DOMAIN CALCULUS
\dəmˈe͡ɪn kˈalkjʊləs], \dəmˈeɪn kˈalkjʊləs], \d_ə_m_ˈeɪ_n k_ˈa_l_k_j_ʊ_l_ə_s]\
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A form of relational calculus in which scalarvariables take values drawn from a given domain.Examples of the domain calculus are ILL, FQL, DEDUCE andthe well known Query By Example (QBE). INGRES is arelational DBMS whose DML is based on the relationalcalculus.
By Denis Howe
Word of the day
Platidiam
- An inorganic water-soluble platinum complex. After undergoing hydrolysis, it reacts DNA produce both intra interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity cisplatin correlates with cellular arrest in G2 phase cell cycle.