Write a procedure to genearte a report of all employee with managers name details with | (pipe delimiter) in unix development server /tmp path.
Example:**
Emp ID|Emp Name|Manager Name|Sal|Dept No|Location -------header**
7369|SMITH|FORD|800|20|DALLAS
Total Record|1 ------Trailer
f_handle2 utl_file.file_type;
begin
f_handle2 := utl_file.fopen(
'TESTING_DIR' -- File location
, 'EMP_DET_WITH_MANA_NAME2' -- File name
, 'w'); -- Open mode: w = write.
for i in (select empno,ename,manager_name,sal,deptno,loc,count(empno) from t77)
loop
utl_file.putf(f_handle2,i.empno||'|'||i.ename||'|'||i.manager_name||'|'||i.sal||'|'||i.deptno||'"'||i.loc);
UTL_FILE.NEW_LINE(f_handle2);
end loop;
utl_file.fclose(f_handle2);
exception
when others then
dbms_output.put_line('ERROR: ' || SQLCODE || ' - ' || SQLERRM);
raise;
end;
Related
I created the following PL/SQL anonymous block. The cursor below retrieves data from the select statement:
select mod_benutzer, count(*)
from dok_auspraegung
where parent_objekt_id = 1093
group by mod_benutzer;
This statement displays exactly two records:
DDMS_USER | 8
HU2MAMU | 14
But when I want to display these two records by cursor, it displays "HU2MAMU|14" two times like below:
Modifications:
DDMS_USER, 8x
HU2MAMU, 14x
HU2MAMU, 14x
declare
my_exception_1 exception;
var_parent_objekt_id dok_auspraegung.parent_objekt_id%TYPE := 1093;
var_date varchar(30);
var_mod_benutzer varchar2(10);
var_benutzer_modifs number;
cursor cursor_dok_auspraegung
is select mod_benutzer, count(*) from dok_auspraegung
where parent_objekt_id = 10935797565
group by mod_benutzer;
begin
select distinct to_char(mod_datum,'YYYY-MON-DD') into var_date from dok_auspraegung where parent_objekt_id = var_parent_objekt_id;
IF var_date is not null THEN
dbms_output.put_line('Parent Object ID' || ': ' || var_parent_objekt_id);
dbms_output.put_line('Date: ' || ' ' || var_date);
ELSE RAISE my_exception_1;
END IF;
open cursor_dok_auspraegung;
dbms_output.put_line('Modifications:');
loop
fetch cursor_dok_auspraegung into var_mod_benutzer, var_benutzer_modifs;
dbms_output.put(var_mod_benutzer);
dbms_output.put_line(', ' || var_benutzer_modifs || 'x');
exit when cursor_dok_auspraegung%notfound;
end loop;
dbms_output.put_line(cursor_dok_auspraegung%rowcount);
close cursor_dok_auspraegung;
exception
when NO_DATA_FOUND then
dbms_output.put_line('Parent Object ID not found!');
when my_exception_1 then
dbms_output.put_line('');
end;
What is the reason of that?
Because exiting from the cursor occurs after printing the value of the variables in the current case, this repeats the last value to be printed. So, it should occur before printing as follows
loop
fetch cursor_dok_auspraegung into var_mod_benutzer, var_benutzer_modifs;
exit when cursor_dok_auspraegung%notfound;
dbms_output.put(var_mod_benutzer);
dbms_output.put_line(', ' || var_benutzer_modifs || 'x');
end loop;
I need to create a procedure that allows a user to input information for an order (which is below), but also for n number of suborders (where 2 ≤ n ≥ 10). How would I be able to incorporate this into the procedure I already have? I'm using SQLPlus. Any help or advice would be greatly appreciated. :)
CREATE OR REPLACE PROCEDURE VIEW_ORDER(ORDERS IN CHAR)
AS
CURSOR ORDER_CUR IS
SELECT * FROM SUBORDERS
WHERE ORDER_NO = ORDERS;
BEGIN
FOR O_REC IN ORDER_CUR
LOOP
DBMS_OUTPUT.PUT_LINE('Product Code: ' || O_REC.prod_id
|| ' Order: ' || O_REC.order_no
|| ' Suborder: ' || O_REC.suborder_no
|| ' Quantity: ' || O_REC.quantity);
END LOOP;
EXCEPTION
WHEN no_data_found THEN
DBMS_OUTPUT.PUT_LINE ('Product number does not exist');
WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE ('Operation failed ' || 'SQLCODE: ' || SQLCODE);
ROLLBACK;
END;
/
You can use for an input sqlplus command ACCEPT and make another loop to take n suborders.
