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Introduction to SQL

Introduction to SQL
SUM, AVG, MIN, and MAX can only be used with numeric columns.

False
True

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

UPDATE
SAVE
SAVE AS
MODIFY

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Introduction to SQL
In SQL, which of the following is not a data definition language commands?

UPDATE
RENAME
REVOKE
GRANT

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Introduction to SQL
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?

None
Both of above
Data Manipulation Language(DML)
Data Definition Language(DDL)

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Introduction to SQL
SQL is:

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

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

456789
1234
2345
6789

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