Torthaí beachta
Exact matches
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An element of a data store that in some way describes, qualifies, or classifies that data store. A data item equates to an attribute of an entity. Each data item on a data store must have its equivalent on a corresponding entity.
Eilimint de stór sonraí a thuairiscíonn, a cháilíonn, nó a rangaíonn an stór sonraí sin ar shlí éigin. Bíonn comhfhreagracht ann idir mír sonraí agus tréith aonáin. Ní mór do gach mír sonraí ar stór sonraí, a coibhéis a bheith ar aonán comhfhreagrach.
Torthaí gaolmhara
Related matches
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Computers, Computer Science 1. The identifying field of a record. 2. The field whose value is used to place a collection of records into a sorted ordering. 3. (In SSADM) An attribute whose value uniquely identifies a specific occurrence of an entity. The values of all other attributes in that entity depend upon the key. In Relational Data Analysis the key is often referred to as a determinant (as its value determines all other attribute values).
Ríomhairí, Ríomheolaíocht 1. Réimse sainaitheanta taifid. 2. An réimse a n-úsáidtear a luach chun cnuasach taifead a chur isteach in ord sórtáilte. 3. (In SSADM) Tréith a sainaithníonn a luach go huathúil tarlú ar leith d'aonán. Braitheann luachanna na dtréithe eile go léir san aonán sin ar an eochair. San Anailís ar na Sonraí Coibhneasta, tagraítear go minic don eochair mar dheitéarmanant (de bhrí go ndearbhaíonn a luach luachanna uile na dtréithe eile).