Results for “SQLite”
Small, practical examples. Search by task or narrow things down below.
Combine results while retaining duplicates
SQLite: UNION ALL does not spend work removing equal rows.
SQLite✓ 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
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
SQLite: A correlated aggregate computes a different comparison value for each group.
SQLite✓ Tested
Compute an integer weighted average
SQLite: Multiply before summing and guard a zero total weight with NULLIF.
SQLite✓ Tested
Copy selected rows into another table
SQLite: INSERT SELECT performs a set-based copy with an explicit destination column list.
SQLite✓ Tested
Count distinct values within a result
SQLite: COUNT DISTINCT counts distinct non-null values.
SQLite✓ Tested
Count rows satisfying separate conditions
SQLite: SUM over CASE expressions calculates several conditional counts in one scan.
SQLite✓ Tested
Count the rows in a table
SQLite: COUNT(*) includes every row, including rows with NULL columns.
SQLite✓ Tested
Create a table and insert its first row
SQLite: Define column types and a primary key, then insert one row using an explicit column list.
SQLite✓ Tested
Create an index for an equality filter
SQLite: A nonunique index can support lookups on a frequently filtered column.
SQLite✓ Tested
Create an index matching filter and ordering columns
SQLite: Place the equality-filter column before the ordering column in this composite index.
SQLite✓ Tested