The snippet library.
Small, practical examples. Search by task or narrow things down below.
Rank tied scores without gaps
SQLite: DENSE_RANK assigns equal ranks to ties and increments by one for the next distinct score.
SQLite✓ Tested
Read a page after a known unique key
SQLite: A keyset predicate avoids scanning and discarding an increasing offset on a suitable index.
SQLite✓ Tested
Read named columns from a table
SQLite: Choose the columns needed and request a deterministic row order.
SQLite✓ Tested
Read the last value of the complete partition
SQLite: Specify an unbounded-following frame so LAST_VALUE does not stop at the current row.
SQLite✓ Tested
Read the next row’s value
SQLite: LEAD reads a later ordered row without a self join and supports a fallback at the end.
SQLite✓ 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
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
Reference a parent identified by two columns
SQLite: A composite foreign key checks the complete referenced key rather than either column independently.
SQLite✓ Tested
Reject a negative quantity with CHECK
SQLite: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
SQLite✓ Tested
Reject duplicate business identifiers
SQLite: A UNIQUE constraint protects a business key independently of the primary key.
SQLite✓ Tested
Remove dependent rows with a declared cascade
SQLite: ON DELETE CASCADE removes children when their referenced parent is deleted.
SQLite✓ Tested