Results for “SQL”
Small, practical examples. Search by task or narrow things down below.
Calculate each group’s numeric spread
SQLite: Subtract MIN from MAX to report the difference between extremes.
SQLite✓ Tested
Combine results while retaining duplicates
SQL: UNION ALL does not spend work removing equal rows.
SQL✓ Tested
Combine results while retaining duplicates
SQL Server: UNION ALL does not spend work removing equal rows.
SQL Server✓ Tested
Combine results while retaining duplicates
SQLite: UNION ALL does not spend work removing equal rows.
SQLite✓ Tested
Combine text values with a separator
SQL: Use the concatenation operator supported by the selected SQL dialect.
SQL✓ Tested
Combine text values with a separator
SQL Server: Use the concatenation operator supported by the selected SQL dialect.
SQL Server✓ Tested
Combine text values with a separator
SQLite: Use the concatenation operator supported by the selected SQL dialect.
SQLite✓ Tested
Commit multiple related changes together
SQL: The first transaction prepares the fixtures. The second commits both updates as one unit.
SQL✓ Tested
Commit multiple related changes together
SQL Server: The first transaction prepares the fixtures. The second commits both updates as one unit.
SQL Server✓ Tested
Commit multiple related changes together
SQLite: The first transaction prepares the fixtures. The second commits both updates as one unit.
SQLite✓ Tested
Compare a row with its own group average
SQL: A correlated aggregate computes a different comparison value for each group.
SQL✓ Tested
Compare a row with its own group average
SQL Server: A correlated aggregate computes a different comparison value for each group.
SQL Server✓ Tested