They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.
They are evaluated by the first WHEN clause. If the condition is true, then the row would be evaluated by the subsequent WHEN clauses.
They are evaluated by the first WHEN clause. If the condition is false, then the row would be evaluated by the subsequent WHEN clauses.
The INSERT statement would give an error because the ELSE clause is not present for support in case none of the WHEN clauses are true.
第1题:
A. The Junos OS verifies the match criteria of each policy in order and performs the associated action when a match occurs.
B. Policies are evaluated from right to left as displayed in the Junos OS configuration file.
C. Polices are evaluated based on the order in which they are applied to a routing protocol.
D. Policy processing stops once the last statement in the policy is evaluated.
第2题:
Which two statements are true regarding routing policy processing?()
第3题:
Which three are true?()
第4题:
In which four clauses can a subquery be used? ()
第5题:
Which two statements are true regarding subqueries? ()
第6题:
Which two statements about subqueries are true? ()
第7题:
Which statement is true regarding subqueries?()
第8题:
A subquery can retrieve zero or more rows
Only two subqueries can be placed atone level
A subquery can be used only in SQL query statements
A subquery can appear on either side of a comparison operator
There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement
第9题:
The LOB values are automatically compressed.
The LOB values are cached by default in the buffer cache.
The LOB values are automatically stored in encrypted mode.
All LOB data that is identical in two or more rows in a LOB column share the same data blocks.
第10题:
in the INTO clause of an INSERT statement
in the FROM clause of a SELECT statement
in the GROUP BY clause of a SELECT statement
in the WHERE clause of a SELECT statement
in the SET clause of an UPDATE statement
in the VALUES clause of an INSERT statement
第11题:
A MERGE statement is used to merge the data of one table with data from another.
A MERGE statement replaces the data of one table with that of another.
A MERGE statement can be used to insert new rows into a table.
A MERGE statement can be used to update existing rows in a table.
第12题:
They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.
They are evaluated by the first WHEN clause. If the condition is true, then the row would be evaluated by the subsequent WHEN clauses.
They are evaluated by the first WHEN clause. If the condition is false, then the row would be evaluated by the subsequent WHEN clauses.
The INSERT statement would give an error because the ELSE clause is not present for support in case none of the WHEN clauses are true.
第13题:
Which of the following statement(s)is/are TRUE regarding a twin pedestal crane set ________.
A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.When twinned,the crane rotation on the foundation assembly is unlimited
D.All of the above
第14题:
Which two statements about subqueries are true? ()
第15题:
Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? ()
第16题:
Evaluate the following command: SQL> CREATE TABLE design_data (id NUMBER, doc CLOB) LOB(doc) STORE AS SECUREFILE(DEDUPLICATE); Which statement is true regarding the above command?()
第17题:
Which statement is true regarding the COALESCE function?()
第18题:
Which statement is true regarding Flashback Version Query? ()
第19题:
It returns versions of rows only within a transaction.
It can be used in subqueries contained only in a SELECT statement.
It will return an error if the undo retention time is less than the lower bound time or SCN specified.
It retrieves all versions including the deleted as well as subsequently reinserted versions of the rows.
第20题:
It can have a maximum of five expressions in a list
It returns the highest NOT NULL value in the list for all rows
It requires that all expressions in the list must be of the same data type
It requires that at least one of the expressions in the list must have a NOT NULL value
第21题:
The statement would not execute because table aliases are not allowed in the JOIN clause.
The statement would not execute because the table alias prefix is not used in the USING clause.
The statement would not execute because all the columns in the SELECT clause are not prefixed with table aliases.
The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list.
第22题:
A single row subquery can retrieve data from only one table.
A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FROM clause.
A SQL query statement can display data from table B that is referred to in its subquery, without including B in its own FROM clause.
A single row subquery can retrieve data from more than one table.
A single row subquery cannot be used in a condition where the LIKE operator is used for comparison.
A multiple-row subquery cannot be used in an INSERT statement to insert multiple rows at a time.
第23题:
A subquery should retrieve only one row.
A subquery can retrieve zero or more rows.
A subquery can be used only in SQL query statements.
Subqueries CANNOT be nested by more than two levels.
A subquery CANNOT be used in an SQL query statement that uses group functions.
When a subquery is used with an inequality comparison operator in the outer SQL statement, the column list in the SELECT clause of the subquery should contain only one column.
第24题:
The LOB matically compressed.
The LOB values are cached bvalues are autoy default in the buffer cache.
The LOB values are automatically stored in encrypted mode.
All LOB data that is identical in two or more rows in a LOB column share the same data blocks.