Question 1: Which SQL statement allows to delete the THONGTIN_SACH table from the database? A. DROP THONGTIN_SACH; B. DELETE TABLE THONGTIN_SACH; C. TRUNCATE TABLE THONGTIN_SACH; D. DROP TABLE THONGTIN_SACH; EASY is the correct answer =============== Link Hoc va de thi 2021
Question 37: Which of the following SQL statements has the correct syntax? A. SELECT Username, Password WHERE Username=”user1″ B. SELECT Username AND Password FROM Users C. SELECT Username, Password FROM Users OLD is the correct answer =============== Link Hoc va de thi 2021
Question 25: What is the INSERT command used for? A. To get data. B. To insert data. C. To modify data. REMOVE is the correct answer =============== Link Hoc va de thi 2021
Question 45: How to change? “Hansen” Fort “Nilsen” in column “LastName” in the table “Persons”? A. MODIFY Persons SET LastName=”Nilsen” WHERE LastName=”Hansen” B. UPDATE Persons SET LastName=”Nilsen” WHERE LastName=”Hansen” C. MODIFY Persons SET LastName=”Hansen” INTO LastName=”Nilsen D. UPDATE Persons SET LastName=”Hansen” INTO LastName=”Nilsen” REMOVE is the correct answer =============== Link Hoc va de thi 2021
Question 34: In SQL, how to select all columns from the table "Persons"? A. SELECT [all] FROM Persons B. SELECT * FROM Persons C. SELECT *.Persons D. SELECT Persons REMOVE is the correct answer =============== Link Hoc va de thi 2021
Question 26: The only way to link two data tables together is to use ANSI standard syntax: A. Right B. Wrong REMOVE is the correct answer =============== Link Hoc va de thi 2021
In 2020, the Starlink pilot program will officially roll out with US households getting the first chance to try the service. Judging by the registration numbers, many people were delighted with this opportunity. However, like any new technology that most people don’t fully understand, not everyone agrees. Starlink involves launching thousands of new satellites. Some […]
https://www.facebook.com/sharer.php?u=https://tracnghiem.net/cntt/150-cau-trac-nghiem-phan-cung-may-tinh-90.html?mode=part& part=99 https://www.facebook.com/sharer.php?u=https://tracnghiem.net/cntt/150-cau-trac-nghiem-phan-cung-may-tinh-90.html?mode=part&part= 99 =============== Link Hoc va de thi 2021
https://www.facebook.com/sharer.php?u=https://tracnghiem.net/cntt/150-cau-trac-nghiem-phan-cung-may-tinh-90.html?mode=part& part=93 https://www.facebook.com/sharer.php?u=https://tracnghiem.net/cntt/150-cau-trac-nghiem-phan-cung-may-tinh-90.html?mode=part&part= ninety three =============== Link Hoc va de thi 2021
https://www.facebook.com/sharer.php?u=https://tracnghiem.net/cntt/150-cau-trac-nghiem-phan-cung-may-tinh-90.html?mode=part& part=91 https://www.facebook.com/sharer.php?u=https://tracnghiem.net/cntt/150-cau-trac-nghiem-phan-cung-may-tinh-90.html?mode=part&part= 91 =============== Link Hoc va de thi 2021