Raise Exception In For Loop
Currently my loop code is
FOR i IN 2..vt_records.count
LOOP
EXIT WHEN INSTR(vt_records(i), v_delimiter,2) = 0;
csv_to_array(vt_records(i), vt_record, v_delimiter);
--| Workaround for the case when the last column is null
IF vt_record.count < v_expected_csv_cols
THEN
FOR i IN 1..(v_expected_csv_cols - vt_record.COUNT)
LOOP
--RAISE_APPLICATION_ERROR(-20000, 'vt_Record.COUNT=' || vt_record.count || ' - loopcount=' || (v_expected_csv_cols-vt_record.COUNT));
vt_record(vt_record.COUNT+1) := NULL;
END LOOP;
END IF;
begin
INSERT INTO cit_interface_correlation (
massupdateid,
primarymatkey_hr,
geokey_hr,
depmatkey_hr,
promokey_hr,
statcalcday,
usercorfactor,
inst_user,
inst_session,
inst_date
VALUES
seq_cit_interface_correlation.nextval,
vt_record(1),
TRIM(vt_record(2)),
TRIM(vt_record(3)),
vt_record(4),
TO_DATE(TRIM(vt_record(5)),'DD.MM.YYYY'),
TRIM(vt_record(6)),
v('APP_USER'),
v('APP_SESSION'),
sysdate
end;
END LOOP;
{code]
What I need to do is raise an exception if vt_record(5) is greater than sysdate.
If any line has a date greater than sysdate then the loop should fail and not carry on.
Cheers
Gus
Like this?
for i in 2..vt_records.count
loop
exit when instr(vt_records(i), v_delimiter,2) = 0;
csv_to_array(vt_records(i), vt_record, v_delimiter);
if vt_record.count < v_expected_csv_cols
then
for i in 1..(v_expected_csv_cols - vt_record.count)
loop
vt_record(vt_record.count+1) := null;
end loop;
end if;
if vt_record(5) > sysdate then
raise_application_error(-20001, 'vt_record(5) is greater than sysdate');
else
insert into cit_interface_correlation
massupdateid,
primarymatkey_hr,
geokey_hr,
depmatkey_hr,
promokey_hr,
statcalcday,
usercorfactor,
inst_user,
inst_session,
inst_date
values
seq_cit_interface_correlation.nextval,
vt_record(1),
trim(vt_record(2)),
trim(vt_record(3)),
vt_record(4),
to_date(trim(vt_record(5)),'dd.mm.yyyy'),
trim(vt_record(6)),
v('APP_USER'),
v('APP_SESSION'),
sysdate
end if;
end loop;
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Exception statement for looping query
Hi this is my query to date:
declare
cursor curs is
select name_id_no, incident_date
from MICHAELC.Food_Nov_01_final t
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w_cat_latest number(4,0);
w_cat_latest_date date;
w_cat_max number(4,0);
w_cat_max_date date;
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w_cat_min_date date;
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I receive the following error:
Error report:
ORA-01403: no data found
ORA-06512: at line 37
01403. 00000 - "no data found"
*Cause:
*Action:
I want to use an exception statement, something along the lines of
exception when no_data_found then
w_cat_latest_date := NULL;
w_cat_latest := NULL;
w_cat_max := NULL;
w_cat_max_date := NULL;
w_cat_min := NULL;
w_cat_min_date := NULL;I'm just not really sure how to use the exception statement correctly and if it is the best way to handle this error. Thank-you for your time and help.
Banner:
Oracle Database 11g Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
"CORE 11.2.0.2.0 Production"
TNS for Linux: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - ProductionLike this;-
declare
cursor curs is
select name_id_no, incident_date
from MICHAELC.Food_Nov_01_final t
--where rownum < 6
for update of cat_latest;
w_cat_latest number(4,0);
w_cat_latest_date date;
w_cat_max number(4,0);
w_cat_max_date date;
w_cat_min number(4,0);
w_cat_min_date date;
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select max(cat_score_date) into w_cat_latest_date
from rbn_cat
where customer_no = i.name_id_no
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EXCEPTION
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and cat_score_date = w_cat_latest_date
and rownum = 1;
EXCEPTION
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w_cat_latest
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END;
/* you get the idea
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from rbn_cat
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where customer_no = i.name_id_no
and cat_score = w_cat_min
and months_between(i.incident_date,cat_score_date) between 0 and 12
and rownum = 1;
update MICHAELC.Food_Nov_01_final
set cat_latest = w_cat_latest
, cat_latest_date = w_cat_latest_date
, cat_max = w_cat_max
, cat_max_date = w_cat_max_date
, cat_min = w_cat_min
, cat_min_date = w_cat_min_date
where current of curs;
end loop;
end;
/ -
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Message was edited by:
uj2uj2,
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Neither of these levels optimise cursor-for-loops.
The reason your explicit fetch doesn't display the same behaviour is that the compiler doesn't optimise those.
Of course I could be wrong, but this is where I'd start testing.
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instructions:
This will incorporate arrays, for loops, and Frames all in one.
Create a panel containing an array of 16 TextArea components that change color to correspond with the start, stop, and step values entered by the user. Perform the following tasks to create the Checkerboard Array application shown below. When the user enters the start, stop, and step fields and then clicks the Go button, the results are also shown below.
1. Call your application Checkerboard.java
2. You will need the following variables� declare them as private:
a. 16 component TextArea array
b. a Panel to hold the array
c. 3 TextField components with length of 10
d. 3 int variables to receive the start, stop, and step values
e. 3 Labels to display the words Start, Stop, and Step
f. a Go button
g. a Clear button
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d. set the Panel for the TextArea components to GridLayout with 4 rows, 4 columns, and both gaps set to 10
e. set the Panel for the TextFields, Labels, and button to GridLayout with 3 rows, 3 columns, and both gaps set to 5
f. add the components to their respective Panels
g. make the buttons clickable
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i. Enter the addWindowListener() method described in the chapter� this is the method that overrides the click of the X so it terminates the application
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a. set the bounds for the frame to 50, 100, 300, 400
b. set the title bar caption to Checkerboard Array
c. use the setVisible() method to display the application Frame during execution
6. After you get all of this complete, include error handling to make sure:
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b. the start value is greater than or equal to 1 and less than or equal to 16
c. the stop value is greater than or equal to 1 and less than or equal to 16
d. the step value is greater than or equal to 1 and less than or equal to 16
e. the start condition is less than the stop condition
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7. Create a clear button as seen in the example below. This button should:
