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- What is SQL? SQL stands for Structured Query Language. It is a language used to interact with the database, i.e to create a database, to create a table in the database, to retrieve data or update a table in the database etc.
- What is a Database? A Database is defined as a structured form of data which is stored in a computer or data in an organised manner and can be accessed in various ways.
- Does SQL support programming language features ? It is true that SQL is a language but it does not support programming as it is not a programming language, it is a command language.
- What are the differences between SQL and PL/SQL? Ans: Some common differences between SQL and PL/SQL are as shown below: SQL. PL/SQL. SQL is a query execution or commanding language.
5 days ago · By tackling these challenging exercises, users can refine their SQL skills and tackle real-world data analysis scenarios with greater confidence and efficiency. 1. Write a query to create a view named Total_Sales that displays the total sales amount for each product along with their names and categories. Query:
5 days ago · Here's an essential guide to the top 20 frequently asked database interview questions, covering critical concepts such as DBMS types, RDBMS, normalization, keys, and SQL commands. It discusses the distinctions between primary and unique keys, and normalization vs. denormalization, explaining their significance in database management. The post also explores advanced topics like ACID properties ...
1 day ago · Start with 20 Basic SQL Questions for Practice. Below are some of the most commonly asked SQL queries in interviews from various fields. Get a timer to track your progress and start practicing. Q-1. Write an SQL query to fetch “FIRST_NAME” from the Worker table using the alias name <WORKER_NAME>. Ans.
3 days ago · Hide Answer. SQL injection is a flaw in a code that allows attackers to take control of back-end processes and access, retrieve, and delete sensitive data stored in databases. This strategy is widely utilized using data-driven apps to get access to sensitive data and execute administrative tasks on databases. 4.
- This is a straightforward question that requires you to give a duration for which you have worked remotely. For example, if you have been working r...
- The interviewer wants to assess the ease with which you can keep in touch and seamlessly work with a remote team. Outline your experience working w...
- The interviewer wants to assess whether you can complete tasks on time without being monitored. Outline your turn-around time for different tasks.
- This question is an extension of the previous question. The interviewer wants to ensure that you are well-organized and can deliver tasks on time....
- The interviewer may want to know what resources you may need to perform your work efficiently. These may include access to specific software. Be su...
- This is an extension of the previous question. Think of a scenario where the lack of a particular resource was a challenge. Maybe you found a free...
- The interviewer wants to know that you are serious about your work and that you won’t be constantly disturbed. Unlike an office, a house may have s...
- The remote developer jobs interview questions are designed to assess the body of work that you have successfully completed in the remote environmen...
- Through the remote programmer jobs interview questions, the interviewer wants to know whether there are sustainable and strong reasons for you to c...
- Outline skills like task-focus, time-management, careful planning, and the ability to shut out distractions. Additionally, you can also talk about...
4 days ago · The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database. Note: Not all database systems support the WITH clause. Syntax: In this query, WITH clause is used to define a temporary relation temporaryTable that has only 1 attribute averageValue. averageValue holds the average value of column Attr1 described in relation Table.
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3 days ago · Answer: SQL Server is one of the leading relational database management systems developed by Microsoft. It enables other applications running on the same computer as the SQL Server or other remote computers to store and retrieve data from a relational database. 2. List and explain types of commands used in SQL Server.
