1. What SQL keyword is used to retrieve unique rows from a result set?
- **Answer:** The SQL keyword used to retrieve unique rows from a result set is `DISTINCT`.
2. What SQL command is used to combine rows from two or more tables based on a related column between them?
- **Answer:** The SQL command used to combine rows from two or more tables is `JOIN`.
3. What SQL function is used to find the maximum value of a column?
- **Answer:** The SQL function used to find the maximum value of a column is `MAX()`.
4. What SQL command is used to create a new database table?
- **Answer:** The SQL command used to create a new database table is `CREATE TABLE`.
5. What SQL keyword is used to specify a condition for grouping rows when using aggregate functions?
- **Answer:** The SQL keyword used to specify a condition for grouping rows is `GROUP BY`.
These SQL concepts are foundational for data manipulation and retrieval in relational database management systems.
