A condition that can increase the foaming tendency of lube oil is ()
A、excessively high oil temperatures
B、water or moisture contamination
C、fuel dilution
D、life its cylinder relief vales
A、excessively high oil temperatures
B、water or moisture contamination
C、fuel dilution
D、life its cylinder relief vales
A、A.must be from dead ahead B、B.speed must be zero C、C.must be from dead astern D、D.must be on the beam
A、Any row inserted or updated through view V1 must meet the condition that col4 > 1000. B、From now on, any row inserted or updated in table T1 must meet the condition that col4 > 1000, but existing rows in the table are not checked. C、At view creation, DB2 will check the data in table T1, and if in any row doesn't meet the condition col4 > 1000, the view creation will be rejected. D、Any row inserted or updated through view V1 must meet the condition that col4 > 1000 and no row in table T1 can be updated such that col4 <= 1000, but new rows in the table can be inserted with col4 <= 1000.
A、Even with resumable space allocation enabled for your database, you can disable resumable space allocation for a single session. B、A resumable statement is suspended only if an out of space error occurs. (Out of space condition Maximum extents reached condition,Space quota exceeded condition) C、When a resumable statement is suspended, the transaction that contains the statement is also suspended. D、A resumable statement can only be suspended and resumed once during the execution of the statement. E、You can query the V$SESSION_WAIT dynamic performance view to identify the statements that are suspended for a session.
A、You cannot use IN operator in a condition that involves an outerjoin. B、You use (+) on both sides of the WHERE condition to perform an outerjoin. C、You use (*) on both sides of the WHERE condition to perform an outerjoin. D、You use an outerjoin to see only the rows that do not meet the join condition. E、In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin. F、You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
A、You cannot use IN operator in a condition that involves an outerjoin. B、You use (+) on both sides of the WHERE condition to perform an outerjoin. C、You use (*) on both sides of the WHERE condition to perform an outerjoin. D、You use an outerjoin to see only the rows that do not meet the join condition. E、In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin. F、You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
A、You cannot use IN operator in a condition that involves an outerjoin. B、You use (+) on both sides of the WHERE condition to perform an outerjoin. C、You use (*) on both sides of the WHERE condition to perform an outerjoin. D、You use an outerjoin to see only the rows that do not meet the join condition. E、In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin. F、You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
A、A.reasonable order and condition B、B.apparent order and condition C、C.rational order and condition D、D.good order and condition
A、The distance of visibility B、1/2 the distance of visibility C、A distance appropriate to the existing circumstances and conditions D、The distance that it would require for the propeller to go from full ahead to full astern