Which of the following utilities can a technician use to stop unwanted programs from loading at startup?

Describe the relationship between mathematical relations and relations in the relational data model?

D1 ? D2 ? . . . ? Dn ? {(d1, d2, . . . , dn) | d1 ??D1, d2 ??D2, . . . , dn ??Dn}

MC Which of the following queries selects the entire contents of the tableName database table?

a) SELECT ALL FROM tableName. b) SELECT * FROM tableName. c) FROM tableName SELECT *. d) None of the above.