side can contain unmatched values.
Python✓ Tested
Format a timestamp
Extract a year and month from ISO timestamp text.
strftime✓ Tested
Format a timestamp with to_char
Produce a fixed numeric date string.
to_char✓ Tested
Generate a bounded sequence recursively
Use a recursive CTE with a recursion limit.
recursive CTE✓ Tested
Generate a sequence of numbers
Create rows without a stored table.
generate_series✓ Tested
Generate combinations across two collections
Python: Use product for a Cartesian product; this differs from selecting combinations within one collection.
Python✓ Tested
Generate every combination of two sets
SQL: CROSS JOIN creates one result per possible pair, so the output size is the product of the input sizes.
SQL✓ Tested
Generate every combination of two sets
SQL Server: CROSS JOIN creates one result per possible pair, so the output size is the product of the input sizes.
SQL Server✓ Tested
Generate every combination of two sets
Postgres: CROSS JOIN creates one result per possible pair, so the output size is the product of the input sizes.
Postgres✓ Tested
Generate every combination of two sets
SQLite: CROSS JOIN creates one result per possible pair, so the output size is the product of the input sizes.
SQLite✓ Tested
Generate numbers with a recursive CTE
Build a bounded sequence using SQL recursion.
recursive CTE✓ Tested
Get the latest row in each group
Select one ordered row per key with DISTINCT ON.
DISTINCT ON✓ Tested