Besides the chain statements used for insert, update, delete and query, the rest of components of a UQL are clauses that begin with keywords. Clauses can compute and process the results of the preceding statements, and pass new results to subsequent statements or return to user. This chapter will introduce the following clause keywords:

• GROUP BY
• ORDER BY
• SKIP
• LIMIT
• WHERE
• RETURN
• WITH
• UNCOLLECT
• UNION
• UNION ALL
• CALL

All keywords introduced in this chapter are case insensitive.