SQL interview questions are asked in almost all interviews because database operations are very common in applications. SQL stands for Structured Query Language, which is a domain-specific programming language used for database communications and relational database management. SQL consists of standard c...
BACKUP (Transact-SQL) Provides answers to basic questions that are related to backups. Provides examples of different kinds of backup and restore operations. Backup Devices (SQL Server) Provides a great reference for understanding various backup devices, backing up to a network share, Azure blob ...
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Examine the structures for the tables as given here and answer the questions 61 to 64. SQL> DESC employees Name Null? Type --- --- --- EMPLOYEE_ID NOT NULL NUMBER(6) FIRST_NAME VARCHAR2(20) LAST_NAME NOT NULL VARCHAR2(25) EMAIL NOT NULL VARCHAR2(25) PHONE_NUMBER VARCHAR2(20) ...
Common SQL Interview Questions: Explore a curated list of frequently asked questions to ace your next interview. Query-Based Interview Challenges: Solve complex query scenarios to demonstrate your problem-solving skills. Quick Reference Guide SQL Cheat Sheet: A concise guide summarizing key SQL commands...
Basic SQL Introduction The SQL Tutorial for Data Analysis Learn to answer questions with data to solve challenging problems. Start Now Lesson 1 Using SQL in Mode Learn to use Mode's Query Editor to run SQL queries against data in a relational database. ...
great help. I was interviewing for a new position recently and had trouble answering some complicated questions on the spot. Every type of question asked at my interview was in this book.Now I practice the Intermediate and Advanced problems once a week and am able to solve these within ...
Couple of questions on SQL Server 2008 - Beginner Covert sql output into excel and schedule the automate job that runs every friday and send email with attachment . Coverting UTC date time to local date time in sql server CR and LF not working in a SELECT statement create a job without sq...
Solve each of the problems below, and put your completed solutions into proj1.sql Check that your solution is correct by verifying against the example outputs and by using the check_qX() functions Test that your proj1.sql file will load without error into a database containing just the ...
Basic SQL Questions 1. What are the types of SQL commands? SQL commands are grouped into the following categories: DDL (Data Definition Language): Commands like CREATE, ALTER and DROP that define or modify database structure. For example, creating a new table in a database involves a CREATE...