Answer the following statements true (T) or false (F)
1. A RDBMS is a data organizer.
2. A RDBMS is a relational database since it has a relational field relating two or more tables.
3. A query uses conditional expressions to select data.
4. Queries build a new table by selecting all or part of the records and/or fields.
5. A DBMS decreases the overlap of data
1. TRUE
2. TRUE
3. TRUE
4. TRUE
5. TRUE
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Assume int[][] x = {{1, 2}, {3, 4, 5}, {5, 6, 5, 9}}, what are x[0].length, x[1].length, and x[2].length?
a. 2, 3, and 3 b. 2, 3, and 4 c. 3, 3, and 3 d. 3, 3, and 4 e. 2, 2, and 2
Which of the following does NOT appear in a comment?
A) The text of the comment B) The commenter's name C) The date the comment was inserted D) The file name
Inserting data at the beginning of a linked structure uses constant time and memory.
Answer the following statement true (T) or false (F)
A join that compares the tables in the FROM clause and lists only those rows that satisfy the condition in the WHERE clause is called a(n) ____________________ join.
Fill in the blank(s) with the appropriate word(s).