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 ?
"Party workers and leaders shouldn't pay heed to rumours about JDS joining hands with BJP.
By joining hands, RapidCompute and ExD aim to bring efficiency and seamlessness to business operations as well as making it a more affordable option for their customers.
A distinct photo opportunity includes the large crowd joining hands along the proposed pipeline route, revealing the communitys serious concerns with how losing land protection puts local communities at risk.
Ministry of National Health Services is also joining hands with NAB to print NAB message on all cigarette packs.
" It will be Nitish who may profit from this alliance."The HAM leader said the Yadav voters in the state were not happy with Lalu joining hands with Nitish.
The way the prime minister is joining hands with a highly tainted leader -- Asif Ali Zardari's of the Pakistan People's Party -- the real but ugly face of politics in the country is gradually emerging.
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.