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Thursday, September 5, 2013

Study Guide for 1Z0-061: Oracle Database 12c: SQL Fundamentals

Several Oracle certification tracks, including the Database Administrator OCA and Database Developer OCA, require that candidates pass a SQL certification exam. At this time, 1Z0-061 is one of three exams currently being offered that fulfil the SQL requirement. There are two other current exams, 1Z0-051 and 1Z0-047, as well as two retired exams: 1Z0-001 and 1Z0-007 that will fulfil the SQL requirement. Retired exams can no longer be scheduled, but if you passed these before they were retired, Oracle Education will still accept them as your SQL requirement.
In addition to the certification requirement, SQL knowledge is an extremely important aspect of working with the Oracle database. If you are new to the Oracle database, this exam makes a really good entry point into the certification process as the SQL Fundamentals exam is one of the least difficult Oracle certification tests that you will experience. This is not to say that the test is not a pushover -- taking it without being prepared is likely to result in failure. This article is intended to provide some insight to assist in your efforts to study for the exam.
The Oracle Education website lists all of the topics that will be covered in the 1Z0-061 exam. There are significant commands and capabilities in Oracle SQL that are not listed there. However, no test questions will deal with material outside of that list. The topics that Oracle Education provides for each exam are always complete. The 12c SQL Fundamentals exam has forty-one topics in ten subject areas. The test itself will have seventy-five multiple-choice or multiple-answer questions and you'll have two hours to complete it. The passing score is sixty-five percent. For the multiple-answer questions, there is no partial credit. Any questions that are left unanswered will count as incorrect. You should never leave any exam question unanswered -- even if that means that you must pick one of the choices at random.
The majority of the exam questions will have one or more SQL statements involved -- either as part of the question or as answer choices. You must be able to differentiate between functional and non-functional SQL without having an Oracle instance to execute them on. Often one or more of the SQL statements among the answers will have a flaw that would cause them to generate an error if executed. If you are able to recognize this and eliminate them, determining the correct answer is easier. Because this is Oracle's SQL Fundamentals exam, the vast majority of the SQL statements presented will be both straightforward and relatively small. You will have to understand how to use several common SQL functions. While most of the test is about DML statements, you must understand the DDL syntax to create several common database object types. Most of the functionality covered by this exam involves common SQL tasks that database developers or administrators are likely to use reasonably often.
Many of the questions on this exam will have exhibits associated with them. The exhibits often contain a SQL statement or a set of tables that a SQL statement is operating against. They are intended to provide information that may help you to answer the question. Viewing these exhibits takes time and not every one is really required in order to answer the question. The test interface will specifically state that you should view the exhibit and then answer the question. I recommend that you read the question and answers and then view the exhibit. Sometimes you will find that you can skip viewing the exhibit entirely. Even if you do need it, looking at the question and answers first will give you an idea of specifically what to look for when you view the exhibit. Either outcome will save you some time.
The 1Z0-061 SQL Fundamentals exam is designed for entry-level Oracle users. If you study to the point where you have a firm grasp of SQL syntax and practice writing and executing SQL statements against an Oracle instance, you should be able to pass the test. As mentioned above, check out the full topic list on the Oracle Education website and be sure that you have covered all of them before you schedule the test. Good luck on the exam.

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