If I didn't missunderstood your question it would be something like this:
-- You have to create the input outside the procedure
accept n char prompt 'Please enter n suborders: '
CREATE OR REPLACE PROCEDURE VIEW_ORDER(ORDERS IN CHAR)
AS
CURSOR ORDER_CUR IS
SELECT * FROM SUBORDERS
WHERE ORDER_NO = ORDERS;
BEGIN
FOR O_REC IN ORDER_CUR
LOOP
-- Here we check if n<=2
IF n>=2 THEN
-- here if n<=10
WHILE n<=10
LOOP
DBMS_OUTPUT.PUT_LINE('Product Code: ' || O_REC.prod_id
|| ' Order: ' || O_REC.order_no
|| ' Suborder: ' || O_REC.suborder_no
|| ' Quantity: ' || O_REC.quantity);
END LOOP;
END IF;
END LOOP;
EXCEPTION
WHEN no_data_found THEN
DBMS_OUTPUT.PUT_LINE ('Product number does not exist');
WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE ('Operation failed ' || 'SQLCODE: '
||
SQLCODE);
ROLLBACK;
END;
/
my_images table consists of a blob column called images. I need to write these images to my image_dir which is 'C:\TEMP'.
When the following PL/SQL code is executed, only the first image is written to the directory as an image. The second blob is written as 0 byte (empty) and there is no other (Should be a total number of 8).
So the loop does not seem to work correctly. I am using Oracle 11g Express Edition (XE) and SQL Developer. Here is the error and the code:
Error starting at line : 53 in command -
BEGIN write_blob_to_file_v5; END;
Error report -
ORA-01403: no data found
ORA-06512: at "SYS.DBMS_LOB", line 1056
ORA-06512: at "SYS.WRITE_BLOB_TO_FILE_V5", line 40
ORA-06512: at line 1
01403. 00000 - "no data found"
*Cause: No data was found from the objects.
*Action: There was no data from the objects which may be due to end of fetch.
PL/SQL code
CREATE OR REPLACE PROCEDURE write_blob_to_file_v5
AS
v_lob_image_name VARCHAR (100);
v_lob_image_id NUMBER;
v_blob BLOB;
v_buffer RAW (32767);
v_buffer_size BINARY_INTEGER;
v_amount BINARY_INTEGER;
v_offset NUMBER (38) := 1;
v_chunksize INTEGER;
v_out_file UTL_FILE.file_type;
BEGIN
FOR i IN (SELECT DBMS_LOB.getlength (v_blob) v_len,
image_id v_lob_image_id,
"IMAGE_NAME" v_lob_image_name,
image v_blob
FROM sys.MY_IMAGES)
LOOP
v_chunksize := DBMS_LOB.getchunksize (i.v_blob);
IF (v_chunksize < 32767)
THEN
v_buffer_size := v_chunksize;
ELSE
v_buffer_size := 32767;
END IF;
v_amount := v_buffer_size;
DBMS_LOB.open (i.v_blob, DBMS_LOB.lob_readonly);
v_out_file :=
UTL_FILE.fopen (
location => 'IMAGE_DIR',
filename => ( ''
|| i.v_lob_image_id
|| '_'
|| i.v_lob_image_name
|| '.JPG'),
open_mode => 'wb',
max_linesize => 32767);
WHILE v_amount >= v_buffer_size
LOOP
DBMS_LOB.read (i.v_blob,
v_amount,
v_offset,
v_buffer);
v_offset := v_offset + v_amount;
UTL_FILE.put_raw (file => v_out_file,
buffer => v_buffer,
autoflush => TRUE);
UTL_FILE.fflush (file => v_out_file);
--utl_file.new_line(file => v_out_file);
END LOOP;
UTL_FILE.fflush (v_out_file);
UTL_FILE.fclose (v_out_file);
DBMS_LOB.close (i.v_blob);
END LOOP;
END;
The main problem is related NOT to re-initialize the parameter v_offset to 1 ( as in the declaration section ) :
v_offset := 1;
for every image id just before
v_chunksize := dbms_lob.getchunksize(i.v_blob);
assignment.
