of the number of orders each customer has: CREATEVIEWcustomer_order_countsASSELECTcustomers.customer_id,first_name,count(orders.customer_id)ASorder_countFROMcustomersLEFTOUTERJOINordersON(customers.customer_id=orders.customer_id)GROUPBYcustomers.customer_id; SQL So for example, Nancy has 3 orders: SE...
RDBMS stands for Relational Database Management System. RDBMS store the data into the collection of tables, which is related by common fields between the columns of the table. It also provides relational operators to manipulate the data stored into the tables. Example: SQL Server. 3. What is ...
SQL Job Interview Questions and Answers 1 :: What is SQL (Structured Query Language)? SQL is an English like language consisting of commands to store, retrieve, maintain & regulate access to your database.Read More 2 :: What is the SQL*Plus? SQL*Plus is an application that recognizes &...
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...
Set 1 - SQL Interview Questions and Answers 1) State the different subsets of SQL. There are basically three subsets of SQL: Data Definition Language, or DDL, which lets the candidate carry out different functions and perform tasks on the Database, is one of the most important subsets of ...
Frequently Asked SQL Interview Questions 1. What is a Database? Adatabase refers to a structured data collection that can be stored, managed, and retrieved from a remote or local computer system. Databases can become pretty complex and are built with a fixed design and modeling approach. ...
15+ interview SQL questions, including both technical and non-technical questions, along with their answers.
41 Essential SQL Interview Questions * Toptal sourced essential questions that the best SQL developers can answer. Driven from our community, we encourage experts to submit questions and offer feedback. Hire a Top SQL Developer Now is an exclusive network of the top freelance software developers, ...
6.What are different types of indexes?(Mostly asked in Interview Questions For SQL) Answer: There are following types of indexes used while Indexing in SQL: 1.Normal index 2.Unique Index 3.Bit Map Index 4.Composite Index 5.B-Tree Index(Oracle considered Normal indexes as B-Tree Indexes) ...
Softwaretesting-QuestionsandAnswers-SQLInterviewQuestions Q.WhatdoesSQLstandfor? A.StructuredQueryLanguage Q.Whatisaprimarykey? A.Primarykey:EachrowofthedatainatableuniquelyidentifiedbyaPrimaryKey Thecolumn(columns)thathascompletelyuniquedatathroughoutthetableis ...