a. clear out all 3 TextFields
b. change the background color of all TextArea array elements to white
c. put the cursor in the start field
8. Document!!
my code is:
//packages to import
import javax.swing.JOptionPane;
import java.awt.*;
import java.awt.event.*;
public class Checkerboard extends Frame implements ActionListener
private Panel topPanel;
private TextArea topDisplay[];
private Panel bottomPanel;
private TextField startField = new TextField(10);
private TextField stopField = new TextField(10);
private TextField stepField = new TextField(10);
private Label startLabel = new Label ("Start");
private Label stopLabel = new Label ("Stop");
private Label stepLabel = new Label ("Step");
private Button goButton;
private Button clearButton;
private boolean clearText;
private boolean first;
private int start;
private int stop;
private int step;
//constructor methods
public Checkerboard()
//construct components and initialize beginning values
topPanel = new Panel();
topDisplay = new TextArea[16];
goButton = new Button("Go");
clearButton = new Button("Clear");
first = true;
bottomPanel = new Panel();
int start = 0;
int stop = 0;
int step = 0;
bottomPanel.add(startField);
bottomPanel.add(stopField);
bottomPanel.add(stepField);
bottomPanel.add(startLabel);
bottomPanel.add(stopLabel);
bottomPanel.add(stepLabel);
bottomPanel.add(goButton);
goButton.addActionListener(this);
bottomPanel.add(clearButton);
clearButton.addActionListener(this);
clearText = true;
//set layouts for the Frame and Panels
setLayout(new BorderLayout());
topPanel.setLayout(new GridLayout(4, 4, 10, 10));
bottomPanel.setLayout(new GridLayout(3, 3, 5, 5));
//construct the Display
for(int i = 0; i <= 15; i++)
topDisplay[i] = new TextArea(null, 3, 5, 3);
topDisplay.setText(String.valueOf(i+1));
topDisplay[i].setEditable(false);
topPanel.add(topDisplay[i]);
//add components to frame
add(topPanel, BorderLayout.NORTH);
add(bottomPanel, BorderLayout.CENTER);
//allow the x to close the application
addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
} //end window adapter
public static void main(String args[])
Checkerboard f = new Checkerboard();
f.setTitle("Checkerboard Array");
f.setBounds(50, 100, 300, 400);
f.setLocationRelativeTo(null);
f.setVisible(true);
} //end main
public void actionPerformed(ActionEvent e)
//test go
String arg = e.getActionCommand();
//go button was clicked
if(arg.equals("Go"))
//convert data in TextField to int
int start = Integer.parseInt(startField.getText());
int stop = Integer.parseInt(stopField.getText());
int step = Integer.parseInt(stepField.getText());
if((start <= 1) && (start > 16))
JOptionPane.showMessageDialog(null, "You must enter start between 1 and 16", "Error", JOptionPane.ERROR_MESSAGE);
startField.setText(" ");
startField.requestFocus();
if ((stop < 1) && (stop > 16))
JOptionPane.showMessageDialog(null, "You must enter stop between 1 and 16", "Error", JOptionPane.ERROR_MESSAGE);
stopField.setText(" ");
stopField.requestFocus();
if ((step < 1) && (step > 16))
JOptionPane.showMessageDialog(null, "You must enter step between 1 and 16", "Error", JOptionPane.ERROR_MESSAGE);
stepField.setText(" ");
stepField.requestFocus();
if (start < stop)
JOptionPane.showMessageDialog(null, "Stop cannot be larger than start", "Error", JOptionPane.ERROR_MESSAGE);
startField.setText(" ");
stopField.setText(" ");
stepField.setText(" ");
startField.requestFocus();
for(int i = 0; i <=16; i++)
topDisplay[i].setBackground(Color.blue);
for(int i = start; i <= stop; step++)
topDisplay[i].setBackground(Color.yellow);
} //end the if go
//clear button was clicked
if(arg.equals("Clear"))
clearText = true;
startField.setText("");
stopField.setText("");
stepField.setText("");
first = true;
setBackground(Color.white);
startField.requestFocus();
} //end the if clear
}//end action listener
}//end classgot the yellow boxes to come up but just one box.....so is there something wrong with my yellow set background because I am not seeing any more errors
//packages to import
import javax.swing.JOptionPane;
import java.awt.*;
import java.awt.event.*;
public class Checkerboard extends Frame implements ActionListener
private Panel topPanel;
private TextArea topDisplay[];
private Panel bottomPanel;
private TextField startField = new TextField(10);
private TextField stopField = new TextField(10);
private TextField stepField = new TextField(10);
private Label startLabel = new Label ("Start");
private Label stopLabel = new Label ("Stop");
private Label stepLabel = new Label ("Step");
private Button goButton;
private Button clearButton;
private boolean clearText;
private boolean first;
private int start;
private int stop;
private int step;
//constructor methods
public Checkerboard()
//construct components and initialize beginning values
topPanel = new Panel();
topDisplay = new TextArea[16];
goButton = new Button("Go");
clearButton = new Button("Clear");
first = true;
bottomPanel = new Panel();
int start = 0;
int stop = 0;
int step = 0;
bottomPanel.add(startField);
bottomPanel.add(stopField);
bottomPanel.add(stepField);
bottomPanel.add(startLabel);
bottomPanel.add(stopLabel);
bottomPanel.add(stepLabel);
bottomPanel.add(goButton);
goButton.addActionListener(this);
bottomPanel.add(clearButton);
clearButton.addActionListener(this);
clearText = true;
//set layouts for the Frame and Panels
setLayout(new BorderLayout());
topPanel.setLayout(new GridLayout(4, 4, 10, 10));
bottomPanel.setLayout(new GridLayout(3, 3, 5, 5));
//construct the Display
for(int i = 0; i <= 15; i++)
topDisplay[i] = new TextArea(null, 3, 5, 3);
topDisplay.setText(String.valueOf(i+1));
topDisplay[i].setEditable(false);
topPanel.add(topDisplay[i]);
//add components to frame
add(topPanel, BorderLayout.NORTH);
add(bottomPanel, BorderLayout.CENTER);
//allow the x to close the application
addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
} //end window adapter
public static void main(String args[])
Checkerboard f = new Checkerboard();
f.setTitle("Checkerboard Array");
f.setBounds(50, 100, 300, 400);
f.setLocationRelativeTo(null);
f.setVisible(true);
} //end main
public void actionPerformed(ActionEvent e)
boolean done = false;
//test go
String arg = e.getActionCommand();
//go button was clicked
if(arg.equals("Go"))
//convert data in TextField to int
int start = Integer.parseInt(startField.getText());
int stop = Integer.parseInt(stopField.getText());
int step = Integer.parseInt(stepField.getText());
while(!done)
try
if((start <= 1) && (start > 16)) throw new NumberFormatException();
else done = true;
} //end try
catch (NumberFormatException f)
JOptionPane.showMessageDialog(null, "You must enter start between 1 and 16", "Error", JOptionPane.ERROR_MESSAGE);
startField.setText(" ");
startField.requestFocus();
} //end catch
try
if ((stop < 1) && (stop > 16)) throw new NumberFormatException();
else done = true;
} //end try
catch (NumberFormatException f)
JOptionPane.showMessageDialog(null, "You must enter stop between 1 and 16", "Error", JOptionPane.ERROR_MESSAGE);
stopField.setText(" ");
stopField.requestFocus();
} //end catch
try
if ((step < 1) && (step > 16)) throw new NumberFormatException();
else done = true;
} //end try
catch (NumberFormatException f)
JOptionPane.showMessageDialog(null, "You must enter step between 1 and 16", "Error", JOptionPane.ERROR_MESSAGE);
stepField.setText(" ");
stepField.requestFocus();
} //end catch
try
if (start > stop) throw new NumberFormatException();
else done = true;
} //end try
catch (NumberFormatException f)
JOptionPane.showMessageDialog(null, "Stop cannot be larger than start", "Error", JOptionPane.ERROR_MESSAGE);
startField.setText(" ");
stopField.setText(" ");
stepField.setText(" ");
startField.requestFocus();
} //end catch
} //end while
for(int i = 0; i <=15; i++)
topDisplay[i].setBackground(Color.blue);
for(int i = start; i <= stop; step++)
topDisplay[i].setBackground(Color.yellow);
} //end the if go
//clear button was clicked
if(arg.equals("Clear"))
clearText = true;
startField.setText("");
stopField.setText("");
stepField.setText("");
first = true;
setBackground(Color.white);
startField.requestFocus();
} //end the if clear
}//end action listener
}//end class -
How to ignore error and continue with next value in PL/SQL FOR loop?
hi,
When the DROP INDEX statement fails it have to continue with the next value in FOR loop without exiting from the loop. Can anyone tell me how to do this?
