Oracle Database SQL 1Z0-071: 330 Practice Questions

This course contains the use of artificial intelligence. Can you explain why a query returns an extra row, why a missing value changes an aggregate, or why a transaction keeps a change you expected to undo? This practice course helps you work through those decisions while preparing for Oracle Database SQL 1Z0-071.

You receive 330 original questions in six tests. Four focused practice tests contain 51 questions each. Two mixed mock exams contain 63 questions each, with a 120-minute setting and a 63% passing setting matching the English exam structure checked in October 2026. Topic allocations are designed for this course; they are not official exam weights or a prediction of your exam score.

What you will practice

• Construct and repair SELECT statements, filters, aliases and reliable ordering.
• Trace character, numeric and date functions, conversion and NULL behavior.
• Count rows and groups correctly across joins, aggregates, subqueries and set operations.
• Reason through inserts, updates, deletes, MERGE, multitable inserts and transaction boundaries.
• Apply constraints and work with tables, views, indexes, synonyms, sequences, privileges and dictionary metadata.

Every question includes feedback for each answer choice, an overall explanation and a study tip. Some questions ask for a result; others ask you to select a valid repair, compare conditions or identify a boundary case. Multiple-answer questions explicitly tell you how many choices to select.

Start with the focused tests to identify gaps. Then attempt a mixed mock under timed conditions, review the rules behind your mistakes and use the second mock to test a different set of conditions. Repeating a remembered answer is less useful than explaining why the other choices fail.

This is a practice-question course, with no video lectures. It assumes basic SQL familiarity. Examples use Oracle Database 19c SQL behavior as their reference baseline; optional hands-on practice in your own Oracle environment can deepen your understanding. The course covers the published SQL exam topics rather than database administration or PL/SQL programming.

AI tools assisted with drafting and artwork. The final questions and explanations were edited and checked against Oracle documentation. This independently produced course is not sponsored or endorsed by Oracle. It does not contain actual exam questions or guarantee a passing score.