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1 Which of these statements will fail because the table name is not legal (Choose all correct answers) A create table "SELECT" (col1 date); B create table "lower case" (col1 date); C create table number1 (col1 date); D create table 1number(col1 date); E create table update(col1 date); 2 Several object types share the same namespace and therefore cannot have the same name in the same schema Which of the following object types is not in the same namespace as the others (Choose the best answer) A Index B PL/SQL stored procedure C Synonym D Table E View 3 Which of the following is not supported by Oracle as an internal datatype (Choose the best answer) A CHAR B FLOAT C INTEGER D STRING 4 You need to record date-time values, with a precision of one second What would be a suitable datatype for a single column to store this information (Choose the best answer) A DATE B TIMESTAMP C Either DATE or TIMESTAMP D You must develop your own user-defined datatype, because the internal types store either the date or the time

Which line(s), inserted independently at line 7, will compile (Choose all that apply) A void getSKU() { ; } B private void getSKU() { ; } C protected void getSKU() { ; } D public void getSKU() { ; }

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5 Some types of constraint require an index (Choose all that apply) A CHECK B NOT NULL C PRIMARY KEY D UNIQUE 6 A transaction consists of two statements The first succeeds, but the second (which updates several rows) fails part way through because of a constraint violation What will happen (Choose the best answer) A The whole transaction will be rolled back B The second statement will be rolled back completely, and the first will be committed C The second statement will be rolled back completely, and the first will remain uncommitted D Only the one update that caused the violation will be rolled back, everything else will be committed E Only the one update that caused the violation will be rolled back, everything else will remain uncommitted

7 Which of the following statements is correct about indexes (Choose the best answer) A An index can be based on multiple columns of a table, but the columns must be of the same datatype B An index can be based on multiple columns of a table, but the columns must be adjacent and specified in the order that they are defined in the table C An index cannot have the same name as a table, unless the index and the table are in separate schemas D None of the above statements is correct 8 Which of the following options can be applied to B*Tree indexes, but not to bitmap indexes (Choose all correct answers) A Compression B Descending order C Function-based key expressions D Reverse key indexing E Uniqueness F Use of compound keys

16 Given:

9:

3 public class Stubborn implements Runnable { 4 static Thread t1; 5 static int x = 5; 6 public void run() { 7 if(ThreadcurrentThread()getId() == t1getId()) shove(); 8 else push(); 9 } 10 static synchronized void push() { shove(); } 11 static void shove() { 12 synchronized(Stubbornclass) { 13 Systemoutprint(x-- + " "); 14 try { Threadsleep(2000); } catch (Exception e) { ; } 15 if(x > 0) push(); 16 } } 17 public static void main(String[] args) { 18 t1 = new Thread(new Stubborn()); 19 t1start(); 20 new Thread(new Stubborn())start(); 21 } }

9 Data in temporary tables has restricted visibility If a user logs on as HR and inserts rows into a temporary table, to whom will the rows be visible A To no session other than the one that did the insert B To all sessions connected as HR C To all sessions, until the session that inserted them terminates D To all sessions, until the session that inserted them commits the transaction 10 Where does the data in a temporary table get written to disk (Choose the best answer) A It is never written to disk B To the user s temporary tablespace C To the temporary tablespace of the user in whose schema the table resides D To a disk local to the session s user process

Figure 9-6 in this chapter shows an entity-relationship diagram for a simple system designed to store and analyze sales The columns for the fact table SALES are SALE_ID CHANNEL_ID PRODUCT_ID SHOP_ID DAY_ID QUANTITY system-generated primary key foreign key to CHANNELS foreign key to PRODUCTS foreign key to SHOPS foreign key to DAYS the quantity of the product sold

Which are true (Choose all that apply) A Compilation fails B The output is 5 4 3 2 1 C The output is 5 4 3 2 1 0 D The program could deadlock E The output could be 5, followed by deadlock F If the sleep() invocation was removed, the chance of deadlock would decrease G As it stands, the program can t deadlock, but if shove() was changed to synchronized, then the program could deadlock 17 Given:

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