Results for “Ownership & optional values”
Small, practical examples. Search by task or narrow things down below.
Read the smallest and largest values
SQL: Use MIN and MAX without sorting and fetching every row.
SQL✓ Tested
Read the smallest and largest values
SQL Server: Use MIN and MAX without sorting and fetching every row.
SQL Server✓ Tested
Read the smallest and largest values
Postgres: Use MIN and MAX without sorting and fetching every row.
Postgres✓ Tested
Read the smallest and largest values
SQLite: Use MIN and MAX without sorting and fetching every row.
SQLite✓ Tested
Read updated base-table values through a view
SQL: An ordinary view reflects later changes to its underlying data.
SQL✓ Tested
Read updated base-table values through a view
SQL Server: An ordinary view reflects later changes to its underlying data.
SQL Server✓ Tested
Read updated base-table values through a view
Postgres: An ordinary view reflects later changes to its underlying data.
Postgres✓ Tested
Read updated base-table values through a view
SQLite: An ordinary view reflects later changes to its underlying data.
SQLite✓ Tested
Read values from an inserted row
Use RETURNING to retrieve an automatically assigned row ID.
RETURNING✓ Tested
Read values generated by INSERT
Capture an IDENTITY value with OUTPUT.
OUTPUT✓ Tested
Read values until a condition changes
Read values until a condition changes in a complete Rust program using the standard library.
Rust✓ Tested
Reject infinite and NaN numeric values
C++: std::isfinite excludes special floating-point values.
C++✓ Tested