1 votes 1 votes What is coalescence rule in MVD? Databases databases mvd coalescence-rule + – CJ147 asked Nov 29, 2018 • retagged Feb 15, 2019 by Cristine CJ147 396 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes $if X \twoheadrightarrow Y$ and there exists W with the property that $1. W\cap Y=\varnothing $ $2. W\rightarrow Z$ $3. Z\subseteq Y$ then $ X\rightarrow Z$ aditi19 answered Jul 21, 2019 aditi19 comment Share Follow See all 0 reply Please log in or register to add a comment.