27878529
Descrição
Quiz por Kyle Peterson, atualizado more than 1 year ago
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Criado por Kyle Peterson
mais de 3 anos atrás
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Questão 1
Questão
Microsoft SQL Server uses:
Responda
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T-SQL
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PL/SQL
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DDL
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DML
Questão 2
Questão
The COUNT function is designed to tally the number of non-null "values" of an attribute and is often used in conjunction with the DISTINCT clause.
Responda
- True
- False
Questão 3
Questão
With the exception of the database creation process, most RDBMS vendors use SQL that deviates little from the ANSI standard SQL.
Responda
- True
- False
Questão 4
Questão
Which clause is specifically used with aggregate functions?
Responda
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WHERE
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DISTINCT
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HAVING
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ORDER BY
Questão 5
Questão
The underscore wildcard is used just like % but instead of matching multiple characters, the underscore matches just a single character.
Responda
- True
- False
Questão 6
Questão
Which SQL statement is used to return only different values?
Responda
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SELECT UNIQUE
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SELECT DIFFERENT
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SELECT DISTINCT
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All of the above
Questão 7
Questão
Which SQL keyword is used to sort the result-set?
Responda
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SORT
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SORT BY
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ORDER
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ORDER BY
Questão 8
Questão
Which one of the following is NOT part of DDL?
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SELECT INTO
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CREATE
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ALTER
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TRUNCATE
Questão 9
Questão
CAST is unique to T-SQL.
Responda
- True
- False
Questão 10
Questão
Which one of the following JOIN includes all rows from the second table and matching rows from the first table?
Responda
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Inner Join
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Left Outer Join
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Right Outer Join
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Full Outer Join
Questão 11
Questão
What is the most common type of join?
Responda
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Inner Join
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Left Outer Join
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Right Outer Join
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Full Outer Join
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Self Join
Questão 12
Questão
Which SQL statement is used to create a table in a database?
Responda
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CREATE TABLE
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CREATE DB
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CREATE DATABASE TABLE
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CREATE DATABASE TAB
Questão 13
Questão
Which SQL statements uses the keyword SET?
Responda
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SELECT
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UPDATE
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MODIFY
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DELETE
Questão 14
Questão
A table may be joined to itself.
Responda
- True
- False
Questão 15
Questão
The FULL OUTER JOIN syntax is not supported by Microsoft Access.
Responda
- True
- False
Questão 16
Questão
A set of SQL statements (one or more) typically grouped together to perform a specific routine is called ____________.
Responda
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Views
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Cursors
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Stored Procedures
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Indexes
Questão 17
Questão
According to the rules of precedence, which of the following computations should be completed first?
Responda
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performing additions and subtractions
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performing multiplications and divisions
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performing operations within parentheses
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performing power operations
Questão 18
Questão
The special operator used to check whether an attribute is within a range of values is ___________.
Responda
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BETWEEN
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LIKE
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IN
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NULL
Questão 19
Questão
To list the contents of a table, you must use the DISPLAY command.
Responda
- True
- False
Questão 20
Questão
The SQL data manipulation command HAVING:
Responda
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restricts the selection of rows based on a conditional expression.
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restricts the selection of grouped rows based on a condition.
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modifies an attribute's value in one or more table's rows.
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groups the selected rows based on one or more attributes.
Questão 21
Questão
You can call a stored procedure from within itself.
Responda
- True
- False
Questão 22
Questão
A temporary stored procedure with global scope has the following prefix:
Responda
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#
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##
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!
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EXECUTE_AS
Questão 23
Questão
Which one of the following is used to prevent SQL injection attacks?
Responda
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Stored Procedures
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Triggers
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User-Defined Functions
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Views
Questão 24
Questão
-- Using a variable with CONCAT
DECLARE @a VARCHAR(30) = 'My birthday is on '
DECLARE @b DATE = '1980/08/25'
SELECT CONCAT (@a, @b) AS RESULT;
The above query will yield an error.
Responda
- True
- False
Questão 25
Questão
Which type of JOIN reflects is the following statement:
All rows from the left side of the join, even if there is not a match, and all rows from the right side, even if there is not a match, show up in the results.
Responda
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INNER JOIN
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LEFT OUTER JOIN
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FULL OUTER JOIN
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RIGHT OUTER JOIN
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MERGE
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