24722990
Descrição
Quiz por Craig Willey, atualizado more than 1 year ago
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Criado por Craig Willey
aproximadamente 4 anos atrás
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Questão 1
Questão
Which of the following is true of the SQL statement?
Responda
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The statement will result in an implicit commit.
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The statement will remove all data from any INDEX objects associated with that table.
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The statement will not fire any DML triggers on the table.
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The statement will fail.
Questão 2
Questão
The CASCADE keyword, when used with TRUNCATE:
Responda
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Is required if the table has any dependent child tables
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Will ensure that future attempts to insert rows to the table will be rejected if they satisfy the TRUNCATE table’s WHERE clause
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Can be used with the optional DEPENDENCY keyword
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None of these
Questão 3
Questão
TRUNCATE TABLE:
Responda
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Cannot be used within a valid SQL statement
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Is a valid set of keywords to be used within a DDL statement
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Does not require the DROP_ANY_TABLE privilege
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Is a valid statement that will truncate a table called TABLE
Questão 4
Questão
The table will create successfully. What will result from the INSERT statement?
Responda
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The INSERT will fail because there is no list of columns after STUDENT_LIST.
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The INSERT will fail because the literal value for PHONE is numeric and PHONE is a character data type.
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The INSERT will execute—the table will contain one row of data.
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None of these.
Questão 5
Questão
The table will create successfully. What will be the result of the two INSERT statements?
Responda
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Neither will execute.
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The first will execute, but the second will fail.
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The first will fail, but the second will execute.
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Both will execute successfully.
Questão 6
Questão
What will be the result of the INSERT statement?
Responda
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It will fail because there is no column list in the INSERT statement.
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It will fail because there is no PRIMARY KEY in the table.
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It will execute and create a new row in the table.
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It will fail because the last name and first name values are reversed.
Questão 7
Questão
Which of the following reserved words is not required in order to form a syntactically correct UPDATE statement?
Responda
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UPDATE
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SET
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WHERE
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None of these
Questão 8
Questão
Assume a table LAMPS that has no constraints. Which of the following is true about the UPDATE statement and the LAMPS table? (Choose all that apply.)This
Responda
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UPDATE can be used to add rows to LAMPS by setting values to all the columns.
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UPDATE can be used to remove a row from LAMPS by setting all of the row’s columns to a value of NULL.
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For existing rows in LAMPS, UPDATE can add values to any column with a NULL value.
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For existing rows in LAMPS, UPDATE can remove values from any column by changing its value to NULL.
Questão 9
Questão
What can be said of the statements listed here?
Responda
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One row will be updated.
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Two rows will be updated.
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At least one of the statements will not execute.
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None of these.
Questão 10
Questão
What is the end result of the SQL statements listed here?
Responda
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The BOUNCERS table will contain one row.
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The BOUNCERS table will contain two rows.
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The UPDATE will fail because there is no WHERE clause.
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None of these.
Questão 11
Questão
Which of the following reserved words is/are optional in a complete DELETE statement? (Choose all that apply)
Responda
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FROM
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WHERE
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DELETE
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REMOVE
Questão 12
Questão
Which of the following SQL statements will remove the word VALID from row 1, resulting in one row with a status of NULL and two rows with a status of PENDING?
Responda
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DELETE FROM PARTS WHERE STATUS = 'VALID' ;
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DELETE PARTS WHERE PNO = 1 ;
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DELETE FROM PARTS SET STATUS = NULL WHERE PNO = 1 ;
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None of these
Questão 13
Questão
Which of the following best describes the results of attempting to execute the DELETE statement?
Image:
9 (binary/octet-stream)
Responda
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The DELETE statement will fail because it is missing a column list between the word DELETE and the name of the table AB_INVOICES.
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The DELETE statement will execute, but no rows in the table will be removed.
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The DELETE statement will produce a syntax error because it is referencing a row that does not exist in the database.
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None of these.
Questão 14
Questão
In this series of SQL statements, which line represents the first commit event?
Responda
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Line 1
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Line 2
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Line 4
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Line 5
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Line 6
Questão 15
Questão
What will be the result of the execution of the SQL statements shown here?This
Responda
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The ADDRESSES table will have one row with a value of 1 for ZONE.
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The ADDRESSES table will have one row with a value of 2 for ZONE.
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The ADDRESSES table will have no rows.
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None of these.
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