DECLARE
CURSOR aud_cur IS
SELECT key_col_idx FROM audience_work where aud_ref_id between 106 and 109;
BEGIN
FOR aud_row IN aud_cur LOOP
EXECUTE IMMEDIATE
'DROP INDEX ' || aud_row.key_col_idx;
END LOOP;
END;
Thanks,
NobleDECLARE
CURSOR aud_cur
IS
SELECT key_col_idx FROM audience_work where aud_ref_id between 106 and 109;
BEGIN
FOR aud_row IN aud_cur LOOP
begin
EXECUTE IMMEDIATE 'DROP INDEX ' || aud_row.key_col_idx;
exception
when others then
if sqlcode = -01418 then
dbms_output.put_line(' index does not exist ');
else
dbms_output.put_line(sqlcode);
raise;
end if;
end;
END LOOP;
END;
/ -
Replace the following open/fetch/close statements with a cursor FOR loop
Hi anyone could you please help me,
I would like to replace the following open/fetch/close statements with a cursor FOR loop.
Codes are:
CREATE OR REPLACE PROCEDURE COMOES.orchid_shipment_interface IS
-- get the com shipment header records
CURSOR c_com_shphdr ( p_dwn_end_dt DATE ) IS
SELECT custno client_id
, plheadno plheadno
, DECODE(carr_no,'FEDX',lading_no,'UPS',lading_no,carrier_pro_no) tracking_no
, carr_no||'/'||carr_method carrier_id
, plantid plant_id
, carr_no
, lading_no
, del_custaddr ship_to_id
, ol_type cfm_order_type
, del_custno
, shipterm freight_terms
, del_custattn attn_line
, custaddr
FROM com_plhead@com_pricing.world
WHERE status = '9'
AND (mod_dat) > p_dwn_end_dt;
-- get the com shipment address records
CURSOR c_com_shpadr (p_custaddr VARCHAR2) IS
SELECT name1 addr_name
, street1 addr_line1
, street2 addr_line2
, city city
, state state_cd
, zip zip
, country country_cd
, phone work_phone
, email email1
FROM com_address@com_pricing.world
WHERE addr_id = p_custaddr;
-- get the com shipment detail records
CURSOR c_com_shpdtl ( p_plheadno NUMBER) IS
SELECT pll.plheadno pllheadno
, pll.pllineno ord_line_no
, pll.ol_no erp_line_no
, pll.ol_segno
, pll.fg_id sku
, pll.qty_shipped ship_qty
, pll.ordno erp_ord_no
FROM com_plline@com_pricing.world pll
WHERE pll.plheadno = p_plheadno
AND NOT EXISTS (SELECT '1'
FROM com_pkg_int_interface@com_pricing.world cpi
WHERE pll.ordno = cpi.ordno
AND pll.ol_no = cpi.ol_no);
-- type declaration
-- type declaration of com table.
TYPE t_com_shphdr IS TABLE OF c_com_shphdr%ROWTYPE INDEX BY BINARY_INTEGER;
TYPE t_orchid_shphdr IS TABLE OF orchid_shipment_hdr_intf%ROWTYPE INDEX BY BINARY_INTEGER;
TYPE t_com_shpadr IS TABLE OF c_com_shpadr%ROWTYPE INDEX BY BINARY_INTEGER;
TYPE t_orchid_shpadr IS TABLE OF orchid_shipment_address_intf%ROWTYPE INDEX BY BINARY_INTEGER;
TYPE t_com_shpdtl IS TABLE OF c_com_shpdtl%ROWTYPE INDEX BY BINARY_INTEGER;
TYPE t_orchid_shpdtl IS TABLE OF orchid_shipment_dtl_intf%ROWTYPE INDEX BY BINARY_INTEGER;
lv_company_code com_customer.business_unit%TYPE;
lv_erp_ord_no com_plline.ordno%TYPE;
lv_actual_ship_date com_plline.confirm_date%TYPE;
lv_po_no com_oline.po_no%TYPE;
lv_ord_date com_oline.entrydate%TYPE;
lv_hdr_batch_ctrl_no download_batch_info.batch_ctrl_no%TYPE;
lv_adr_batch_ctrl_no download_batch_info.batch_ctrl_no%TYPE;
lv_dtl_batch_ctrl_no download_batch_info.batch_ctrl_no%TYPE;
lv_sku_desc com_salesitem.title%TYPE;
lv_ord_qty com_oldelseg.qty%TYPE;
lr_com_shphdr t_com_shphdr;
lr_orchid_shphdr t_orchid_shphdr;
lr_com_shpadr t_com_shpadr;
lr_orchid_shpadr t_orchid_shpadr;
lr_com_shpdtl t_com_shpdtl;
lr_orchid_shpdtl t_orchid_shpdtl;
-- variable declaration
ln_shphdr_seq NUMBER(10):= 0;
ln_shpadr_seg NUMBER(10):= 0;
ln_shpdtl_seq NUMBER(10):= 0;
cnt NUMBER(10):= 0;
cnt1 NUMBER(10):= 0;
ld_hdr_dwn_end_dt download_batch_info.download_end_tstamp%TYPE;
lc_hdr_dwn_status download_batch_info.dwn_status%TYPE;
ld_hdr_download_end_tstamp DATE;
ln_hdr_running_seq NUMBER(10) := 0;
ld_adr_dwn_end_dt download_batch_info.download_end_tstamp%TYPE;
lc_adr_dwn_status download_batch_info.dwn_status%TYPE;
ld_adr_download_end_tstamp DATE;
ln_adr_running_seg NUMBER(10) := 0;
ld_dtl_dwn_end_dt download_batch_info.download_end_tstamp%TYPE;
lc_dtl_dwn_status download_batch_info.dwn_status%TYPE;
ld_dtl_download_end_tstamp DATE;
ln_dtl_running_seq NUMBER(10) := 0;
BEGIN
-- get the batch control number details from batch information table for shipment header
BEGIN
SELECT batch_ctrl_no
, NVL(download_end_tstamp,TO_DATE('01/01/1980','MM/DD/YYYY'))
, dwn_status
INTO lv_hdr_batch_ctrl_no
, ld_hdr_dwn_end_dt
, lc_hdr_dwn_status
FROM comoes.download_batch_info
WHERE download_id = 'ORCHID_SHIPMENT_HDR_INTF';
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT.PUT_LINE (' No Data Found for ORCHID_SHIPMENT_HDR_INTF in Download Batch Info table...!!!');
RAISE;
WHEN TOO_MANY_ROWS THEN
DBMS_OUTPUT.PUT_LINE (' Too Many Rows found for ORCHID_SHIPMENT_HDR_INTF in Download Batch Info table...!!!');
RAISE;
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE (' Following error occured while getting batch control number for ORCHID_SHIPMENT_HDR_INTF in Download Batch Info table...!!!'||SQLERRM);
RAISE;
END;
-- get the batch control number details from batch information table for shipment address
BEGIN
SELECT batch_ctrl_no
, NVL(download_end_tstamp,TO_DATE('01/01/1980','MM/DD/YYYY'))
, dwn_status
INTO lv_adr_batch_ctrl_no
, ld_adr_dwn_end_dt
, lc_adr_dwn_status
FROM comoes.download_batch_info
WHERE download_id = 'ORCHID_SHIPMENT_ADDRESS_INTF';
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT.PUT_LINE (' No Data Found for ORCHID_SHIPMENT_ADDRESS_INTF in Download Batch Info table...!!!');
RAISE;
WHEN TOO_MANY_ROWS THEN
DBMS_OUTPUT.PUT_LINE (' Too Many Rows found for ORCHID_SHIPMENT_ADDRESS_INTF in Download Batch Info table...!!!');
RAISE;
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE (' Following error occured while getting batch control number for ORCHID_SHIPMENT_ADDRESS_INTF in Download Batch Info table...!!!'||SQLERRM);
RAISE;
END;
-- get the batch control number details from batch information table for shipment details
BEGIN
SELECT batch_ctrl_no
, NVL(download_end_tstamp,TO_DATE('01/01/1980','MM/DD/YYYY'))
, dwn_status
INTO lv_dtl_batch_ctrl_no
, ld_dtl_dwn_end_dt
, lc_dtl_dwn_status
FROM download_batch_info
WHERE download_id = 'ORCHID_SHIPMENT_DTL_INTF';
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT.PUT_LINE (' No Data Found for ORCHID_SHIPMENT_DTL_INTF in Download Batch Info table...!!!');
RAISE;
WHEN TOO_MANY_ROWS THEN
DBMS_OUTPUT.PUT_LINE (' Too Many Rows found for ORCHID_SHIPMENT_DTL_INTF in Download Batch Info table...!!!');
RAISE;
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE (' Following error occured while getting batch control number for ORCHID_SHIPMENT_DTL_INTF in Download Batch Info table...!!!'||SQLERRM);
RAISE;
END;
-- if previous run is not sucess then do nothing and return.
