( please help me with this question quickly Database Systems: csci 335 waitting )

Answer by True OR False * True False An aggregate function is a function where the values of multiple rows are grouped together as input on certain criteria to form a single value of more significant meaning such as average , total and product O O In 2NF, we eliminate all Hidden Dependencies. In order for a table to be in 1 NF, there must not be multi- valued attributes. O In order for a table to be in 1 NF, there must not be multi- valued attributes. All the attributes found in the "GROUP BY" clause should be also found in the SELECT clause. The Deletion anomaly is when we delete one tuple, other tuples will be deleted as well. O O The count() function returns the number of columns in a relation O O Not being able to insert data because other data is required is an example of an update anomaly. O If a relation is in 2NF, then it is also in 1 NF. O A table can be in 3NF, even if it is not in 1 NF. O The Insert anomaly means that when we insert a new data, a lot of tuples need to be updated as well. O