Prep and try our A2090-730 valid and latest training questions & answers

The following triggers were defined for a table named SALES in the order shown:
CREATE TRIGGER trigger_a NO CASCADE BEFORE UPDATE ON sales REFERENCING NEW AS new FOR EACH ROW SET new.commission = sale_amt * .05 WHERE invoice = n.invoice;
CREATE TRIGGER trigger_b AFTER INSERT ON sales REFERENCING NEW AS new FOR EACH ROW UPDATE sales SET bill_date = CURRENT DATE + 30 DAYS WHERE invoice = n.invoice;
CREATE TRIGGER trigger_c NO CASCADE BEFORE DELETE ON sales FOR EACH ROW SIGNAL SQLSTATE '75005' SET MESSAGE_TEXT = 'Deletes not allowed!';
Which of the following statements is NOT true?

• A. Each time a row is inserted into the SALES table, trigger TRIGGER_A is fired first, followed by trigger TRIGGER_B
• B. Whenever a row in the SALES table is updated, all three triggers are fired but nothing happens because none of the triggers have been coded to trap update operations
• C. Once a row has been added to the SALES table, it cannot be removed
• D. Whenever a row is inserted into the SALES table, the value in the BILL_DATE column is automatically set to 30 days from today

Which of the following DB2 objects is NOT considered executable using SQL?

• A. Function
• B. Trigger
• C. Procedure
• D. Routine

A DBA has been asked to create a table which will contain a substantial amount of detailed sales information for each calendar month and maintain it to contain only the last 12 months. Which of the following methods will facilitate the online removal of the oldest month's data?

• A. Create an MQT that selects the oldest month of data with the REFRESH IMMEDIATE option.
• B. Create a range partitioned table, partitioned by month, and use the ALTER TABLE statement to detach the oldest month and attach storage for new data.
• C. Create a single table, extract the data to be retained using UNLOAD with a SELECT statement, drop and re-create the table then load only the data to be retained.
• D. Create 12 separate tables, create a view based on all 12, drop the table with the oldest month's data then drop and re-create the view.

When does a view get populated?

• A. When it is created
• B. When it is referenced in an INSERT statement
• C. The first time any executable SQL statement references it
• D. Any time an executable SQL statement references it

Given the following tables:
TABLEA
EMPIDNAME
1 USER1 2 USER2
TABLEB
EMPID WEEKNO PAYAMT
1 1 1000.00
1 2 1000.00
2 1 2000.00
and the fact that TABLEB was defined as follows:
CREATE TABLE tableb (empid SMALLINT,
weekno SMALLINT,
payamt DECIMAL(6,2),
CONSTRAINT const1 FOREIGN KEY (empid)
REFERENCES tablea(empid)
ON DELETE NO ACTION)
If the following command is issued:
DELETE FROM tablea WHERE empid=2
How many rows will be deleted from TABLEA and TABLEB?

• A. TABLEA - 0, TABLEB - 0
• B. TABLEA - 1, TABLEB - 1
• C. TABLEA - 1, TABLEB - 0
• D. TABLEA - 0, TABLEB - 1