Interview Questions   Tutorials   Discussions   Programs   

DB2 - What is an inner join, and an outer join ?

asked mar August 3, 2014 06:57 AM  

What is an inner join, and an outer join ?


1 Answers

answered By Mswami   0  
Inner Join: combine information from two or more tables by comparing all values that meet the search criteria in the designated column or columns of one table with all the values in corresponding columns of the other table or tables.  This kind of join which involve a match in both columns are called inner joins.

Outer join: Is one in which you want both matching and non matching rows to be returned. DB2 has no specific operator for outer joins, it can be simulated by combining a join and a correlated sub query with a UNION.

   add comment

Your answer

Join with account you already have



 Write A Tutorials
Online-Classroom Classes

  1 person following this question

  1 person following this tag

  Question tags

Asked 1 year and 1 month ago ago
Number of Views -178
Number of Answers -1
Last updated
2 years and 2 months ago ago

Ready to start your tutorial with us? That's great! Send us an email and we will get back to you as soon as possible!