Comprehensive, community-driven list of essential SQL interview questions. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next SQL interview ahead of time.
1. What is Pattern Matching in SQL? SQL pattern matching provides for pattern search in data if you have no clue as to what that word should be. This kind of SQL query uses wildcards to match a string pattern, rather than writing the exact word. The LIKE operator is used in ...
There are a lot ofSQL Interview Questionsapart from this, which the candidates must practice qualifying for the interview. For more information on SQL training and certification, please contact us atClick Hereor chat with our course expert. If you’re looking for other training and certifications ...
When you have completed the free practice test, click 'View Results' to see your results. Good luck! Answered 0 of 15 questions 0:00 Hide timer 1. Which of the following is the correct syntax for dropping/deleting the View Customer_View? Customer_View DROP; DELETE VIEW Customer_View...
Answer: C. The syntax for removing the Ambiguous column issue is: table_alias.column_name30.Which of the following is the most appropriate about the following query? (Consider the table structures as given)SQL> DESC employees Name Null? Type --- --- --- EMPLOYEE_ID NOT NULL NUMBER(6)...
SQL quiz questions. For example: “What is a primary key?” Or “List the different types of JOINs!” That’s a stupid type of SQL tech assessment — as it focuses on theory and not on practice. Still, some companies… you know. Take-home SQL assignment. You get a more complex task...
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Here’s the formula for it: Recall = (True positive)/(True positive + False negative) 28. What are the ideal situations in which t-test or z-test can be used? It is a standard practice that a t-test is used when there is a sample size less than 30 and the z-test is ...
Elicitation is a practice of collecting requirements from end customers and stakeholders; it is a requirement-gathering process. Various techniques involved in this are: 1. Brainstorming 2. Document analysis 3. Focus group 4. Interface analysis 5. Interview 6. Observation 7. Prototyping 8. Requirem...
We all are different and have different ways to prepare for the Microsoft Administering Azure SQL Solutions exam. Time yourself and develop your exam techniques is the best way to proceed. To identify the preparation mistakes and keep yourself on the right path, you need regular practice with DP...