Results for “header”
Small, practical examples. Search by task or narrow things down below.
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 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
Give a result column a readable name
SQL: Use AS to label a computed result column.
SQL✓ Tested
Give a result column a readable name
SQL Server: Use AS to label a computed result column.
SQL Server✓ Tested
Give a result column a readable name
Postgres: Use AS to label a computed result column.
Postgres✓ Tested