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The use of comparison operators like <,> or = can be done in a subquery. These kinds ofSQL Interview Questionsare a bit difficult to understand and answer accordingly. There are a lot ofSQL Interview Questionsapart from this, which the candidates must practice qualifying for the interview. Fo...
SQL Questions & AnswersSQL Server Express, Encrypting Data, and MoreEdited by Nancy MichellDatabase Sizer ToolsQ Where can I find a database sizer tool that can be used for large SQL Server™ databases?A You should start with the Scalability and Very Large Database Resource Web site . ...
Without a doubt, few technologies in SQL Server cause as much confusion and the spread of misinformation as indexes. This article looks at some of the most asked questions and a few that should be asked but often are not. We’ll be using SQL Server 2016 for the examples and a tool, fo...
Common SQL Interview Questions and Answers Prepare for SQL interviews with commonly asked questions and query-based challenges: Common SQL Interview Questions: Explore a curated list of frequently asked questions to ace your next interview. Query-Based Interview Challenges: Solve complex query scenarios ...
When we execute a query and use theWHEREkeyword on a column that does not have an index, then the SQL Server has to do a full-table scan and check every row to find matches. This is a bad practice because it can be unpredictable in terms of execution time. Therefore this process may...
Answer the questions 37 and 38 that follow the query given below:SQL> DESC employees Name Null? Type --- --- --- EMPLOYEE_ID NOT NULL NUMBER(6) FIRST_NAME VARCHAR2(20) LAST_NAME NOT NULL VARCHAR2(25) EMAIL NOT NULL VARCHAR2(25) PHONE_NUMBER VARCHAR2(20) HIRE_DATE NOT NULL DATE...
Answers are Here Congratulations! You just learned how to use the select command to query a database. Remember! I want to remind you all that if you have other questions you want answered, then post a comment I’m here to help you. ...
SQLAlchemy MCQs: This section contains multiple-choice questions and answers on the various topics of SQLAlchemy.
This article aims to prepare you for such interviews by covering a range of SQL Server questions, from basic concepts to advanced techniques, along with detailed answers and explanations. To learn more about SQL Server, check out thisIntroduction to SQL Servercourse. ...