OPEN c_com_shphdr ( ld_hdr_dwn_end_dt ) ;
LOOP
-- delete the collection for every cycle
lr_com_shphdr.DELETE;
lr_orchid_shphdr.DELETE;
lr_com_shpadr.DELETE;
lr_orchid_shpadr.DELETE;
lr_com_shpdtl.DELETE;
lr_orchid_shpdtl.DELETE;
-- fetch the order header records to collection
FETCH c_com_shphdr BULK COLLECT INTO lr_com_shphdr LIMIT 500;
-- where there is no record in the collection the exit from the loop
EXIT WHEN lr_com_shphdr.COUNT = 0;
-- build your logic there to populate the data into order header collection.
FOR i IN 1..lr_com_shphdr.COUNT
LOOP
-- accumulate header running sequence number
ln_hdr_running_seq := ln_hdr_running_seq + 1;
ln_shphdr_seq := ln_hdr_running_seq;
-- Get the business unit for the customer from com_customer
BEGIN
SELECT business_unit
INTO lv_company_code
FROM com_customer@com_pricing.world
WHERE custno = lr_com_shphdr(i).del_custno;
EXCEPTION
WHEN OTHERS THEN
lv_company_code := NULL;
END;
-- Get the ordno, confirm_date from COM_PLLINE
BEGIN
SELECT ordno
, confirm_date
INTO lv_erp_ord_no
, lv_actual_ship_date
FROM com_plline@com_pricing.world cpl
WHERE cpl.plheadno = lr_com_shphdr(i).plheadno
AND ROWNUM = 1;
EXCEPTION
WHEN OTHERS THEN
lv_erp_ord_no := NULL;
lv_actual_ship_date := NULL;
END;
-- Get the po_no, Entry_date from COM_OLINE
BEGIN
SELECT po_no
, entrydate
INTO lv_po_no
, lv_ord_date
FROM com_oline@com_pricing.world col
WHERE col.ordno = lv_erp_ord_no
AND ROWNUM = 1;
EXCEPTION
WHEN OTHERS THEN
lv_po_no := NULL;
lv_ord_date := NULL;
END;
-- To assign the Bol Number from Lading Number
IF lr_com_shphdr(i).carr_no NOT IN ('FEDX','UPS') THEN
lr_orchid_shphdr(i).bol_no := lr_com_shphdr(i).lading_no;
ELSE
lr_orchid_shphdr(i).bol_no := NULL;
END IF;
-- For each order header get the Shipment Delivery Adderss
OPEN c_com_shpadr ( lr_com_shphdr(i).custaddr);
FETCH c_com_shpadr BULK COLLECT INTO lr_com_shpadr;
-- where there is no record in the collection the exit from the loop
EXIT WHEN lr_com_shpadr.COUNT = 0;
-- biuld your logic here to populate the del address collection.
FOR j IN 1..lr_com_shpadr.COUNT
LOOP
-- accumulate the loop count into temp variable, so that will through tell each set of order header.
cnt := cnt + 1;
-- accumolate the header running sequence number.
ln_adr_running_seg := ln_adr_running_seg + 1;
ln_shpadr_seg := ln_adr_running_seg;
-- move the order address data into collection.
lr_orchid_shpadr(cnt).client_id := lr_com_shphdr(i).del_custno;
lr_orchid_shpadr(cnt).ord_no := lr_com_shphdr(i).plheadno;
lr_orchid_shpadr(cnt).tracking_no := lr_com_shphdr(i).tracking_no;
lr_orchid_shpadr(cnt).addr_name := lr_com_shpadr(j).addr_name;
lr_orchid_shpadr(cnt).attn_line := lr_com_shphdr(i).attn_line;
lr_orchid_shpadr(cnt).addr_line1 := lr_com_shpadr(j).addr_line1;
lr_orchid_shpadr(cnt).addr_line2 := lr_com_shpadr(j).addr_line2;
lr_orchid_shpadr(cnt).addr_line3 := NULL;
lr_orchid_shpadr(cnt).addr_line4 := NULL;
lr_orchid_shpadr(cnt).addr_line5 := NULL;
lr_orchid_shpadr(cnt).city := lr_com_shpadr(j).city;
lr_orchid_shpadr(cnt).state_cd := lr_com_shpadr(j).state_cd;
lr_orchid_shpadr(cnt).zip := lr_com_shpadr(j).zip;
lr_orchid_shpadr(cnt).zip_ext := NULL;
lr_orchid_shpadr(cnt).country_cd := lr_com_shpadr(j).country_cd;
lr_orchid_shpadr(cnt).tax_geo_cd := NULL;
lr_orchid_shpadr(cnt).work_phone := lr_com_shpadr(j).work_phone;
lr_orchid_shpadr(cnt).email1 := lr_com_shpadr(j).email1;
lr_orchid_shpadr(cnt).cre_dat := SYSDATE;
lr_orchid_shpadr(cnt).cre_usr := USER;
lr_orchid_shpadr(cnt).batch_ctrl_no := lv_adr_batch_ctrl_no;
END LOOP;
CLOSE c_com_shpadr;
-- For each order header get the order detail/delivery segment data
OPEN c_com_shpdtl ( lr_com_shphdr(i).plheadno );
FETCH c_com_shpdtl BULK COLLECT INTO lr_com_shpdtl;
-- where there is no record in the collection the exit from the loop
EXIT WHEN lr_com_shpdtl.COUNT = 0;
-- build your logic here to populate the order detail collection
FOR k IN 1..lr_com_shpdtl.COUNT
LOOP
-- accumulate the loop count into a temp variable, so that will through till each set of Order Header.
cnt1 := cnt1 + 1;
-- accumulate header running sequence number
ln_dtl_running_seq := ln_dtl_running_seq + 1;
ln_shpdtl_seq := ln_dtl_running_seq;
-- Get Quantity for the delvery from delevery segment table.
BEGIN
SELECT NVL(Qty,0)
INTO lv_ord_qty
FROM com_oldelseg@com_pricing.world cds
WHERE cds.ordno = lr_com_shpdtl(k).erp_ord_no
AND cds.ol_no = lr_com_shpdtl(k).erp_line_no
AND cds.ol_segno = lr_com_shpdtl(k).ol_segno;
EXCEPTION
WHEN OTHERS THEN
lv_ord_qty := NULL;
END;
-- Get Title for the salesitem from the salesitem table.
