what is a join? what are the types of joins?

Answer Posted / m m naidu

JOIN: A join is a query using which we can query data from
more than one table

TYPES OF JOINS:

1.EQUI JOIN
2.SELF JOIN
3.OUTER JOIN
a.left outer join
b.right outer join
c.full outer join
4.cartesian join

Is This Answer Correct ?    4 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how do you deploy a report in cognos 8 to run in maximo6? what r the steps in maximo??

1973


What is a Datastore in Cognos?

795


what are the components in the cognos connection page consists (eg: my folder, public folder,directions, schedule management tool etc.....)

1696


hi i need to rename a file in cognos8? can anyone help me out how 2 do it? pls suggest some solution such as using a batch file or using a procedure node or anything to rename the file

1937


Can you define a catalog and types of catalogs in cognos?

572






What is main advantage datawarehousing over oracle?

558


A product manager is analysing the sales made for each product, he has requested a report containing data for specific products. To do this we will create a report that includes a prompt page that filters on specific products within specific product subcategory and category.

1622


What is defined as data mining?

599


What are slice and dice?

526


Explain is there any comparison available for cognos reportnet vs crystal reports?

540


how many numbers of cubes can we create on a single model? How can we navigate between those cubes?

588


How to publish a package by running Java Script?

1595


What are the themes in a data warehouse?

582


I have ten columns that needs to be totalled... but some columns are empty...how do i get sum all the columns even if sum are empty? Can i get a total of the rows instead of columns? if yes, what is the function to be used?

1525


-----------Diff b/w OLAP and RDBMS?

1616