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NEW QUESTION: 1
Member provides better performance than Attribute.
NEW QUESTION: 2
Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables:
Which DELETE statement is valid?
A. DELETE FROM employees WHERE employee_id IN(SELECT employee_id FROM new_employees WHERE name = 'Carrey');
B. DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE last_name = 'Carrey');
C. DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);
D. DELETE * FROM employees WHERE employee_id = (SELECT employee_id FROM new_employees);
The correct syntax for DELETE statement
DELETE [ FROM ] table
[ WHERE condition ];
Incorrect Answers :
A. '=' is use in the statement and sub query will return more than one row. Error Ora-01427: single-row sub query returns more than one row.
B. Incorrect DELETE statement
D. Incorrect DELETE statement Refer : Introduction to Oracle9i : SQL, Oracle University Student Guide, Manipulating Data, p. 8-19
NEW QUESTION: 3
You need to correct the model fit issue.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Step 1: Augment the data
Scenario: Columns in each dataset contain missing and null values. The datasets also contain many outliers.
Step 2: Add the Bayesian Linear Regression module.
Scenario: You produce a regression model to predict property prices by using the Linear Regression and Bayesian Linear Regression modules.
Step 3: Configure the regularization weight.
Regularization typically is used to avoid overfitting. For example, in L2 regularization weight, type the value to use as the weight for L2 regularization. We recommend that you use a non-zero value to avoid overfitting.
Model fit: The model shows signs of overfitting. You need to produce a more refined regression model that reduces the overfitting.
NEW QUESTION: 4
A. Office 365 Small Business
B. Office 365 Enterprise E1
C. Office 365 Small Business Premium
D. Office 365 Enterprise E3
E. Office 365 Midsize Business