The use of comparison operators like <,> or = can be done in a subquery. These kinds ofSQL Interview Questionsare a bit difficult to understand and answer accordingly. There are a lot ofSQL Interview Questionsapart from this, which the candidates must practice qualifying for the interview. Fo...
Example: SQL Server. 3. What is SQL? 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? A...
Note that if there are multiple columns, say ID and Name, the column should be explicitly stated in Oracle queries: Select ID from test_a minus select ID from test_b MySQL does not support the except function. However, there is a standard SQL solution that works in all of the above ...
1. Make a note of all node names (and/or IP addresses), SQL Server virtual names along with preferred nodes. If there are more than three nodes you may need to also take note of possible owners for each SQL resource group. For my example assume that I have a cluster with node1 and...
Stored Procedure is a function which contain collection of SQL Queries. Procedure can take inputs , process them and send back output. SQL INTERVIEW QUESTIONS AND ANSWERS 14 | P a g e 51.What are the advantages a stored procedure?
SQL Interview Questions For Freshers SQL Joins SQL Performance Tuning SQL Practice Quiz SQL Tutorials Technology Review Unix Interview Questions Unix Tutorials Tags Basic SQL Queries Complex View difference between simple view and complex view Equi join Inner Join Logical table in SQL Non ...
name given to a table or column which do not exist once the SQL statement is executed. Q. What is a view ? A view is a virtual table based on one or more tables. Why Use views ? To restrict data access • To make complex queries easy ...
SQL Server Interview Questions and Answers – Part 2 What is the difference between clustered and a non-clustered index? Aclustered indexis a special type of index that reorders the way records in the table are physically stored. Therefore table can have only one clustered index. The leaf ...
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?
There are two common ways an SQL tech screening can be done. The simpler but less common way is that you get a computer, a data set, and a task. While you are solving the task, the interviewers are listening and asking questions. A little trial-and-error is totally fine, as long as...