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Mysql

Time:11-06

2. Short-answer questions

A relational schema R (A, B, C, D), and its function depend on the set:

F={A, C, C, A, B, AC, D - AC}

(1). Computing (AD) +,

(2) o F the minimum equivalent Fm rely on set,

(3). O R keyword,

(4) will satisfy its BCNF R decomposition and nondestructive connectivity,

(5). R decomposition into meet 3 nf with nondestructive connectivity with maintaining dependencies,