BEGIN
SELECT Title
INTO lv_sku_desc
FROM com_salesitem@com_pricing.world cs
WHERE cs.fg_id = lr_com_shpdtl(k).sku;
EXCEPTION
WHEN OTHERS THEN
lv_sku_desc := NULL;
END;
-- move the Order detail data into collection
lr_orchid_shpdtl(cnt1).client_id := lr_com_shphdr(i).client_id;
lr_orchid_shpdtl(cnt1).ord_no := lr_com_shphdr(i).plheadno;
lr_orchid_shpdtl(cnt1).ord_line_no := lr_com_shpdtl(k).ord_line_no;
lr_orchid_shpdtl(cnt1).erp_line_no := lr_com_shpdtl(k).erp_line_no;
lr_orchid_shpdtl(cnt1).sku := lr_com_shpdtl(k).sku;
lr_orchid_shpdtl(cnt1).tracking_no := lr_com_shphdr(i).tracking_no;
lr_orchid_shpdtl(cnt1).container_no := NULL;
lr_orchid_shpdtl(cnt1).ord_qty := lv_ord_qty;
lr_orchid_shpdtl(cnt1).ship_qty := lr_com_shpdtl(k).ship_qty;
lr_orchid_shpdtl(cnt1).price_point := NULL;
lr_orchid_shpdtl(cnt1).pick_invoice_no := NULL;
lr_orchid_shpdtl(cnt1).cancel_qty := NULL;
lr_orchid_shpdtl(cnt1).bldg_id := NULL; --lr_com_shpdtl(k).bldg_id;
lr_orchid_shpdtl(cnt1).sku_company := NULL; --lr_com_shpdtl(k).sku_company;
lr_orchid_shpdtl(cnt1).sku_desc := lv_sku_desc;
lr_orchid_shpdtl(cnt1).icc_cd1 := NULL; --lr_com_shpdtl(k).icc_cd1;
lr_orchid_shpdtl(cnt1).erp_ord_no := lr_com_shpdtl(k).erp_ord_no;
lr_orchid_shpdtl(cnt1).cre_dat := SYSDATE;
lr_orchid_shpdtl(cnt1).cre_usr := USER;
lr_orchid_shpdtl(cnt1).batch_ctrl_no := lv_dtl_batch_ctrl_no;
END LOOP;
CLOSE c_com_shpdtl;
-- build the logic to populate Order Header
lr_orchid_shphdr(i).client_id := lr_com_shphdr(i).client_id;
lr_orchid_shphdr(i).ord_no := lr_com_shphdr(i).plheadno;
lr_orchid_shphdr(i).tracking_no := lr_com_shphdr(i).tracking_no;
lr_orchid_shphdr(i).container_no := NULL; -- container number is not maintained in COM
lr_orchid_shphdr(i).carrier_id := lr_com_shphdr(i).carrier_id;
lr_orchid_shphdr(i).plant_id := lr_com_shphdr(i).plant_id;
lr_orchid_shphdr(i).erp_ord_no := lv_erp_ord_no;
lr_orchid_shphdr(i).erp_ord_no2 := NULL;
lr_orchid_shphdr(i).po_no := lv_po_no;
lr_orchid_shphdr(i).ship_to_id := lr_com_shphdr(i).ship_to_id;
lr_orchid_shphdr(i).ship_to_addr_id := lr_com_shphdr(i).custaddr;
lr_orchid_shphdr(i).scac := NULL; --lr_com_shphdr(i).scac;
lr_orchid_shphdr(i).actual_ship_date := lv_actual_ship_date;
lr_orchid_shphdr(i).cfm_order_type := lr_com_shphdr(i).cfm_order_type;
lr_orchid_shphdr(i).company_code := lv_company_code;
lr_orchid_shphdr(i).no_of_order_lines := NULL; --lr_com_shphdr(i).no_of_order_lines;
lr_orchid_shphdr(i).pick_invoice_no := NULL;
lr_orchid_shphdr(i).ord_date := lv_ord_date;
lr_orchid_shphdr(i).orig_tender_date := NULL;
lr_orchid_shphdr(i).orig_delv_date := NULL;
lr_orchid_shphdr(i).delivery_flag := NULL;
lr_orchid_shphdr(i).delv_date_from := NULL;
lr_orchid_shphdr(i).delv_date_to := NULL;
lr_orchid_shphdr(i).orig_carr_cd := NULL;
lr_orchid_shphdr(i).routing_comment := NULL;
lr_orchid_shphdr(i).segment_type := NULL;
lr_orchid_shphdr(i).back_order_flag := NULL;
lr_orchid_shphdr(i).addr_override_flag := NULL;
lr_orchid_shphdr(i).fmx_assigned_carr := NULL;
lr_orchid_shphdr(i).fmx_assigned_ship_date := NULL;
lr_orchid_shphdr(i).fmx_assigned_delv_date := NULL;
lr_orchid_shphdr(i).freight_terms := lr_com_shphdr(i).freight_terms;
lr_orchid_shphdr(i).fmx_load_id := NULL;
lr_orchid_shphdr(i).asn_type := NULL;
lr_orchid_shphdr(i).icc_cd1 := NULL; --lr_com_shphdr(i).icc_cd1;
lr_orchid_shphdr(i).trans_type := NULL;
lr_orchid_shphdr(i).ref_no1 := NULL;
lr_orchid_shphdr(i).ref_no2 := NULL;
lr_orchid_shphdr(i).ref_no3 := NULL;
lr_orchid_shphdr(i).ref_no4 := NULL;
lr_orchid_shphdr(i).cre_dat := SYSDATE;
lr_orchid_shphdr(i).cre_usr := USER;
lr_orchid_shphdr(i).batch_ctrl_no := lv_hdr_batch_ctrl_no;
-- logic to get total boxes and weight.
BEGIN
SELECT SUM(no_cartons), SUM(weight)
INTO lr_orchid_shphdr(i).total_boxes
, lr_orchid_shphdr(i).weight
FROM com_plline@com_pricing.world pll
WHERE pll.plheadno = lr_com_shphdr(i).plheadno;
EXCEPTION
WHEN OTHERS THEN
lr_orchid_shphdr(i).total_boxes := NULL;
lr_orchid_shphdr(i).weight := NULL;
END;
END LOOP;
-- initialize the variables for next loop cycle.
cnt := 0;
cnt1 := 0;
-- populate the shipment header interface table.
