Oracle SQL Interview Questions Master Class

I have conducted more than 100+ Interviews.

Most importantly I myself attended 30+ interviews and kept the interview questions from different Interviewers.

That will be big boast to understand how different interviewer asked questions and what are the frequently asked questions

There are some tough queries / tricks so If you learn them mostly tough queries can be answered

Approximately 3 hours of lecture dedicated to write variety of SQL queries

If you are preparing for SQL Interview or an ETL developers add punch being a ETL + SQL pro-developer and answer most of SQL questions

There are around 150+ mostly asked questions from simple to expert level are discussed. It also includes 12C

Learn SQL from an Architect who worked 19+ years in SQL.

An Oracle Certified Professions (OCP)

Oracle Technology Network (OTN) Points: 12,975 Level: Master

Join the course and learn the important aspects and practical details of SQL and clear the interview with ease

I have kept related questions together so that one can easily memorize.

See you in the Class.

Course covered:

Relational Database concepts

• Explaining the theoretical and physical aspects of a relational database

• Relating clauses in SQL Select Statement to Components of an ERD

• Explaining the relationship between a database and SQL

Restricting and Sorting Data

• Applying Rules of precedence for operators in an expression

• Limiting Rows Returned in a SQL Statement

• Using Substitution Variables

• Using the DEFINE and VERIFY commands

• Sorting Data

Using Conversion Functions and Conditional Expressions

• Applying the NVL, NULLIF, and COALESCE functions to data

• Understanding implicit and explicit data type conversion

• Using the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions

• Nesting multiple functions

Displaying Data from Multiple Tables

• Using Self-joins

• Using Various Types of Joins

• Using Non equijoins

• Using OUTER joins

• Understanding and Using Cartesian Products

Using SET Operators

• Matching the SELECT statements

• Using the ORDER BY clause in set operations

• Using The INTERSECT operator

• Using The MINUS operator

• Using The UNION and UNION ALL operators

Managing Indexes Synonyms and Sequences

• Managing Indexes

• Managing Synonyms

• Managing Sequences

Managing Views

• Managing Views

Managing Objects with Data Dictionary Views

• Using data dictionary views

Retrieving Data using the SQL SELECT Statement

• Using Column aliases

• Using The SQL SELECT statement

• Using concatenation operator, literal character strings, alternative quote operator, and the DISTINCT keyword

• Using Arithmetic expressions and NULL values in the SELECT statement

Using Single-Row Functions to Customize Output

• Manipulating strings with character functions in SQL SELECT and WHERE clauses

• Performing arithmetic with date data

• Manipulating numbers with the ROUND, TRUNC and MOD functions

• Manipulating dates with the date function

Reporting Aggregated Data Using Group Functions

• Restricting Group Results

• Creating Groups of Data

• Using Group Functions

Using Subqueries to Solve Queries

• Using Single Row Subqueries

• Using Multiple Row Subqueries

• Update and delete rows using correlated subqueries

Managing Tables using DML statements

• Managing Database Transactions

• Controlling transactions

• Perform Insert, Update and Delete operations

• Performing multi table Inserts

• Performing Merge statements

Use DDL to manage tables and their relationships

• Describing and Working with Tables

• Describing and Working with Columns and Data Types

• Creating tables

• Dropping columns and setting column UNUSED

• Truncating tables

• Creating and using Temporary Tables

• Creating and using external tables

• Managing Constraints

• Controlling User Access

• Differentiating system privileges from object privileges

• Granting privileges on tables

• Distinguishing between granting privileges and roles

Managing Data in Different Time Zones

• Working with CURRENT_DATE, CURRENT_TIMESTAMP and LOCALTIMESTAMP

• Working with INTERVAL data types