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SQL Difference Between SQL Interview Questions SQL Tutorials

What is difference between subquery and correlated subquery with example?

Amit S February 25, 2017

Subquery : Subquery is query within query.The output of outer query is assigned to the column which is used in where condition of outer query.The…

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SQL Optimizer
SQL Performance Tuning SQL Tutorials

What is SQL Optimizer and Parser for Oracle? | Types of SQL Optimizer

Amit S February 24, 2017

SQL Optimizer for Oracle : In Previous articles I just explained about the Basics of Performance Tuning.In this article I will explain Parser and Optimizer…

View More What is SQL Optimizer and Parser for Oracle? | Types of SQL Optimizer
SQL Difference Between SQL Tutorials

What is difference between Rank and Dense_Rank with examples?

Amit S February 22, 2017

In my previous articles I have given the different SQL tutorials. In this article I would like to explain about Difference between Rank and Dense_Rank…

View More What is difference between Rank and Dense_Rank with examples?
Oracle 11 G Features
SQL Interview Questions SQL Tutorials

What are important new features in Oracle for developers and DBAs?

Amit S February 18, 2017

New Features in Oracle : Oracle has announced the new version Oracle and announced the new features in that version. Oracle has added around 500…

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SQL Tutorials

What are SQL Query execution steps with example?

Amit S February 14, 2017

What is SQL Query execution steps with examples? In This article I will explain about all the different SQL Statements which are DDL,DML an DCL.…

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Indexes in SQL
SQL Performance Tuning SQL Tutorials

What are types of indexes in SQL with examples ?

Amit S February 9, 2017

Types of Indexes in SQL : In most of SQL projects the data is in millions and billions. Because of huge volume of the data…

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SQL Difference Between SQL Tutorials

What are SQL Set Operators?| Intersect and Minus in SQL

Amit S February 8, 2017

Intersect and Minus in SQL : SQL Set Operators combines the result of 2 queries or components on to the single result. The queries containing…

View More What are SQL Set Operators?| Intersect and Minus in SQL
SQL Difference Between SQL Tutorials

What is Difference between Union and Union all? | Union vs Union all

Amit S February 7, 2017

SQL Set Operators combines the result of 2 queries or components on to the single result. The queries containing the different set operators like union,…

View More What is Difference between Union and Union all? | Union vs Union all
SQL Joins SQL Tutorials

What are Joins in SQL with industry examples?

Amit S February 5, 2017

Different Joins in SQL : Joins in SQL are nothing but combining the 2 or more tables and fetch the columns from the tables. Joins…

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Joins in SQL
SQL Joins SQL Tutorials

SQL Join Examples for equi join and non equi join

Amit S February 4, 2017 Equi joinInner JoinNon Equi JoinOracleOuter JoinPLSQLPostgresSelf JoinSQLSQL Joins

I have already explained about SQL joins in other articles. Here in this article my focus is on SQL Join examples for equi join and…

View More SQL Join Examples for equi join and non equi join

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