Structured Query Language is the main part of the relational database, which can be utilized for gaining access to the database and also plays a major role in the management of the database. On the other hand, MySQL is a Relational Database Management System like SQL Server, Informix, and...
Below is the syntax of a subquery. The subquery executes before the main query. Q9: Difference between correlated query and subquery in SQL Server. Correlated Queries are one of the types of subqueries where it output of the query is dependent on the outer query. In this case, the outer...
43. Which of the following statetments are true about the usage of GROUP BY columns in a subquery?Subqueries can contain GROUP BY and ORDER BY clauses. Subqueries cannot contain GROUP BY and ORDER BY clauses. Subqueries can contain ORDER BY but not the GROUP BY clause. Subqueries cannot ...
Simple View: It is a view based on a single table and does not have a GROUP BY clause or other SQL features. Complex View: It is a view built from several tables and includes a GROUP BY clause as well as functions. Inline View: It is a view built on a subquery in the FROM claus...
Simple View: It is a view based on a single table and does not have a GROUP BY clause or other SQL features. Complex View: It is a view built from several tables and includes a GROUP BY clause as well as functions. Inline View: It is a view built on a subquery in the FROM claus...
24 :: What is sql Correlated Subquery? Correlated Subquery is a subquery that is evaluated once for each row processed by the parent statement. Parent statement can be Select, Update or Delete. Use CRSQ to answer multipart questions whose answer depends on the value in each row processed by...
5. Which is better a CTE or a subquery? Why? 6. Can you tell me replication monitoring tables? 7. How to apply service packs on Active Active cluster? 8. Best practices in applying security patches 9. What is a log reader agent?
18. What is a Subquery? What are its types? 19. What is a Primary Key? 20. What are Constraints in SQL? 21. What are Tables and Fields? 22. What is the difference between SQL and MySQL? 23. What is SQL? 24. What is RDBMS? How is it different from DBMS? 25. What is DBMS?
In Microsoft SQL Server, the Query Analyzer has an option called “Show Execution Plan” (located on the Query drop down menu). If this option is turned on, it will display query execution plans in a separate window when a query is run....
9. What is a subquery? Data that would be used in the primary query as a situation to further limit the data that can be retrieved is returned by a sub-query. With operators like =, >,, >=, =, etc., a subquery can be combined with assertions like update, select, delete, and in...