Results for “row_number”
Small, practical examples. Search by task or narrow things down below.
Keep parent rows while filtering joined children
Postgres: Put a child filter in ON when unmatched parents must remain in the result.
Postgres✓ Tested
Keep parent rows while filtering joined children
SQLite: Put a child filter in ON when unmatched parents must remain in the result.
SQLite✓ Tested
Keep rows matching a condition
SQL: Use WHERE to select rows with a particular category.
SQL✓ Tested
Keep rows matching a condition
SQL Server: Use WHERE to select rows with a particular category.
SQL Server✓ Tested
Keep rows matching a condition
Postgres: Use WHERE to select rows with a particular category.
Postgres✓ Tested
Keep rows matching a condition
SQLite: Use WHERE to select rows with a particular category.
SQLite✓ Tested
Keep unmatched rows with LEFT JOIN
Show every product even when stock is missing.
LEFT JOIN✓ Tested
Label rows with CASE
Derive a readable label from a condition.
CASE✓ Tested
Limit the number of container processes
Docker / Compose: The pids-limit setting caps the container’s process count.
Docker / Compose✓ Tested
Modify a value through a mutable borrow
Modify a value through a mutable borrow in a complete Rust program using the standard library.
Rust✓ Tested
Narrow a union using typeof
Handle text and numeric values with separate branches.
union✓ Tested
Narrow an object using a type pattern
C#: A successful is pattern introduces a strongly typed local variable.
C#✓ Tested