FOR x IN 1..lr_orchid_shphdr.COUNT
LOOP
ld_hdr_download_end_tstamp := lr_orchid_shphdr(x).cre_dat;
INSERT INTO orchid_shipment_hdr_intf
(record_qualifier
,client_id
,ord_no
,tracking_no
,container_no
,bol_no
,carrier_id
,plant_id
,erp_ord_no
,erp_ord_no2
,po_no
,ship_to_id
,ship_to_addr_id
,scac
,actual_ship_date
,cfm_order_type
,company_code
,no_of_order_lines
,pick_invoice_no
,total_boxes
,weight
,ord_date
,orig_tender_date
,orig_delv_date
,delivery_flag
,delv_date_from
,delv_date_to
,orig_carr_cd
,routing_comment
,segment_type
,back_order_flag
,addr_override_flag
,fmx_assigned_carr
,fmx_assigned_ship_date
,fmx_assigned_delv_date
,freight_terms
,fmx_load_id
,asn_type
,upl_status
,icc_cd1
,trans_type
,ref_no1
,ref_no2
,ref_no3
,ref_no4
,cre_dat
,cre_usr
,batch_ctrl_no)
VALUES
( 10
,lr_orchid_shphdr(x).client_id
,lr_orchid_shphdr(x).ord_no
,lr_orchid_shphdr(x).tracking_no
,lr_orchid_shphdr(x).container_no
,lr_orchid_shphdr(x).bol_no
,lr_orchid_shphdr(x).carrier_id
,lr_orchid_shphdr(x).plant_id
,lr_orchid_shphdr(x).erp_ord_no
,lr_orchid_shphdr(x).erp_ord_no2
,lr_orchid_shphdr(x).po_no
,lr_orchid_shphdr(x).ship_to_id
,lr_orchid_shphdr(x).ship_to_addr_id
,lr_orchid_shphdr(x).scac
,lr_orchid_shphdr(x).actual_ship_date
,lr_orchid_shphdr(x).cfm_order_type
,lr_orchid_shphdr(x).company_code
,lr_orchid_shphdr(x).no_of_order_lines
,lr_orchid_shphdr(x).pick_invoice_no
,lr_orchid_shphdr(x).total_boxes
,lr_orchid_shphdr(x).weight
,lr_orchid_shphdr(x).ord_date
,lr_orchid_shphdr(x).orig_tender_date
,lr_orchid_shphdr(x).orig_delv_date
,lr_orchid_shphdr(x).delivery_flag
,lr_orchid_shphdr(x).delv_date_from
,lr_orchid_shphdr(x).delv_date_to
,lr_orchid_shphdr(x).orig_carr_cd
,lr_orchid_shphdr(x).routing_comment
,lr_orchid_shphdr(x).segment_type
,lr_orchid_shphdr(x).back_order_flag
,lr_orchid_shphdr(x).addr_override_flag
,lr_orchid_shphdr(x).fmx_assigned_carr
,lr_orchid_shphdr(x).fmx_assigned_ship_date
,lr_orchid_shphdr(x).fmx_assigned_delv_date
,lr_orchid_shphdr(x).freight_terms
,lr_orchid_shphdr(x).fmx_load_id
,lr_orchid_shphdr(x).asn_type
,00
,lr_orchid_shphdr(x).icc_cd1
,lr_orchid_shphdr(x).trans_type
,lr_orchid_shphdr(x).ref_no1
,lr_orchid_shphdr(x).ref_no2
,lr_orchid_shphdr(x).ref_no3
,lr_orchid_shphdr(x).ref_no4
,lr_orchid_shphdr(x).cre_dat
,lr_orchid_shphdr(x).cre_usr
,lr_orchid_shphdr(x).batch_ctrl_no);
END LOOP;
-- populate the shipment address interface table.
FOR y IN 1..lr_orchid_shpadr.COUNT
LOOP
ld_adr_download_end_tstamp := lr_orchid_shpadr(y).cre_dat;
INSERT INTO orchid_shipment_address_intf
( record_qualifier
, client_id
, ord_no
, tracking_no
, addr_name
, attn_line
, addr_line1
, addr_line2
, addr_line3
, addr_line4
, addr_line5
, city
, state_cd
, zip
, zip_ext
, country_cd
, tax_geo_cd
, work_phone
, email1
, cre_dat
, cre_usr
, batch_ctrl_no)
VALUES ( 14
, lr_orchid_shpadr(y).client_id
, lr_orchid_shpadr(y).ord_no
, lr_orchid_shpadr(y).tracking_no
, lr_orchid_shpadr(y).addr_name
, lr_orchid_shpadr(y).attn_line
, lr_orchid_shpadr(y).addr_line1
, lr_orchid_shpadr(y).addr_line2
, lr_orchid_shpadr(y).addr_line3
, lr_orchid_shpadr(y).addr_line4
, lr_orchid_shpadr(y).addr_line5
, lr_orchid_shpadr(y).city
, lr_orchid_shpadr(y).state_cd
, lr_orchid_shpadr(y).zip
, lr_orchid_shpadr(y).zip_ext
, lr_orchid_shpadr(y).country_cd
, lr_orchid_shpadr(y).tax_geo_cd
, lr_orchid_shpadr(y).work_phone
, lr_orchid_shpadr(y).email1
, lr_orchid_shpadr(y).cre_dat
, lr_orchid_shpadr(y).cre_usr
, lr_orchid_shpadr(y).batch_ctrl_no);
END LOOP;
-- populate the shipment detail interface table.
FOR z IN 1..lr_orchid_shpdtl.COUNT
LOOP
ld_dtl_download_end_tstamp := lr_orchid_shpdtl(z).cre_dat;
INSERT INTO orchid_shipment_dtl_intf
( record_qualifier
, client_id
, ord_no
, ord_line_no
, erp_line_no
, sku
, tracking_no
, container_no
, ord_qty
, ship_qty
, price_point
, pick_invoice_no
, cancel_qty
, bldg_id
, sku_company
, sku_desc
, icc_cd1
, erp_ord_no
, cre_dat
, cre_usr
, batch_ctrl_no)
VALUES ( 20
, lr_orchid_shpdtl(z).client_id
, lr_orchid_shpdtl(z).ord_no
, lr_orchid_shpdtl(z).ord_line_no
, lr_orchid_shpdtl(z).erp_line_no
, lr_orchid_shpdtl(z).sku
, lr_orchid_shpdtl(z).tracking_no
, lr_orchid_shpdtl(z).container_no
, lr_orchid_shpdtl(z).ord_qty
, lr_orchid_shpdtl(z).ship_qty
, lr_orchid_shpdtl(z).price_point
, lr_orchid_shpdtl(z).pick_invoice_no
, lr_orchid_shpdtl(z).cancel_qty
, lr_orchid_shpdtl(z).bldg_id
, lr_orchid_shpdtl(z).sku_company
, lr_orchid_shpdtl(z).sku_desc
, lr_orchid_shpdtl(z).icc_cd1
, lr_orchid_shpdtl(z).erp_ord_no
, lr_orchid_shpdtl(z).cre_dat
, lr_orchid_shpdtl(z).cre_usr
, lr_orchid_shpdtl(z).batch_ctrl_no);
END LOOP;
COMMIT;
END LOOP;
CLOSE c_com_shphdr;
-- set the status to success
UPDATE comoes.download_batch_info
SET batch_ctrl_no = orchid_plhead_btch_ctrl_seq.NEXTVAL
, dwn_status = '90'
, download_end_tstamp = NVL(ld_hdr_download_end_tstamp,SYSDATE)
WHERE download_id = 'ORCHID_SHIPMENT_HDR_INTF'
AND batch_ctrl_no = lv_hdr_batch_ctrl_no;
UPDATE comoes.download_batch_info
SET batch_ctrl_no = orchid_address_btch_ctrl_seq.NEXTVAL
, dwn_status = '90'
, download_end_tstamp = NVL(ld_hdr_download_end_tstamp,SYSDATE)
WHERE download_id = 'ORCHID_SHIPMENT_ADDRESS_INTF'
AND batch_ctrl_no = lv_adr_batch_ctrl_no;
UPDATE comoes.download_batch_info
SET batch_ctrl_no = orchid_plline_btch_ctrl_seq.NEXTVAL
, dwn_status = '90'
, download_end_tstamp = NVL(ld_dtl_download_end_tstamp,SYSDATE)
WHERE download_id = 'ORCHID_SHIPMENT_DTL_INTF'
AND batch_ctrl_no = lv_dtl_batch_ctrl_no;
-- Update the download status to success in the interface table.
