join

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join

[jȯin]
(computer science)
A portion of a robotic control program that directs an activity to resume after it has been interrupted.
(mathematics)
The join of two elements of a lattice is their least upper bound.

join

(database)
inner join (common) or outer join (less common).

join

(theory)

join

In relational database management, to match one table (file) against another based on some condition creating a third table with data from the matching tables. For example, a customer table can be joined with an order table creating a table for all customers who purchased a particular product.

The default type of join is known as an "inner" join. It produces a resulting record if there is a matching condition. For example, matching shipments with receipts would produce only those shipments that have been received. On the other hand, an "outer" join using that example would create a record for every shipment whether or not it was received. The data for received items would be attached to the shipments, and empty, or null, fields would be attached to shipments without receipts.


A Simple Join
This example matches the sales table against the product table based on product number to derive the product description.
References in periodicals archive ?
There is no question of joining hands with them," Mayawati said.
Du, a leading telecom services provider in the UAE, has expanded the Arabic library available on its Video on Demand service, a popular feature among du TV's customers, by joining hands with entertainment company Rotana.
Summary: Abu Dhabi - The Ministry of Environment and Water is joining hands with local and international partners to develop a national early warning system on food and fodder to ensure food safety, a senior official has disclosed.
On the Indo-US strategic dialogue, Krishna said there were many commonalities between the two countries and they were joining hands to enlarge the area of peace, understanding and strategic partnership.
Pupils from schools in Eaglescliffe and students from Darlington College were among those taking part in a day of action by joining hands to become part of the world's longest human chain.
We connect with one another, she added, by joining hands with our left palms turned up to receive our ancestors' teachings and we pass them on to the next seven generations by holding our right palms down.
It's not so much a matter of Mexico joining hands with the LAUSD, it's a matter of Mexico getting its hands on anything having to do with the education of children in America