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 ?
15 ( ANI ): T-Series has joined hands with Nikkhil Advani's Emmay Entertainment to jointly produce a film starring Manoj Bajpayee and John Abraham.
Africa's wealthiest man and chairman of Dangote Group, Alhaji Aliko Dangote has joined hands with the Government of Abia State to combat the scourge of unemployment and improve human capital development in God's own state.
Parties that joined hands to form the new alliance include the JUI-F, the Jamaat-e-Islami (JI), the Jamiat Ulema-e-Pakistan (JUP), the Jamiat Ahle Hadith (JAH) and the Islami Tehreek, also called Shia Ulema Council.
As importance of education cannot be emphasized enough, therefore, RIS has joined hands with British Council in establishing a platform to promote education.
Actor Akshay Kumar has joined hands with Yuva Sena Chief Aditya Thackeray, collaborating with FLO to launch a martial arts' event to give self defence training to women in suburban Mumbai.
SNGPL, IESCO, LESCO, GEPCO, FESCO and K-Electric have joined hands with NAB to print 'Say No to Corruption' from their platform.
Jazz has joined hands with Samsung to bring the much awaited Galaxy S8 and S8+ to Pakistan.
Manjhi, who has floated a new political outfit called the Hindustani Awam Morcha and joined hands with the Bharatiya Janata Party recently for the upcoming Assembly elections, said it was because of his formidable vote bank that all the parties had vied with each other to form an electoral alliance with him.
Dubai: UAE Exchange said on Thursday it has joined hands with Bank of Baroda to offer FLASHremit, an instant bank transfer facility.
Toward this, we have joined hands with Bank of Baroda to offer Baroda Flash Remit, our instant bank account credit service.
security threat of Maoists, may have joined hands with home grown
As part of its continued efforts to support the community in Oman and in observing Ramadan, the Khimji Ramdas Group joined hands with Sur Municipal Committee to provide commodity foods for 250 families in the goverA[degrees] norate, a press release said.