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Introduction to SQL

Introduction to SQL
Which SQL statement is used to update data in a database?

UPDATE
SAVE AS
MODIFY
SAVE

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Introduction to SQL
Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE);prints

0
9
10
5

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Introduction to SQL
The SQL statementSELECT SUBSTR('123456789', INSTR('abcabcabc', 'b'), 4) FROM DUAL;

2345
6789
1234
456789

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Introduction to SQL
Select the right statement to insert values to the student table.

INSERT INTO student VALUES (
INSERT VALUES INTO student (
INSERT student VALUES (
INSERT VALUES (

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Introduction to SQL
The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column.

True
False

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Introduction to SQL
SQL is:

an operating system.
a programming language.
a DBMS.
a data sublanguage.

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