-- Shipment Header
COMMIT;
EXCEPTION
WHEN OTHERS THEN
-- load is not sucess then set the status to fail
UPDATE comoes.download_batch_info
SET dwn_status = '99'
WHERE download_id = 'ORCHID_SHIPMENT_HDR_INTF'
AND batch_ctrl_no = lv_hdr_batch_ctrl_no;
UPDATE comoes.download_batch_info
SET dwn_status = '99'
WHERE download_id = 'ORCHID_SHIPMENT_ADDRESS_INTF'
AND batch_ctrl_no = lv_adr_batch_ctrl_no;
UPDATE comoes.download_batch_info
SET dwn_status = '99'
WHERE download_id = 'ORCHID_SHIPMENT_DTL_INTF'
AND batch_ctrl_no = lv_dtl_batch_ctrl_no;
COMMIT;
DBMS_OUTPUT.PUT_LINE('Following error occured while executing ORCHID_SHIPMENT_INTF procedure...!!!'||SQLERRM);
RAISE;
END orchid_shipment_interface;Edited by: BluShadow on 03-Aug-2011 13:28
added {noformat}{noformat} tags. Please read {message:id=9360002} to learn to do this yourself. &nbPlease read the Forum FAQ on how to ask a question, particularly how to format code
SQL and PL/SQL FAQ
SQL and PL/SQL FAQ
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE (' Following error occured while getting batch control number for ORCHID_SHIPMENT_HDR_INTF in Download Batch Info table...!!!'||SQLERRM);
RAISE;http://tkyte.blogspot.com/2008/01/why-do-people-do-this.html -
Re: Raising Exceptions Vs returning erro[Ref:C809787]
Hi Steve !
Probably the following explanation might help in resolving the issue raised by
you:
At a more abstract level, there is only one thing, i.e. the EVENT. According to
it's definition, an event is a relatively infrequent occurrence in one portion (lets
call it event raiser) of the application, which some other portion (or portions,
lets call them event handlers) (of the same application) are interested to respond
to it. Now there are two scenarios:
(A) Event raiser and Event handler(s) are being executed under different threads
of control (Asynchronous) and
(B) Event raiser and Event Handler(s) are being executed under same thread of
control (Synchronous).
So, Exception Handling belongs to scenario B where the method raising the
exception (Event Raiser or exception raiser) and the method handling it (Event
Handler or exception block) are under the same thread of control. More ever it has
to be insured that at a time only one handler (first the inner most one) receives
the message.
Forté provides a generic Event handling mechanism (Post Event and Event Loop) to
handle the scenario A (which is the more generic one). But it also provides a
specialized Event Handling mechanism (Raise Exception and Exception block) to
efficiently handle the relatively simple scenario B. Why I am saying that the later
is efficient because it won't be needing to register the event queue address of the
interested task (after all there is only one task involved) and put the event
message in queue.
Finally let me mentioned that it is just my view based on the understanding I
have and it may not be true. Only a person from forté can confirm it. I will really
appreciate if somebody correct and or refine it.
Wish a Very Very Happy New Year to all Forté Users
Regard,
Kailash.
[email protected] wrote:
I would agree with Eric entirely. Exceptions seem to me to be a much more
complete solution to the problem of error handling. A little bit of effort up
front in making clear the strategy for exception handling and specifying the
exceptions that can be raised by a class\method will provide an excellent method
for error handling.
In the case of ensuring exceptions are always handled, a top level handler for
GenericException will usually do the job, allowing you to write error
information out to logs, screen, etc, and then shut down gracefully.
The only issue I would raise with exceptions is that they are not propagated
outside an asynchronous task. If an exception is not handled within an
asynchronous, it will not propagate to the task that started that asynchronous
task. Forte provides return and exception events when starting asynchronous
tasks to cope with this, but it seems a shame to have one method of dealing with
errors (exceptions) for synchronous behaviour, and another (events) for
asynchronous behaviour.
Steve Elvin
Systems Developer
Frontline Ltd.
UK
Mark,
The problem with return codes is that there is an underlying assumption
that the receiver will always catch and interpret that error code. This
may or may not be good thing, depending on how you architect your
application. If, on the other hand, you want to ensure that an error is
always handled, if not by the receiver then by the Forte, Exceptions are
the way to go. To extend this mechanism further, I would subclass
GenericException and created my own error code attribute on that
subclass. That way the receiver has the choice of interpreting the
exception based on that error code, and wrapping it in a
MessageDialog/window or do the usual 'errormgr.showerrors()'.
Exceptions seem a more flexible approach to me. That is, if you can live
with the fact that by using it, you're violating the 'exceptions for
behavioral anomalies' software engineering principle !
Best wishes.
Eric Pereira
Forte Consultant
----Original Message Follows----
From: "Kallambella, Ajith" <[email protected]>
To: "'Mark Sundsten'" <[email protected]>, [email protected]
Cc: [email protected]
Subject: RE: Raising Exceptions Vs returning error codes
Date: Wed, 30 Dec 1998 08:52:39 -0500
Reply-To: "Kallambella, Ajith" <[email protected]>
Mark,
Identifying conditions where you would rather use an exception
to an error_code ( and vice-versa ) normally depends on
your application design. Usually exceptions
are used to handle behavioral anomalies which are
not expected during the normal course of execution of
the program, and which would affect the continuity of
your algorithm if ignored. Examples would be a fatal
error, a semantically invalid( but syntactically-valid
token ) etc.
Error_codes and return status's can be used to handle
anticipated and recoverable errors. Example would
be presentation layer validations. In any normal
UI system, the user is expected to make errors and it
would be annoying to throw an exception( and to handle
it ), every time user enters wrong data. A well
modeled client layer should not only handle
data-validation errors , but should be smart enough
to encourage users to input correct or
"near-correct" data. Examples could be
making use of look-up windows etc. Interestingly,
Express uses exceptions to handle data-validations.
As you see, exceptions fit well into your processing
logic where severity of damage caused by an error
is more. Where as error_codes fit well into presentation
logic( and some not-so-critical processing logic ) where
errors are usually recoverable and normal path of
execution can be easily restored.
Hope this helps. I would be very interested to hear
what others have to say.
Ajith Kallambella. M
Forte Systems Engineer,
International Business Corporation.
-----Original Message-----
From: Mark Sundsten [mailto:[email protected]]
Sent: Tuesday, December 29, 1998 2:10 PM
To: [email protected]
Cc: [email protected]
Subject: Raising Exceptions vs returning error codes
When dealing with error handling, I find myself struggling with the
choice
of
raising exceptions (and handling them) from the caller
vs returning an error code of somekind.
When would you want to use one over the other?
Should you always use exception handling?
Any discussion would be appreciated.
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
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To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>-
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>Hi Steve !
Probably the following explanation might help in resolving the issue raised by
you:
At a more abstract level, there is only one thing, i.e. the EVENT. According to
it's definition, an event is a relatively infrequent occurrence in one portion (lets
call it event raiser) of the application, which some other portion (or portions,
lets call them event handlers) (of the same application) are interested to respond
to it. Now there are two scenarios:
(A) Event raiser and Event handler(s) are being executed under different threads
of control (Asynchronous) and
(B) Event raiser and Event Handler(s) are being executed under same thread of
control (Synchronous).
So, Exception Handling belongs to scenario B where the method raising the
exception (Event Raiser or exception raiser) and the method handling it (Event
Handler or exception block) are under the same thread of control. More ever it has
to be insured that at a time only one handler (first the inner most one) receives
the message.