Moreover, the problem may arise about not yet closed or already opened blobs. To prevent these,
replace
dbms_lob.open(i.v_blob,dbms_lob.lob_readonly);
with
if ( dbms_lob.isopen(i.v_blob)=0 ) then
dbms_lob.open(i.v_blob,dbms_lob.lob_readonly);
end if;
and
replace
dbms_lob.close(i.v_blob);
with
if ( dbms_lob.isopen(i.v_blob)=1 ) then
dbms_lob.close(i.v_blob);
end if;
I am trying to write a procedure that will produce the following output
exec WinOrLose(4)
Welcome to the Win or Lose Game. Your number is 4.
You win.
You lose.
You win.
You lose.
==> You lose!
So far I have this:
CREATE or REPLACE Procedure WinOrLose (
p_choice number ) AS
v_answer number;
DECLARE
v_answer := p_choice
BEGIN
dbms_output.put_line ('Welcome to the Win or Lose Game. Your number is ' ||
v_answer);
FOR v_answer in 1..10
IF MOD(v_answer, 2) = 0 THEN -- v_answer is even
dbms_output.put_line (You lose)
END;
/
I'm unsure of where to go from there. My thought process (psuedocode) is this:
SET v_answer := 1
While Loop (outside)
MOD(v_answer,2) = 0 then dbms.output (YOU LOSE)
ELSE
dbms.output (YOU WIN)
end if;
v_answer := p_choice
CREATE or REPLACE Procedure WinOrLose (
p_choice number ) AS
BEGIN
dbms_output.put_line ('Welcome to the Win or Lose Game. Your number is ' ||
p_choice);
FOR v_counter in 1..p_choice LOOP
IF (MOD(v_counter, 2) = 0)
THEN
dbms_output.put_line ('You win');
ELSE
dbms_output.put_line ('You lose');
END IF;
END LOOP;
IF (MOD(p_choice , 2) = 0)
THEN
dbms_output.put_line ('==> You win!');
ELSE
dbms_output.put_line ('==> You lose!');
END IF;
END;
/
I'm writing a pretty basic procedure where I need to substract two long variables and assign the value to the other variable. But the code doesn't compile and I am getting hopeless - why is that?
create or replace PROCEDURE TrendCalculator(p_id Prodeje.product%TYPE)
AS
v_week_last Prodeje.WEEK%TYPE;
v_week_current Prodeje.WEEK%TYPE;
v_year_last Prodeje.YEAR%TYPE;
v_year_current Prodeje.YEAR%TYPE;
v_weekly_sales_last PRODEJE.SALES%TYPE;
v_weekly_sales_current PRODEJE.SALES%TYPE;
v_pomocna PRODEJE.SALES%TYPE;
CURSOR c_data IS SELECT WEEK, YEAR, SALES FROM Prodeje WHERE PRODUCT = p_id ORDER BY YEAR, WEEK ASC;
BEGIN
v_pomocna := 0;
OPEN c_data;
LOOP
FETCH c_data INTO v_week_current, v_year_current, v_weekly_sales_current;
EXIT WHEN c_data%NOTFOUND;
IF (v_weekly_sales_last IS NOT NULL) THEN
DBMS_OUTPUT.PUT_LINE(p_id || ' ' || v_week_current || ' ' || v_year_current || ' ' || v_weekly_sales_current);
v_pomocna := (v_weekly_sales_current - v_weekly_sales_last);
END IF;
v_week_last := v_week_current;
v_year_last := v_year_current;
v_weekly_sales_last := v_weekly_sales_current;
END LOOP;
CLOSE c_data;
END;
The Error messages I'm getting are:
Error(19,9): PL/SQL: Statement ignored
Error(19,95): PLS-00306: wrong number or types of arguments in call to '-'
And PRODEJE.SALES Datatype is LONG.
v_weekly_sales_last is not set to anything. So line 19 evaluates to
v_pomocna := (v_weekly_sales_current - );
Which seems to be the cause of your error.