26. What are the third-party tools that are used in SQL Server? The following is the list of third-party tools that are used in SQL Server: SQL CHECK SQL DOC 2 SQL Backup 5 SQL Prompt Litespeed 5.0 SQL Join Interview Questions 27. What is SQL JOINS? The SQL JOIN component joins ...
Practice with solution of exercises on SQL JOINS with LEFT JOIN, RIGHT JOIN, LEFT OUTER JOIN, RIGHT OUTER JOIN, FULL OUTER JOIN, SELF JOIN, EQUI JOIN NON EQUI JOIN, CROSS JOIN, NATURAL JOIN, and more from w3resource.
What are the different types of joins in SQL Server? SQL Server supports several types of joins:INNER JOIN,LEFT JOIN(orLEFT OUTER JOIN),RIGHT JOIN(orRIGHT OUTER JOIN),FULL JOIN(orFULL OUTER JOIN), andCROSS JOIN. Each join type retrieves data differently based on the relationships between t...
Practical SQL Query Interview Questions (SQL Server Queries examples with answers) In this part, we will see SQL practice questions which contain both complex SQL queries interview questions and basic SQL Interview Questions. Let’s see important SQL queries for interview 76. How to get unique rec...
SQL Server Interview Questions and Answers – Part 3 What is a NOLOCK? Using the NOLOCK query optimiser hint is generally considered good practice in order to improve concurrency on a busy system. When the NOLOCK hint is included in a SELECT statement, no locks are taken when data is ...
It's a best practice to copy the contents of the XML to a table variable to avoid repeated, inefficient access to the XML (if you're going to access the XML only once, though, just run the OPENXML query without creating the table variable first). The second statement in Figure 3 ...
Allowing the query optimizer to determine which indexes, if any, to use in the query execution plan is the recommended best practice. Using the NOEXPAND View Hint When SQL Server processes queries that refer to views by name, the definitions of the views normally are expanded until they refer...
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...
Overview: With consistent practice, you can move to an intermediate level within a few months. Focus areas: Complex queries involving joins, subqueries, and aggregations, understanding relational database concepts, and basic performance tuning. Resources: Intermediate courses, project-based learning, and...
You might define a predicate function that joins with another table and/or invokes a function. If the security policy is created with SCHEMABINDING = ON (the default), then the join or function is accessible from the query and works as expected without any extra permission checks. If the ...