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NO ACTION: Prevents the update or delete operation if there are any related rows in the child table. These questions and concepts cover a broad range of advanced SQL topics such as window functions, joins, normalization, subqueries, and transaction management. Mastery of these areas will demonstra...
4,690 questions 1 answerOne of the answers was accepted by the question author. A Simple SQL Query I have the following table:- I want Col 1 and Col 2 where Col2 =1 and the corresponding all the values of Col 1 where Col 1 =2. But this is an example. I can find 1st part (...
That was necessary for the first query to work, but now picking the top 1 from that list will give you the highest salary not the the 10th highest salary. Therefore, the second query reorders the 10 records in ascending order (which the default sort order) and then selects the top ...
20,051 questions with SQL Server-related tags Sort by: Updated Updated Created Answers 0 answers SQL Server 2022 error when downloading – taking more than 24 hours and still not resolved! From my research, it seems that everyone is facing this issue, yet there is still no solution. ...
20,122 questions with SQL Server-related tags Sort by:Updated UpdatedCreatedAnswers 1 answer Restore is shutting the sql server down. In the past when ever I restored the training system with backup of our production SIS I had to turn off the service and shut down the application pool or ...
Query Store helps you better track performance history, troubleshoot query plan related issues, and enable new capabilities in Azure SQL Database, Azure SQL Managed Instance, and SQL Server 2022 (16.x). CTP 2.1 introduces Query Store enabled by default for new databases. If you need to ...
SQL stands for Structured Query Language , and it is used to communicate with the Database. This is a standard language used to perform tasks such as retrieval, updation, insertion and deletion of data from a database. 7. What is a unique key?
FAQ about SQL statements,Hologres:This topic provides answers to some frequently asked questions about common error codes in Hologres. This topic also provides solutions for business personnel to quickly locate issues and perform trou...
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?