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Database - Interview Questions and Answers for 'Cogent infotech' - 3 question(s) found - Order By Newest

 Q1. Difference between Inner and Outer Join ?Database
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Ans. Inner join is the intersection of two tables on a particular columns whereas Outer Join is the Union of two tables.

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   Like         Discuss         Correct / Improve     sql   joins   inner join   outer join     Asked in 3 Companies      basic        frequent


Related Questions

 What are Inner , Outer , Left and Right Joins in SQL ?
 What is a self Join and give an example of a self Join ?

or

What is self Join and What is it's purpose ?
 If Table A has 100 records and Table B has 50 records , how many records will the left join of Table A with Table B generate ?
 If Table A has 100 records and Table B has 50 records , how many records will the right join of Table A with Table B generate ?
 If Table A has 0 records and Table B has 50 records , how many records will the equi join of Table generate ?
 What is Left Outer Join ?
 Describe SQL Joins
 create an SQL query across multiple tables involving outer joins
 Explain Working of joins in sql.


 Q2. What is Left Outer Join ?Database2018-01-05 15:25:44

 This question was recently asked at 'NIIT Tech,Cogent Infotech Corp'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     database   database joins   left outer join  sql     Asked in 2 Companies


Related Questions

 What are Inner , Outer , Left and Right Joins in SQL ?
  What is JDBC? Describe the steps needed to execute a SQL query using JDBC.
 What is a self Join and give an example of a self Join ?

or

What is self Join and What is it's purpose ?
  Difference between Inner and Outer Join ?
  What is a Cursor ?
  What are temp tables ?
  Does SQL allow null values ? Can we use it within Where clause ?
  Write an SQL to find all records having all upper case alphanumeric characters in a field ?
  Write an SQL to find all records having all numeric characters in a field ?
  Do you know of any DB statement that can be used if we would like to insert multiple rows into a table ?


 Q3. create an SQL query across multiple tables involving outer joins Database2019-01-27 16:06:28

Ans. Select * from table1 t1Left outer join table2 t2 on t1.tid = t2.id

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   Like         Discuss         Correct / Improve     sql query  database  outer joins     Asked in 2 Companies


Related Questions

 What are Inner , Outer , Left and Right Joins in SQL ?
  Difference between Inner and Outer Join ?
 What is Left Outer Join ?



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