What Is DataBase Normalization By Sagar Jaybhay

Normalization

In this article we will understand What Is DataBase Normalization ? Different Types of Normalization forms By Sagar Jaybhay. DataBase Normalization Database normalization is a process of organizing data and minimizing data redundancy which in turn ensures data consistency. The problem of data redundancies: Data is duplicated Disk space required more which is wastage Data inconsistency DML queries become slow(Insert, update, delete) Database normalization is a step by step process. There is 6 normal forms that start from 1st normal form to the 6th normal form. But most of the…

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CTE (common table expression) In Depth

CTE (common table expression) and Updatable CTE you will understand this in this article by sagar jaybhay in depth. CTE (common table expression) CTE Introduced in the SQL server 2005. CTE is like a temporary result set which is defined within the execution of the current context or execution scope of single select, insert, update delete and create view statement. It is similar to a derived table and it is not stored as an object like other objects in the SQL server. Remember CTE table is created with the keyword.…

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Insted Of Trigger Table Variable Derived Table

Sql Server By Sagar Jaybhay

Insted Of Trigger Table Variable Derived Table about this you will able to understand in this article By Sagar Jaybhay In SQL Server. Before read this article read below article First to better understanding. Part 1: – https://sagarjaybhay.com/what-is-triggers-in-sql-sagar-jaybhay-part-1/ Part 2:-https://sagarjaybhay.com/update-trigger-instead-of-trigger-sagar-jaybhay/ Insted Of Trigger Instead Of Update Trigger Instead of an update trigger is similar to instead of insert trigger. It is fire when we are going to update the records in view and in below code, you will see I am using Update function which we get the value true…

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How to create Update Trigger Instead of Trigger Part 2

Sql Server By Sagar Jaybhay

In Previous article we understand what is trigger and how to create trigger. Previous article link. In this article we understand What is Update Trigger?. How to Create it in SQL Server By Sagar Jaybhay. We will understand How to create Insted Of Trigger and what is use of that in SQL Server. Update Trigger When we create an update trigger we get both magic tables that are inserted and deleted table in this. See above image we get inserted table and deleted table and if we select both these…

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What Is Triggers In SQL By Sagar Jaybhay Part 1

Sql Server By Sagar Jaybhay

In this series of article you will understand What is Triggers in SQL Server and How many Different Types of Triggers Present in SQL Server by Sagar Jaybhay. Triggers in SQL Server In SQL server there are different types of triggers are present DML triggers DDL triggers Logon triggers DML Triggers This type of trigger is fired automatically when DML query is executed on an underlying table means Insert, Update or Delete query fired then DML triggers are triggered. DML stands for data manipulation trigger and it is fire when…

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What Is Indexed View In SQL By Sagar Jaybhay

Sql Server By Sagar Jaybhay

In this article we will understand What Is Indexed View In SQL Server By Sagar Jaybhay. Indexed View A normal view or non-indexed view is a saved SQL query or a virtual table. When you try to get data from the table the data is coming from an underlying table. So it means the view is a virtual table and doesn’t store any data. But when you create an index on view it gets materialized which means you can store data in view so in the SQL server we called…

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Updatable View in SQL By Sagar Jaybhay

Sql Server By Sagar Jaybhay

In this article we will understand how to Update view or What it means In SQL Server By Sagar Jaybhay. Before Proceeding To this article Please Read Part 1 – https://sagarjaybhay.com/view-in-sql-by-sagar-jaybhay-2020/ Updatable View in SQL Server By using view it is possible to update the base table. Query for this See the above image you will see the result the data is updated but it not present in view. It is updated in the underlying table so If you want to find this whether it is updated or not fire…

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View in SQL By Sagar Jaybhay 2020

Sql Server By Sagar Jaybhay

In this article Sagar Jaybhay explain what is View. What is the use of View. what is the advantages of views in SQL server. View The view is saved SQL query or we can call it a virtual table. We have these 2 tables and by joining these 2 tables we want to output. By joining these 2 tables we get the above result. Now we want to create a view, like other create statement like create a table, create procedure we have to create view statement Below is a…

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All About Index In SQL Server 2020

Sql Server By Sagar Jaybhay

In this article you will understand what is Index In SQL Server. How To Create Index and Different Types of Indexes In SQL By Sagar Jaybhay. Also You will leran Unique and Non Unique Index what is the difference between them. Index In SQL Server Index is used to find data from the table quickly. An index is created on views and tables. It is similar to the book index. If you apply index it will improve the query performance drastically. If there is no index then the query engine…

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SQL Temp Table: Temporary Table In Detail 2020

Sql Server By Sagar Jaybhay

In this article, you will able to understand Temporary table in detail in SQL, with how many different types of Temporary table present in SQL server. What is the difference between these Temporary tables. Temporary Tables In Detail Temporary tables are similar to permanent tables. When you create a permanent table they will create the database you specify and remain in that database permanently until you delete it. Temporary tables get created in tempdb automatically and deleted automatically when no longer used them. There are 2 different types of temporary…

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