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Question 118/171
The PRODUCTStable has the following structure.
Evaluate the following two SQL statements:
SQL>SELECT prod_id, NVL2 (prod_expiry_date, prod_expiry_date + 15, ' ') FROM products; SQL>SELECT prod_id, NVL (prod_expiry_date, prod_expiry_date + 15) FROM products; Which statement is true regarding the outcome?
Evaluate the following two SQL statements:
SQL>SELECT prod_id, NVL2 (prod_expiry_date, prod_expiry_date + 15, ' ') FROM products; SQL>SELECT prod_id, NVL (prod_expiry_date, prod_expiry_date + 15) FROM products; Which statement is true regarding the outcome?
Correct Answer: A
Explanation/Reference:
Explanation:
Using the NVL2 Function
The NVL2 function examines the first expression. If the first expression is not null, the NVL2 function returns the second expression. If the first expression is null, the third expression is returned.
Syntax
NVL2(expr1, expr2, expr3)
In the syntax:
Expr1 is the source value or expression that may contain a null
Expr2 is the value that is returned if expr1 is not null
Expr3 is the value that is returned if expr1 is null
Explanation:
Using the NVL2 Function
The NVL2 function examines the first expression. If the first expression is not null, the NVL2 function returns the second expression. If the first expression is null, the third expression is returned.
Syntax
NVL2(expr1, expr2, expr3)
In the syntax:
Expr1 is the source value or expression that may contain a null
Expr2 is the value that is returned if expr1 is not null
Expr3 is the value that is returned if expr1 is null
- Question List (171q)
- Question 1: Which three statements are true about Structured Query Langu...
- Question 2: Examine this description of the PRODUCTS table: (Exhibit) Ro...
- Question 3: Examine the structure of the EMPLOYEEStable: (Exhibit) There...
- Question 4: Examine the commands used to create DEPARTMENT_DETAILSand CO...
- Question 5: View the Exhibit and examine the structure of the ORDERS tab...
- Question 6: Examine the description of the PRODUCT_STATUStable: (Exhibit...
- Question 7: View the Exhibit and examine the data in the EMPLOYEES table...
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- Question 9: Sales data of a company is stored in two tables, SALES1and S...
- Question 10: Examine the description of the EMPLOYEES table: (Exhibit) Wh...
- Question 11: In which three situations does a transaction complete?...
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- Question 18: Which statement is true regarding the default behavior of th...
- Question 19: Which three statements are true about performing Data Manipu...
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- Question 21: Which two statements are true about * _ TABLES views?...
- Question 22: Which three tasks can be performed by DDL statements? (Choos...
- Question 23: Examine the create table statements for the stores and sales...
- Question 24: You issue the following command to drop the PRODUCTS table: ...
- Question 25: View the Exhibit and examine the data in the PRODUCT_INFORMA...
- Question 26: Evaluate the following query: SQL> SELECT TRUNC (ROUND(15...
- Question 27: View the exhibit and examine the descriptions of the DEPTand...
- Question 28: Examine this query: SELECT INTERVAL '100' MONTH DURATION FRO...
- Question 29: Examine the structure of the PROMOTIONS table: (Choose the b...
- Question 30: Examine the structure of the BOOKS_TRANSACTIONS table: (Exhi...
- Question 31: Which four statements are true about constraints on Oracle t...
- Question 32: The SALES table has columns PROD_IDand QUANTITY_SOLDof data ...
- Question 33: View the Exhibit and examine the structure of the ORDERS tab...
- Question 34: Which three statements are true about Structured Query Langu...
- Question 35: Which statements are true? (Choose all that apply.)...
- Question 36: View the Exhibit and examine the structure of the PRODUCTtab...
- Question 37: View and Exhibit and examine the structure and data in the I...
- Question 38: You execute this query: (Exhibit) What is the result?...
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- Question 58: Examine this query: SELECT employee_id, first_name, salary F...
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- Question 66: Examine the commands used to create DEPARTMENT_DETAILSand CO...
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