parent a9100c76
 # problem 1 Start SQL*Plus, log onto the database, and set up the PL/SQL output buffer using the SET SERVEROUTPUT ON command (Note: if the SET SERVEROUTPUT ON command is not used, the output will not be displayed on the screen). ![problem1](./pics/problem1.png) ## problem 2 Write a PL/SQL program to display your name. ```plsql begin dbms_output.put_line('MICHAEL LUNDQUIST'); end; / ``` ![problem2](./pics/PROBLEM2.png) ## problem 3 Write a PL/SQL program that declares two variables (variable1 and variable2), sets their values to zero, and performs the following calculation: variable2=variable1+1 and displays the value of variable2. ```plsql declare variable1 NUMBER(2) := 0; variable2 NUMBER(2) := 0; begin variable2 := variable1 + 1; dbms_output.put_line('the value of var2 is now ' || variable2); end; / ``` ![problem3]("./pics/problem 3.png") ## Problem 4 Write a PL/SQL program to display the current date. ```plsql begin dbms_output.put_line('today is ' || sysdate); end; / ``` ![problem4](./pics/problem4.png) ## problem 5 Write a PL/SQL program to declare a variable V_NUMBER, assign a value to it (any number), and display its’ value if the number is positive. ```plsql declare V_NUMBER NUMBER(10) := 46290; begin IF V_NUMBER >= 0 THEN dbms_output.put_line('V_NUMBER IS ' || V_NUMBER); END IF; end; / ``` ![problem5](./pics/PROBLEM5.png) ## problem 6 Write a PL/SQL program to declare a variable V_NUMBER, assign a value to it (any number), and test if it is a positive number or a negative number. Display the result. ```plsql declare V_NUMBER NUMBER(10) := 46290; begin IF V_NUMBER > 0 OR V_NUMBER < 0 THEN dbms_output.put_line('V_NUMBER IS ' || V_NUMBER); END IF; end; / ``` ![problem6](./pics/PROBLEM6.png) ## problem 7 Write a PL/SQL program to test whether today is Friday or not. Display the result. ```plsql BEGIN IF to_char (SYSDATE, 'D') = '6' THEN dbms_output.put_line('TODAY IS FRIDAY'); ELSE dbms_output.put_line('TODAY IS NOT FRIDAY'); END IF; END; / ``` ![problem7](./pics/PROBLEM7.png) ## problem 8 Write a PL/SQL program to test if your date of birth falls on Friday, Saturday, or Sunday. Display the result if it’s Friday, Saturday, or Sunday, otherwise print "It falls on a week-day". ```plsql declare lv_birthday_date DATE := '07-jul-1993'; BEGIN IF to_char (lv_birthday_date, 'D') = '6' THEN dbms_output.put_line('Birthday on FRIDAY'); ELSE dbms_output.put_line('birthday NOT on FRIDAY'); END IF; END; / ``` ![problem8](./pics/problem8.png) ## problem 9 Write a PL/SQL program that declares a variable V_COUNTER, assigns 1 to it, and then adds 1 to the variable 5 times. Display the value of the variable every time it changes. Use the Basic LOOP structure. ```plsql declare lv_counter_num number(2) := 0; begin loop lv_counter_num := lv_counter_num + 1; exit when lv_counter_num >= 5; end loop; dbms_output.put_line('result val ' || lv_counter_num); end; / ``` [problem9](./pics/problem 9.PNG) ## problem 10 Write a PL/SQL program that declares a variable V_COUNTER, assigns 1 to it, and then adds 1 to the variable 5 times. Display the value of the variable every time it changes. Use the WHILE … LOOP structure ```plsql declare V_COUNTER number(2) := 1; begin WHILE V_COUNTER <= 5 LOOP V_COUNTER := V_COUNTER + 1; dbms_output.put_line('CUR VAL ' || V_COUNTER); end loop; end; / ``` ![problem10]("./pics/PROBLEM10.png") ## problem 11 Write a PL/SQL program that declares a variable V_COUNTER, assigns 1 to it, and then adds 1 to the variable 5 times. Display the value of the variable every time it changes. Use the FOR LOOP structure. ```plsql begin FOR V_COUNTER IN 1..6 LOOP dbms_output.put_line('CUR VAL ' || V_COUNTER); end loop; end; / ``` ![problem11](./pics/PROBLEM11.png) ## problem 12 Write a PL/SQL program that declares a variable, assigns to it your birthday, and checks what day you were born on. Use the CASE expression. Display the result. ```plsql declare lv_birthday_date DATE := '07-jul-1993'; LV_DAY_CHAR CHAR(1) := to_char (lv_birthday_date, 'D'); LV_TEXTDAY_VCHAR VARCHAR(10); BEGIN CASE LV_DAY_CHAR WHEN '1' THEN LV_TEXTDAY_VCHAR := 'SUNDAY'; WHEN '2' THEN LV_TEXTDAY_VCHAR := 'MONDAY'; WHEN '3' THEN LV_TEXTDAY_VCHAR := 'TUESDAY'; WHEN '4' THEN LV_TEXTDAY_VCHAR := 'WEDNESDAY'; WHEN '5' THEN LV_TEXTDAY_VCHAR := 'THURSDAY'; WHEN '6' THEN LV_TEXTDAY_VCHAR := 'FRIDAY'; WHEN '7' THEN LV_TEXTDAY_VCHAR := 'SATURDAY'; END CASE; dbms_output.put_line('YOU WERE BORN ON A ' || LV_TEXTDAY_VCHAR); END; ``` ![problem12](./pics/PROBLEM12.png) \ No newline at end of file
 /* # problem 1 Start SQL*Plus, log onto the database, and set up the PL/SQL output buffer using the SET SERVEROUTPUT ON command (Note: if the SET SERVEROUTPUT ON command is not used, the output will not be displayed on the screen). */ /* ## problem 2 Write a PL/SQL program to display your name. */ begin dbms_output.put_line('MICHAEL LUNDQUIST'); end; / /* ## problem 3 Write a PL/SQL program that declares two variables (variable1 and variable2), sets their values to zero, and performs the following calculation: variable2=variable1+1 and displays the value of variable2. */ declare variable1 NUMBER(2) := 0; variable2 NUMBER(2) := 0; begin variable2 := variable1 + 1; dbms_output.put_line('the value of var2 is now ' || variable2); end; / /* ## Problem 4 Write a PL/SQL program to display the current date. */ begin dbms_output.put_line('today is ' || sysdate); end; / /* ## problem 5 Write a PL/SQL program to declare a variable V_NUMBER, assign a value to it (any number), and display its’ value if the number is positive. */ declare V_NUMBER NUMBER(10) := 46290; begin IF V_NUMBER >= 0 THEN dbms_output.put_line('V_NUMBER IS ' || V_NUMBER); END IF; end; / /* ## problem 6 Write a PL/SQL program to declare a variable V_NUMBER, assign a value to it (any number), and test if it is a positive number or a negative number. Display the result. */ declare V_NUMBER NUMBER(10) := 46290; begin IF V_NUMBER > 0 OR V_NUMBER < 0 THEN dbms_output.put_line('V_NUMBER IS ' || V_NUMBER); END IF; end; / /* ## problem 7 Write a PL/SQL program to test whether today is Friday or not. Display the result. */ BEGIN IF to_char (SYSDATE, 'D') = '6' THEN dbms_output.put_line('TODAY IS FRIDAY'); ELSE dbms_output.put_line('TODAY IS NOT FRIDAY'); END IF; END; / /* ## problem 8 Write a PL/SQL program to test if your date of birth falls on Friday, Saturday, or Sunday. Display the result if it’s Friday, Saturday, or Sunday, otherwise print "It falls on a week-day". */ declare lv_birthday_date DATE := '07-jul-1993'; BEGIN IF to_char (lv_birthday_date, 'D') = '6' THEN dbms_output.put_line('Birthday on FRIDAY'); ELSE dbms_output.put_line('birthday NOT on FRIDAY'); END IF; END; / /* ## problem 9 Write a PL/SQL program that declares a variable V_COUNTER, assigns 1 to it, and then adds 1 to the variable 5 times. Display the value of the variable every time it changes. Use the Basic LOOP structure. */ declare lv_counter_num number(2) := 0; begin loop lv_counter_num := lv_counter_num + 1; exit when lv_counter_num >= 5; end loop; dbms_output.put_line('result val ' || lv_counter_num); end; / /* ## problem 10 Write a PL/SQL program that declares a variable V_COUNTER, assigns 1 to it, and then adds 1 to the variable 5 times. Display the value of the variable every time it changes. Use the WHILE … LOOP structure */ declare V_COUNTER number(2) := 1; begin WHILE V_COUNTER <= 5 LOOP V_COUNTER := V_COUNTER + 1; dbms_output.put_line('CUR VAL ' || V_COUNTER); end loop; end; / /* ## problem 11 Write a PL/SQL program that declares a variable V_COUNTER, assigns 1 to it, and then adds 1 to the variable 5 times. Display the value of the variable every time it changes. Use the FOR LOOP structure. */ begin FOR V_COUNTER IN 1..6 LOOP dbms_output.put_line('CUR VAL ' || V_COUNTER); end loop; end; / /* ## problem 12 Write a PL/SQL program that declares a variable, assigns to it your birthday, and checks what day you were born on. Use the CASE expression. Display the result. */ declare lv_birthday_date DATE := '07-jul-1993'; LV_DAY_CHAR CHAR(1) := to_char (lv_birthday_date, 'D'); LV_TEXTDAY_VCHAR VARCHAR(10); BEGIN CASE LV_DAY_CHAR WHEN '1' THEN LV_TEXTDAY_VCHAR := 'SUNDAY'; WHEN '2' THEN LV_TEXTDAY_VCHAR := 'MONDAY'; WHEN '3' THEN LV_TEXTDAY_VCHAR := 'TUESDAY'; WHEN '4' THEN LV_TEXTDAY_VCHAR := 'WEDNESDAY'; WHEN '5' THEN LV_TEXTDAY_VCHAR := 'THURSDAY'; WHEN '6' THEN LV_TEXTDAY_VCHAR := 'FRIDAY'; WHEN '7' THEN LV_TEXTDAY_VCHAR := 'SATURDAY'; END CASE; dbms_output.put_line('YOU WERE BORN ON A ' || LV_TEXTDAY_VCHAR); END; / \ No newline at end of file

12.4 KB

10.4 KB

27.6 KB

6.89 KB

9.97 KB

10.2 KB

10.4 KB

10.8 KB

10.7 KB

2.37 KB

6.46 KB

13.2 KB

Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!