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 ?
Each of the bands maintain an extensive performance schedule and are joining forces for an evening of brass band music.
Fico reacted accused Kiska of joining forces with the opposition and said he regretted Kiska's words from the day before that the motive of the murder is irrelevant.Fico suggested he suspects Kiska of being involved in attempts to destabilise the state, and mentioned the name of billionnaire George Soros, who is easily the most frequent target of conspirators on fake news websites.
We re excited to be joining forces with their innovative team.
The concert, at Durham Cathedral, was the culmination of the cathedral's annual outreach programme, involving Sunderland primary schools joining forces with the Cathedral Choristers.
In 2011, the first lady helped launch a nationwide effort called "Joining Forces'' to rally Americans to support service members, veterans and their families.
"Joining forces with JCP means that our offering to the local community has now been further enhanced, and the people of Carmarthen will benefit."
"It's Rassoul's personal decision and right to back whoever he wants to..." Rassoul had neither met the president nor consulted him on joining forces with Abdullah, Faizi insisted, saying Karzai learnt about the development from media outlets.
"We are excited about joining forces with Spins on the retail-tracking front to significantly expand IRI's coverage within the natural/organic products industry and the overall health and wellness sector," IRI president and chief executive officer Andrew Appel said in a statement.
I was very excited to inform her that AMSN was participating in the Joining Forces initiative.
The theme of this issue, "Joining Forces on Top Nursing Issues "is not new to the Arizona Nurses Association (AzNA).
The Nevada Nurses Association is proud to join the American Nurses Association in JOINING FORCES for Veterans, Military Service Members, and their families.
Joining Forces is a White House Initiative led by First Lady Michelle Obama and Second Lady Dr.