If then else in SQL

Similar Questions

• SQL syntax recordset IF THEN ELSE

  Here's what I'm trying to do: I am trying to display two different levels of content based on a user is profitable or not. for example, if the field xyz_paying = 'Yes' then select *, otherwise only display some fields, so I will try to use a mysql statement to create a SELECT query. I tried to do that IF, THEN, ELSE, but I'm getting syntax error messages. could someone show me a simple example please. or suggest a good resource. Thank you.

  I can't seem to get the sql to do what I want, so I changed gears and I use a conditional region to display only when my paid domain == works y. very well.

  I guess it's as good as force sql to do what you want. I'm now pulling all the data in the tables but it displays in a selective way.

• Help to fic my if-then-else logic in Forms 6i

  Hello world
  I have the following if-then-else in a when-validate-point called trigger where I'm trying to make it work the way I want to, but only works if I have 3 numeric values for each item. If put a letter in one of them, then I get the following error:
  FRM-40735: WHEN-VALIDATE-ITEM trigger raised unhandled exception ORA-06502.
  Can someone please help me fix my logic?

  Begin
  If (:BLOCK1.ITEM1 BETWEEN 0 AND 100) and (:BLOCK2.ITEM2 BETWEEN 0 AND 100) and (:BLOCK3.ITEM3 BETWEEN 0 AND 100) Then
  :BLOCK1.ITEM4 := (:BLOCK1.ITEM1*0.40) + (:BLOCK1.ITEM2*0.40) + (:BLOCK1.ITEM3*0.20);
  Elsif
  (:BLOCK1.ITEM1 IN ('F', 'P', 'NA')) and (:BLOCK1.ITEM2 BETWEEN 0 AND 100) and (:BLOCK1.ITEM3 BETWEEN 0 AND 100) Then
  :BLOCK1.ITEM4 := (:BLOCK1.ITEM2 + :BLOCK1.ITEM3)/2;
  Elsif
  (:BLOCK1.ITEM2 IN ('F', 'P', 'NA')) and (:BLOCK1.ITEM1 BETWEEN 0 AND 100) and (:BLOCK1.ITEM3 BETWEEN 0 AND 100) Then
  :BLOCK1.ITEM4 := (:BLOCK1.ITEM1 + :BLOCK1.ITEM3)/2;
  Elsif
  (:BLOCK1.ITEM1 IN ('F')) AND :BLOCK1.ITEM2 IN ('F')) AND (:BLOCK1.ITEM3 IN ('F')) Then
  :BLOCK1.ITEM4 := 'F';
  Elsif
  (:BLOCK1.ITEM1 IN ('P')) AND (:BLOCK1.ITEM2 IN ('P')) AND (:BLOCK1.ITEM3 IN ('P')) Then
  :BLOCK1.ITEM4 := 'P';
  Elsif
  (:BLOCK1.ITEM1 IN ('NA')) AND (:BLOCK1.ITEM2 IN ('NA')) AND (:BLOCK1.ITEM3 IN ('NA')) Then
  :BLOCK1.ITEM4 := 'NA';
  Else
  Null;
  End if;
  End;

  Published by: user626836 on September 28, 2011 08:42
  
  Published by: user626836 on September 28, 2011 08:54

  Yes, everywhere, wherever you want to see the numerical score or Alpha you will use this code. Depending on your version of the database of the stated CASE may not work, but all versions support DECODING.

  Craig...

  Published by: Silvere Sep 29, 2011 07:18

  I need to clarify... the DECODING is a SQL function. If you can't use it in SQL queries. You will get a compiler error if you try to use the DECODE function in PL/SQL.

• How to get if THEN ELSE another condition table

  Hi eveybody,.
  I have a situation and I need your advice guys.
  I apply if THEN ELSE condition in PL/SQL from another table. I do the merger in tableA that will run IF Column1 in tableC = Y.
  Ex: Tablec has three columns: source, dest, condition. Condition IF = Y in tableC, then merge into tableA use (Sql query in table C source selection) B.
  
  Please let me know how to get the condition = Y of table C.
  Condition IF = Y for each source in C, then fusion will happen for this source.
  
  Please provide your comments and your responses.
  I'd really appreciate your comments and your responses.
  Thank you very much.

  user13426784 wrote:
  DB link is passed as parameter in MS and we need to check the status for this link db to TableC.

  select   status
    into  v_status
    from  tableC
    where db_link = v_source;
  if v_status = 'Y'
    then
      EXECUTE IMMEDIATE 'MERGE INTO tableA A USING
  (select  from tableA@' || v_source || ')B
  when matched insert
  when not matched update';
  end if;
  

  SY.

