Results for “Text validation & formatting”
Small, practical examples. Search by task or narrow things down below.
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
Expand a JSON array into rows
Iterate array elements using a table-valued function.
json_each✓ Tested
Expand an array into rows
Use WITH ORDINALITY to retain original element order.
unnest✓ Tested
Explain a sketch with comments
Arduino / C: Use single-line and block comments to document what a sketch does.
Arduino / C✓ Tested
Expose a reusable filtered view
SQL: A view stores a query definition rather than a snapshot of its rows.
SQL✓ Tested
Expose a reusable filtered view
SQL Server: A view stores a query definition rather than a snapshot of its rows.
SQL Server✓ Tested
Expose a reusable filtered view
Postgres: A view stores a query definition rather than a snapshot of its rows.
Postgres✓ Tested
Expose a reusable filtered view
SQLite: A view stores a query definition rather than a snapshot of its rows.
SQLite✓ Tested
Extract part of a date
Read a calendar component with EXTRACT.
EXTRACT✓ Tested
Fade an entire element and its descendants
CSS: Opacity applies to the rendered element as a group, including child text.
CSS✓ Tested
Filter aggregate groups
Keep only categories with multiple products.
HAVING✓ Tested