Here, you will find a collection of real-world Interview questions asked in companies like Google, Oracle, Amazon, and Microsoft, etc. Each question comes with a perfectly written answer inline, saving your interview preparation time. It also covers practice problems to help you understand the ba...
blog Top 30 SQL Server Interview Questions (2025) This comprehensive guide provides a curated list of SQL Server interview questions and answers, covering topics from basic concepts to advanced techniques, to help you prepare for your next data-related interview. Kevin Babitz 14 minSee More ...
Therefore, you must validate all user input and carefully review code that executes constructed SQL commands in the server that you use. Coding best practices are described in the following sections in this article.Validate all inputAlways validate user input by testing type, length, format, and ...
To resolve this issue, inspect the file and the data types you chose. Thismapping tablehelps to choose a correct SQL data type. As a best practice, specify mapping only for columns that would otherwise resolve into the VARCHAR data type. Avoiding VARCHAR when possible leads to better performan...
Rewriting Transact-SQL for one or more transactions involved in the deadlock can also help prevent deadlocks. Breaking apart explicit transactions into smaller transactions requires careful coding and testing to ensure data validity when concurrent modifications occur. Learn more about each of these appro...
Learn how to create and query relational databases using SQL in just two hours. See DetailsStart Course Course Intermediate SQL 4 hr 336.1KAccompanied at every step with hands-on practice queries, this course teaches you everything you need to know to analyze data using your own SQL code ...
SQL Server 2016 (13.x) introduces real-time operational analytics, the ability to run both analytics and OLTP workloads on the same database tables at the same time. Besides running analytics in real time, you can also eliminate the need for ETL and a data warehouse....
An online tutorial is a great way to get familiar with the visual components of coding in SQL while learning SQL vocabulary. Let’s take a look at some of the most popular video options out there. YouTube. We all know YouTube is a treasure trove for tutorials, and SQL videos are no ...
Applies to: Databricks SQL Databricks Runtime 12.2 and aboveAll error classes returned by Azure Databricks are associated with a 5 character SQLSTATE. A SQLSTATE is a SQL standard encoding for error conditions commonly used by JDBC, ODBC, and other client APIs.A...
No.Questions 1 What is a database? 1 What is DBMS? 1 What is SQL? 1 What is PL/SQL? 1 What is the difference between SQL and PL/SQL? 1 What is RDBMS? 1 What is a database table? 1 What is a query? 1 What is subquery? 1 What are the types of subquery?