What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?

Database Redesign
What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?

ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0);

ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0);

None of these

ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0);

ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0);

ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0);

None of these

ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0);

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Database Redesign
What SQL command can be used to delete columns from a table?

ALTER TABLE TableName DROP ColumnName

MODIFY TABLE TableName DROP ColumnName

MODIFY TABLE TableName DROP COLUMN ColumnName

ALTER TABLE TableName DROP COLUMN ColumnName

ALTER TABLE TableName DROP ColumnName

MODIFY TABLE TableName DROP ColumnName

MODIFY TABLE TableName DROP COLUMN ColumnName

ALTER TABLE TableName DROP COLUMN ColumnName

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Database Redesign
Which SQL-92 standard SQL command can be used to change a table name?

None of these

ALTER TABLE

RENAME TABLE

CHANGE TABLE

None of these

ALTER TABLE

RENAME TABLE

CHANGE TABLE

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Database Redesign
A regular subquery can be processed:

by nesting.

from the bottom up.

None of these

from the top down.

by nesting.

from the bottom up.

None of these

from the top down.

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Database Redesign
The NOT EXISTS keyword will be true if any row in the subquery meets the condition.

True

False

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Database Redesign
Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.

None of these

optimistic

skeptical

ambivalent

None of these

optimistic

skeptical

ambivalent

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Database Redesign

Database Redesign What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?

Database Redesign What SQL command can be used to delete columns from a table?

Database Redesign Which SQL-92 standard SQL command can be used to change a table name?

Database Redesign A regular subquery can be processed:

Database Redesign The NOT EXISTS keyword will be true if any row in the subquery meets the condition.

Database Redesign Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.

Database Redesign
What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?

Database Redesign
What SQL command can be used to delete columns from a table?

Database Redesign
Which SQL-92 standard SQL command can be used to change a table name?

Database Redesign
A regular subquery can be processed:

Database Redesign
The NOT EXISTS keyword will be true if any row in the subquery meets the condition.

Database Redesign
Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.