Based on the database definition in Figure 3 , use relational algebra to express the following queries Q 1 List the names of members who have bought Q 2 List the transaction IDs and member IDs of all online transactions in 2 0 0 4 ( i e , transaction method is cart )

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Based on the database definition in Figure 3 , use relational algebra to express the following queries:Q 1 . List the names of members who

Based on the database definition in Figure

3,

use relational algebra to express the following queries:Q

1 .

List the names of members who have bought

" "

2 .

List the transaction IDs and member IDs of all online transactions in

2004 (

.

.,

transaction method is "cart"

)

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