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QUESTION 1Examine the parameters for your database instance:NAMETYPE VALUE————————– ——————————- —————————undo_management string AUTOundo_retentioninteger 12 00undo_tablespace string UNDOTBS1You execute the following command:SQL> ALTER TABLESPACE undotbs1 RETENTION NOGUARANTEE;Which statement is true in this scenario? A.    Undo data is written to flashback logs…Continue Reading →

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QUESTION 1Evaluate the following CREATE TABLE commands:CREATE TABLE orders(ord_no NUMBER(2) CONSTRAINT ord_pk PRIMARY KEY,ord_date DATE,cust_id NUMBER(4));CREATE TABLE ord_items(ord_no NUMBER(2),item_no NUMBER(3),qty NUMBER(3) CHECK (qty BETWEEN 100 AND 200),expiry_date date CHECK (expiry_date > SYSDATE),CONSTRAINT it_pk PRIMARY KEY (ord_no,item_no),CONSTRAINT ord_fk FOREIGN KEY(ord_no) REFERENCES…Continue Reading →