Basic SQL Getting Started Tutorials

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  • Database management system

    Why use a Database? The need to manipulate large collection of data for frequent used data queries and reports.
    http://www.dailyict.com/2016/04/dbms.html
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  • Primary key vs Candidate Key in Table SQL Database

    The main difference between a primary key and candidate keys are that all the columns in a table which are eligible to become the primary key e.g. the
    http://java67.blogspot.com/2012/10/difference-between-primary-key-vs-candidate-keys-sql-da...
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  • Difference between Unique and Primary key in SQL

    The main difference between the primary and unique key in the database is that primary key is not null but unique can be null. Both Primary and unique
    http://java67.blogspot.com/2012/10/difference-between-primary-vs-unique-key-table-sql.html
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  • The difference between primary and foreign key in table

    A table in the database is a collection of rows and the primary key is used to uniquely identify each row. Its usually id e.g. if you have an emp_id y
    http://javarevisited.blogspot.com/2012/12/foreign-key-vs-primary-key-table-sql-database-di...
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  • What is a database index

    This article will give you a general overview on what indexes are without digging into too much detail.
    http://www.vertabelo.com/blog/technical-articles/what-is-a-database-index
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  • Identity column example in MySQL, SQLServer and Oracle

    Identity columns represent id e.g. employeeId, one of the key thing is that you want them to be auto incremented. This article, shows how to create au
    http://javarevisited.blogspot.com/2012/12/create-auto-incremented-identity-column-oracle-s...
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