APACHE SOLR QUIZ DESCRIPTION Total Questions −30 00 Max Time − 15:00 List the correct sequence of commands to process a set of records when using explicit cursors INITIALIZE, GET, CLOSE CURSOR, GET, FETCH, CLOSE OPEN, FETCH, CLOSE CURSOR, FETCH, CLOSE In the context of MS SQL SERVER, with the exception of ………… column(s), any column can participate in the GROUP BY clause. bit text ntext image What is the value of customer_id within the nested block in the example below? /* Start main block */ DECLARE customer_id NUMBER(9) := 678; credit_limit NUMBER(10,2) := 10000; BEGIN /* Start nested block */ DECLARE customer_id VARCHAR2(9) := ‘AP56’; current_balance NUMBER(10,2) := 467.87; BEGIN — what is the value of customer_id at this point? NULL; END; END; 678 10000 ‘AP56’ 467.87 Which functions can be used with any datatype? Please select all the correct answers. A.SUM B. MIN C. MAX D. AVG correct answers is B correct answers is A correct answers is D The correct answers are B and C. Select the invalid PL/SQL looping construct. A. WHILE LOOP … END LOOP; B. FOR rec IN some_cursor LOOP … END LOOP; C. LOOP … UNTIL ; END LOOP; D. LOOP … EXIT WHEN ; END LOOP; E. None of the above. All are valid. Answers are option A and C Answers are option A and B Answers are option A and D Answers are option C and D Select incorrect variable declarations foo_number varchar2(10); foo_text number(10); foo_char char(1) := ‘Y’; foo_text varchar2(10) := ‘hello world’; List the correct sequence of commands to process a set of records when using explicit cursors INITIALIZE, GET, CLOSE CURSOR, GET, FETCH, CLOSE OPEN, FETCH, CLOSE CURSOR, FETCH, CLOSE Where do you declare an explicit cursor in the PL/SQL language? In the PL/SQL working storage section In the PL/SQL declaration section In the PL/SQL body section In the PL/SQL exception section Select incorrect variable declarations foo_number varchar2(10); foo_text number(10); foo_char char(1) := ‘Y’; foo_text varchar2(10) := ‘hello world’; A developer would like to use referential datatype declaration on a variable. The variable name is EMPLOYEE_LASTNAME, and the corresponding table and column is EMPLOYEE, and LNAME, respectively. How would the developer define this variable using referential datatypes? Use employee.lname%type. Use employee.lname%rowtype. Look up datatype for EMPLOYEE column on LASTNAME table and use that. Declare it to be type LONG. What are the three parameter modes for procedures? IN, OUT, IN OUT R(ead), W(rite), A(ppend) CONSTANT, VARIABLE, DEFAULT COPY, NOCOPY, REF The command used to open a CURSOR FOR loop is open fetch parse None, cursor for loops handle cursor opening implicitly. Select invalid variable types CHAR VARCHAR1 VARCHAR2 INTEGER Which of the following is not a grouping function. COUNT SUM DISTINCT MIN What happens when rows are found using a FETCH statement It causes the cursor to close It causes the cursor to open It loads the current row values into variables It creates the variables to hold the current row values Select the best answer. Which listed attribute is an invalid attribute of an Explicit cursor. %NOTFOUND %FOUND %ROWCOUNT None of the above. All of these are valid. The || is is an example of what function SELECT last_name || ‘, ‘ || first_name || ‘ ‘ || middle_name FROM employees; Incantination Integration Continuation Concatenation The sequence of the columns in a GROUP BY clause has no effect in the ordering of the output. TRUE FALSE Which line in the following statement will produce an error? cursor action_cursor is select name, rate, action into action_record from action_table; Which three of the following are implicit cursor attributes? %found %too_many_rows %notfound %rowcount Which of the following is not an Oracle DML function? DECODE TRUNCATE TO_CHAR NVL For the purposes of …………, null values are considered equal to other nulls and are grouped together into a single result row. Having Group By Both of above None of above Which kind of parameters cannot have a DEFAULT value? OUT IN CONSTANT R(ead) Which of the following is not a feature of a cursor FOR loop? Record type declaration. Opening and parsing of SQL statements. Fetches records from cursor. Requires exit condition to be defined. Which one of the following statements about formal and actual parameters is true? Formal and actual parameters must have the same name. Formal and actual parameters must have different names. A formal parameter is declared within the called procedure, while an actual parameter is declared in thecalling environment. An actual parameter is declared within the called procedure. A nested subprogram can be called from the main procedure or from the calling environment. Trueor False? True False If left out, which of the following would cause an infinite loop to occur in a simple loop? LOOP END LOOP IF-THEN EXIT Which of the following is not a valid Oracle PL/SQL exception. NO_DATA_FOUND ORA-01403 TWO_MANY_ROWS ORA-01422 DUP_VAL_ON_INDEX ORA-00001 OTHERS Select invalid variable types CHAR VARCHAR1 VARCHAR2 INTEGER For which task is it best to use a character string enclosed by double quotes? Please select the best answer. Referring to a column in the database Using a reserved word to declare an identifier Using a hyphen to concatenate two columns Referring to a number variable by using a logical operator Previous Next Total Question16 Wrong Answer13 Right Answer13
