مالحل لهذه الاسئلة مساعدة ......

[تارا]

مالحل الصحيح لهذه الاسئلة؟؟؟؟؟؟؟

Q1)Which three statements about subqueries are true?)
A. A single row subquery can retrieve only one column and one row.
B. A single row subquery can retrieve only one row but many columns.
C. A multiple row subquery can retrieve multiple rows and multiple columns.
D. A multiple row subquery can be compared by using the “>” operator.
E. A single row subquery can use the IN operator.
F. A multiple row subquery can use the “=” operator.
Answer: B, C, D
Q2)In which four clauses can a subquery be used?
A. in the INTO clause of an INSERT statement
B. in the FROM clause of a SELECT statement
C. in the GROUP BY clause of a SELECT statement
D. in the WHERE clause of a SELECT statement
E. in the SET clause of an UPDATE statement
F. in the VALUES clause of an INSERT statement
Answer: B, D, E, F
Q3)What are two reasons to create synonyms? (Choose two.)
A. You have too many tables.
B. Your tables are too long.
C. Your tables have difficult names.
D. You want to work on your own tables.
E. You want to use another schema's tables.
F. You have too many columns in your tables.
Answer: A, C

[ramy.orcale]

السلام عليكم
في تقريبا كدة بعد كل سؤال كلمة اسمها answer c OR b OR etc تقريبا كدة خير اللهم اجعلو خير هية دي الحلول
والله ولي التوفيق