Results for “missing data”
Small, practical examples. Search by task or narrow things down below.
Enforce a bounded numeric range
SQLite: A named CHECK constraint keeps numeric values inside an inclusive interval.
SQLite✓ Tested
Enforce a relationship between two columns
SQL: A row-level CHECK can require a start value to be no greater than an end value.
SQL✓ Tested
Enforce a relationship between two columns
SQL Server: A row-level CHECK can require a start value to be no greater than an end value.
SQL Server✓ Tested
Enforce a relationship between two columns
Postgres: A row-level CHECK can require a start value to be no greater than an end value.
Postgres✓ Tested
Enforce a relationship between two columns
SQLite: A row-level CHECK can require a start value to be no greater than an end value.
SQLite✓ Tested
Enforce uniqueness with a dedicated index
SQL: A unique index rejects a duplicate combination independently of query plans.
SQL✓ Tested
Enforce uniqueness with a dedicated index
SQL Server: A unique index rejects a duplicate combination independently of query plans.
SQL Server✓ Tested
Enforce uniqueness with a dedicated index
Postgres: A unique index rejects a duplicate combination independently of query plans.
Postgres✓ Tested
Enforce uniqueness with a dedicated index
SQLite: A unique index rejects a duplicate combination independently of query plans.
SQLite✓ Tested
Escape a single URL parameter value
PowerShell: EscapeDataString encodes one value without treating it as a complete URL.
PowerShell✓ Tested
Escape a URL query value
C#: EscapeDataString percent-encodes one value rather than an entire URL.
C#✓ Tested
Expand a JSON array into rows
Iterate array elements using a table-valued function.
json_each✓ Tested