Results for “Parsing & byte data”
Small, practical examples. Search by task or narrow things down below.
Include zero counts for missing relationships
SQL Server: Count the non-null child key after a left join so a missing relationship produces zero.
SQL Server✓ Tested
Include zero counts for missing relationships
Postgres: Count the non-null child key after a left join so a missing relationship produces zero.
Postgres✓ Tested
Include zero counts for missing relationships
SQLite: Count the non-null child key after a left join so a missing relationship produces zero.
SQLite✓ Tested
Increment a counter without an unexpected errexit
Bash Scripts: An assignment avoids the zero-result exit status of a standalone arithmetic post-increment.
Bash Scripts✓ Tested
Inspect a substring without allocating a copy
C++: A string_view refers to existing storage and must not outlive that storage.
C++✓ Tested
Inspect a user-defined network’s driver
Docker / Compose: The default driver for a local user-defined network is bridge.
Docker / Compose✓ Tested
Iterate over all regular-expression matches
C++: A regex iterator yields successive matches without manually updating an offset.
C++✓ Tested
Join a parent to pre-aggregated totals
SQL: Aggregate the child rows first to produce at most one joined row per parent.
SQL✓ Tested
Join a parent to pre-aggregated totals
SQL Server: Aggregate the child rows first to produce at most one joined row per parent.
SQL Server✓ Tested
Join a parent to pre-aggregated totals
Postgres: Aggregate the child rows first to produce at most one joined row per parent.
Postgres✓ Tested
Join a parent to pre-aggregated totals
SQLite: Aggregate the child rows first to produce at most one joined row per parent.
SQLite✓ Tested
Join through a lookup table
SQL: Use explicit aliases and join keys when enriching records through two relationships.
SQL✓ Tested