Forté provides a generic Event handling mechanism (Post Event and Event Loop) to
handle the scenario A (which is the more generic one). But it also provides a
specialized Event Handling mechanism (Raise Exception and Exception block) to
efficiently handle the relatively simple scenario B. Why I am saying that the later
is efficient because it won't be needing to register the event queue address of the
interested task (after all there is only one task involved) and put the event
message in queue.
Finally let me mentioned that it is just my view based on the understanding I
have and it may not be true. Only a person from forté can confirm it. I will really
appreciate if somebody correct and or refine it.
Wish a Very Very Happy New Year to all Forté Users
Regard,
Kailash.
[email protected] wrote:
I would agree with Eric entirely. Exceptions seem to me to be a much more
complete solution to the problem of error handling. A little bit of effort up
front in making clear the strategy for exception handling and specifying the
exceptions that can be raised by a class\method will provide an excellent method
for error handling.
In the case of ensuring exceptions are always handled, a top level handler for
GenericException will usually do the job, allowing you to write error
information out to logs, screen, etc, and then shut down gracefully.
The only issue I would raise with exceptions is that they are not propagated
outside an asynchronous task. If an exception is not handled within an
asynchronous, it will not propagate to the task that started that asynchronous
task. Forte provides return and exception events when starting asynchronous
tasks to cope with this, but it seems a shame to have one method of dealing with
errors (exceptions) for synchronous behaviour, and another (events) for
asynchronous behaviour.
Steve Elvin
Systems Developer
Frontline Ltd.
UK
Mark,
The problem with return codes is that there is an underlying assumption
that the receiver will always catch and interpret that error code. This
may or may not be good thing, depending on how you architect your
application. If, on the other hand, you want to ensure that an error is
always handled, if not by the receiver then by the Forte, Exceptions are
the way to go. To extend this mechanism further, I would subclass
GenericException and created my own error code attribute on that
subclass. That way the receiver has the choice of interpreting the
exception based on that error code, and wrapping it in a
MessageDialog/window or do the usual 'errormgr.showerrors()'.
Exceptions seem a more flexible approach to me. That is, if you can live
with the fact that by using it, you're violating the 'exceptions for
behavioral anomalies' software engineering principle !
Best wishes.
Eric Pereira
Forte Consultant
----Original Message Follows----
From: "Kallambella, Ajith" <[email protected]>
To: "'Mark Sundsten'" <[email protected]>, [email protected]
Cc: [email protected]
Subject: RE: Raising Exceptions Vs returning error codes
Date: Wed, 30 Dec 1998 08:52:39 -0500
Reply-To: "Kallambella, Ajith" <[email protected]>
Mark,
Identifying conditions where you would rather use an exception
to an error_code ( and vice-versa ) normally depends on
your application design. Usually exceptions
are used to handle behavioral anomalies which are
not expected during the normal course of execution of
the program, and which would affect the continuity of
your algorithm if ignored. Examples would be a fatal
error, a semantically invalid( but syntactically-valid
token ) etc.
Error_codes and return status's can be used to handle
anticipated and recoverable errors. Example would
be presentation layer validations. In any normal
UI system, the user is expected to make errors and it
would be annoying to throw an exception( and to handle
it ), every time user enters wrong data. A well
modeled client layer should not only handle
data-validation errors , but should be smart enough
to encourage users to input correct or
"near-correct" data. Examples could be
making use of look-up windows etc. Interestingly,
Express uses exceptions to handle data-validations.
As you see, exceptions fit well into your processing
logic where severity of damage caused by an error
is more. Where as error_codes fit well into presentation
logic( and some not-so-critical processing logic ) where
errors are usually recoverable and normal path of
execution can be easily restored.
Hope this helps. I would be very interested to hear
what others have to say.
Ajith Kallambella. M
Forte Systems Engineer,
International Business Corporation.
-----Original Message-----
From: Mark Sundsten [mailto:[email protected]]
Sent: Tuesday, December 29, 1998 2:10 PM
To: [email protected]
Cc: [email protected]
Subject: Raising Exceptions vs returning error codes
When dealing with error handling, I find myself struggling with the
choice
of
raising exceptions (and handling them) from the caller
vs returning an error code of somekind.
When would you want to use one over the other?
Should you always use exception handling?
Any discussion would be appreciated.
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
Get Your Private, Free Email at http://www.hotmail.com
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>-
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/> -
Hi Friends
I have the following code:
declare
var1....
var2....
cursor c1
begin
insert stmt;
update stmt;
update stmt;
for r1 in c1 loop
end loop;
end;
I will be having about 6-7 million rows every month to process. To raise exceptions, I am thinking of either of the following options:
Option 1_
declare
var1....
var2....
var3 exception;
var4 exception;
var5 exception;
cursor c1
begin
insert stmt;
update stmt;
IF SQL%NOTFOUND then
var3;
end if;
update stmt;
IF SQL%NOTFOUND then
var4;
end if;
for r1 in c1 loop
end loop;
IF SQL%NOTFOUND then
var5;
end if;
Exception
when var3 then blah blah
when var4 then blah blah
when var5 then blah blah
end;
Option 2_
declare
var1....
var2....
cursor c1
begin
insert stmt;
update stmt;
update stmt;
for r1 in c1 loop
end loop;
Exception
when others then blah blah
end;
In terms of performance, which option is better? And is there any better option?
Thanks....In terms of performance, which option is better? And is there any better option?If you consider in terms of performance i think you cant find any difference in both ways.
But your both code does not do the same thing. They are entirely different. They are not the same.
For example, If your UPDATE statement fails with a Too many rows error what will happen.
In the first procedure the procedure will raise the error to the client. But in the second case the error is caught by the WHEN OTHERS block.
So now here the real thing is what you do in the WHEN OTHERS block. Do you suppress the error? Do you return NULL? What do you do, That is what matters.
Your Bla..Bla..Bla.. part in the EXCEPTION is very important. Most of them do mistake there.
WHEN OTHERS is a great feature. But it must be used properly. Its like a very sharp knife. If you dont use it properly there will be blood. -
Hi,
I have a cursor in my plsql and I am trying to get the record through a FOR loop. I know that for loop will take care of opening, fetching and closing the cursor implicitly.
Ex.
declare
cursor c1 is
select * from emp;
begin
for l_rec in c1 loop
end loop;
My question is i want to check whether the cursor in the for loop is returning any record or not using IF condition.
where and how i will find that?
Can anyone help how to do that.
Rds,
Nagwithout using boolean variables.Obvious question, WHY?
If you are so particular..
SQL> declare
2 cursor c1 is
3 select empno, ename, job
4 from emp
5 where empno = 7839123;
6 ex exception;
7 rec c1%rowtype;
8 begin
9 open c1;
10 fetch c1 into rec;
11 if c1%notfound then
12 raise ex;
13 end if;
14 loop
15 dbms_output.put_line(rec.empno||'-->'||rec.ename||'-->'||rec.job);
16 fetch c1 into rec;
17 exit when c1%notfound;
18 end loop;
19 exception
20 when ex then
21 dbms_output.put_line('cur not found');
22 end;
23 /
cur not found
PL/SQL procedure successfully completed. -
Hi,
I have a very simple problem, which I am almost embarrassed to ask, about numeric For Loop.
I am trying to retrieve the first 5 rows from a table with a few selected columns without using a defined cursor. Any suggestion? Thanks in advance.
AlanFirst, then post the other solution...
Personally, I would use...but they are really quite similar.
FOR i IN 1..10 LOOP
BEGIN
IF (i = 5) THEN
RAISE le_continue;
END IF;
common_func.display_output(i);
EXCEPTION
WHEN le_continue THEN
NULL;
END;
END LOOP;Thanks,
Jason
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