Results for “Context & shared state”
Small, practical examples. Search by task or narrow things down below.
Rank tied scores with competition gaps
SQLite: RANK leaves a gap after tied rows, unlike DENSE_RANK.
SQLite✓ Tested
Rank tied scores without gaps
SQL: DENSE_RANK assigns equal ranks to ties and increments by one for the next distinct score.
SQL✓ Tested
Rank tied scores without gaps
SQL Server: DENSE_RANK assigns equal ranks to ties and increments by one for the next distinct score.
SQL Server✓ Tested
Rank tied scores without gaps
Postgres: DENSE_RANK assigns equal ranks to ties and increments by one for the next distinct score.
Postgres✓ Tested
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
SQL: A keyset predicate avoids scanning and discarding an increasing offset on a suitable index.
SQL✓ Tested
Read a page after a known unique key
SQL Server: A keyset predicate avoids scanning and discarding an increasing offset on a suitable index.
SQL Server✓ Tested
Read a page after a known unique key
Postgres: A keyset predicate avoids scanning and discarding an increasing offset on a suitable index.
Postgres✓ 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 a text file
Open a UTF-8 text file and read its contents. A context manager closes the file automatically, even if reading fails.
file✓ Tested
Read the last value of the complete partition
SQL: Specify an unbounded-following frame so LAST_VALUE does not stop at the current row.
SQL✓ Tested
Read the last value of the complete partition
SQL Server: Specify an unbounded-following frame so LAST_VALUE does not stop at the current row.
SQL Server✓ Tested