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Mar 21, 2024 · Question 4: Select Freelancer Info for Projects Due in 2024. Question 5: Show All Employees and Their Managers. Question 6: Show Therapists and Their First and Second Languages. Question 7: Show the Number of Freelancers with Assigned Tasks. Question 8: Show the Number of Tasks by Task Type and Subtype.
Nov 24, 2021 · Table of Contents. Table for Questions 1, 2, and 3. Interview Question 1: Find the Average Salary by Department. Solution Query. Solution Query Explanation. The Result Table. The Result Explanation. You can interpret the remaining rows in the result in the same way. Interview Question 2: Find the Highest Salary by Department.
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SQL Server provides three type of triggers: Data manipulation language (DML) triggers which are invoked automatically in response to INSERT, UPDATE, and DELETE events against tables. Data definition language (DDL) triggers which fire in response to CREATE, ALTER, and DROP statements. DDL triggers also fire in response to some system stored ...
Mar 14, 2017 · It contains over 600 interactive SQL exercises to help you review and practice SQL before an interview. In this article, I’ll help you prepare for the by going over some common questions and SQL exercises that recruiters use during the interview process. Basic SQL Whiteboard Questions for Job Interviews
Nov 9, 2022 · The two main phases include creating the request object and, secondly, sending the response to the browser. 9. Define the Model logic. Model logic is an essential part of the application that handles the logic for the application data. It helps retrieve data and store them in the database. 10. Define the View logic.
Jan 3, 2024 · The steps are as follows: Step 1: Navigate to the bin folder of the PostgreSQL installation path. C:\>cd C:\Program Files\PostgreSQL\10.0\bin. Step 2: Execute pg_dump program to take the dump of data to a .tar folder as shown below: pg_dump -U postgres -W -F t sample_data > C:\Users\admin\pgbackup\sample_data.tar.
