
Luyện tập câu lệnh SQL
Authored by Mai Ngô
Specialty
11th Grade

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6 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Câu 1: Ngôn ngữ SQL bao gồm những thành phần nào sau đây?
DDL, DML, DCL
DDL, DML, HTML
DDL, CSS, DCL
DML, DCL, XML
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Câu 2: Câu truy vấn nào dưới đây được sử dụng để tạo một bảng mới trong SQL?
ALTER TABLE
INSERT INTO
CREATE TABLE
DELETE TABLE
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Câu 3: Câu lệnh SQL nào được sử dụng để thay đổi định nghĩa bảng
A. CREATE TABLE
B. INSERT INTO
C. SELECT FROM
ALTER TABLE
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Câu 4: Câu lệnh SQL nào được sử dụng để khai báo khóa chính
CREATE TABLE
INSERT INTO
PRIMARY KEY
ALTER TABLE
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Câu 5: Dữ liệu kiểu ngày tháng được khai báo trong câu lệnh SQL là:
REAL
DATE
INT
TIME
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Dữ liệu kiểu logic được khai báo trong câu lệnh SQL là:
REAL
DATE
BOOLEAN
TIME
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