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How to set a unique key in SQL server?

Asked by Anubhav 03/10/2018 Last Modified 04/10/2018

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Learn SQL Programming +2 MS SQL MS SQL Administration

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How do I become master in SQL server? I am looking for real time case studies to write queries, stored procedures etc.

Hi Komal, Try to command basic SQL statement first. Understand the very basic concepts of DDL , DML and TCL commands.. start with writing SELECT statement with WHERE clause , using aggregate functions...

Komal

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I need your help to choose my career as I have three years of gap between my education. I know SQL. Can anyone tell me should I choose MS SQL server or oracle because I am interested in the database? Which one will be better to learn to get into the IT industry? Please help me! Thank you!

As you are strong and interested in SQL, why not to choose ETL Testing? It has a good career ahead in data projects. To survive in the market, you need both Oracle & SQL Server. Actually, both are almost same but are different products.

Santhosh

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Which is a good reference book to learn SQL and database from basics?

You can learn by MS SQL Bigners book.

Harshini

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I want to teach, how can I?

You can teach students Online as well as offline. If you want to teach online you need to have a communicating media.

Yasheela

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Whenever you want data (columns) to be fetched from more than a single table then think of JOINS in SQL.It could be 2 or more tables.*Mostly you join using Primary key and Foreign Key1) if you want only...

Dinesh Chandar mk

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SQL Union Vs Union ALL

SQL UNION vs UNION ALL Operator Usage UNION: UNION combines the result set of two or more queries into a single result set. UNION removes duplicate records (where all columns in the results are the same). UNION...

Umasankar Natarajan

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How To Minimize The Page Splits In Sqlserver To Improve The Performane Of Database?

How to minimize the page splits in sqlserver to improve the performane of database? Page Splits: A page is 8Kbytes of data which can be index related, data related, large object binary (lob’s)...

Amitava Majumder

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SQL Tips (4 to 6)

SQL tips 4:Avoid INDEX, unless you need to retrieve information quickly. Index will slower insert and update data query.The another way is using sub querySelect MAX(salary)FROM employeeWHERE salary IN(Select...

Umasankar Natarajan

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Cursors In SQL Server

First thing first Usage of Cursors is not encouraged in SQL Server as they are slow. You may go with While loop if you need to iterate through a recordset. Cursor is a database object to retrieve data...

Redbush Technologies Pvt.Ltd.

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