• if-then-else logic

  Here's the test with values from the table and insert.

  
  

  create table students (
    name varchar2(25 BYTE),
    joined_date DATE,
    exam_type VARCHAR2(25 BYTE),
    SCORE NUMBER(2,1),
    CUT_OFF_DATE DATE
   );
  insert into students values('john','26-mar-14','SCREEN',7.6,'10-apr-14');
  insert into students values('john','10-Apr-14','RETEST',8.0,'10-apr-14');
  

  I try to return the single folder with the score of the same name of the student. I use CASES, but he really do not act as "IF-THEN-else" as the use of a control statement.

  
  

  select name,
    joined_date,
    case 
    ---something like IF statment if below[b] statement 1[/b] --is true then it
    --should return below statement
    when exam_type ='SCREEN' and score between 8.0 and 10.0
    then score
    ----[b]statement 2[/b] --if above expr fails, the below to be executed
    when exam_type ='RETEST' and score between 8.0 and 10.0
    and joined_date >= cut_off_date
    then score
    else null
    end result
  from students;
  

  output-

  Name	joined_date	Result
  John	26/03/14
  John	04/10/14	8

  
  

  in the game of results above, I need only the score of '8' and 'John' and the unique records only? like this, there are more then millions of records must be calculated.

  Please help me with logic

  
  

  Thank you
  

  Jason
  

  Well,.

  in this case, you will need to use something like ROW_NUMBER to keep only the "first" instance:

  SELECT name,

  joined_date,

  exam_type,

  score

  FROM (select s.*,

  ROW_NUMBER() over (partition by order of name of joined_date) rn

  s students

  where 1 = case when (exam_type = "SCREEN" and score between 8 and 10)

  or (exam_type = "RETEST" and the score between 8 and 10 and joined_date > = cut_off_date)

  then 1

  end

  )

  WHERE rn = 1;

• start end in if then else.

  Hello
  
  I've seen people to help
  
  If 1 = 1 then
  
  HOMELESS: = 9;
  
  on the other
  
  HOMELESS: = 10;
  
  end if;
  
  or
  
  
  If 1 = 1 then
  Start
  HOMELESS: = 9;
  end
  on the other
  Start
  HOMELESS: = 10;
  end;
  end if;
  
  (1) which is good. (good coding practices)
  (2) is it wrong by removing start end if then else.
  
  what I show begin end can be used for the management of exceptions, if it can be used for any other things please tel me.
  
  
  Yours sincerely

  944768 wrote:
  what I show begin end can be used for the management of exceptions, if it can be used for any other things please tel me.

  The previous poster gave you good links.

  In your example, I think that putting BEGIN/END in each IF/ELSE condition is rare and would not be useful, so I'd omit them.

  Nested BEGIN/END blocks can be useful If you want to:
  (a) put a label, or
  (b) DECLARE a variable that will be used only within that block, and/or
  (c) write a specific EXCEPTION handler.

  Since your example only none of that above, I don't see the use of these nested blocks. When something is useless, do not.

  P.S. If the goal is to write modular code, anonymous blocks can declare functions and procedures that can be called from the main block.

  set serveroutput on
  DECLARE
    PROCEDURE proc_inside(p_msg in varchar2) IS
      BEGIN
        dbms_output.put_line(
          'Message from procedure within an anonymous block: '||p_msg
        );
      END proc_inside;
  BEGIN
    proc_inside('Message A.');
    proc_inside('Message B.');
  END;
  /
  
  anonymous block completed
  Message from procedure within an anonymous block: Message A.
  Message from procedure within an anonymous block: Message B.
  

  Published by: Ashton stew on March 10, 2013 16:46

• How an action can test if (if-then-else) a symbol is visible?

  I have a symbol that can be hidden or display depends on a number of previous actions. I need a new action that tests the visibility of this symbol, so I can run a new action if-then-else. How this can be done? I speak not the pictures hidden behind others, just the actions/hide.

  Thank you. I'll work with it.

• Unable to minimization/maximization if-then-else block

  When you change a procedure, I lost the ability to minimization/maximization of a block if-then-else. How to bring back this feature? I'm using version 1.5.1 build HAND-5440.

  Have a look at tools > Preferences > Code Editor > display - he has a preference "Show Code folding margin. If this were put in judgment you don't get the code folding margin in the editor. However, if your code folding margin appears (preference is on) but doesn't give you any points trick, remember that there may be a noticeable delay between opening the code editor and the fold points scored - more code, it may be.

  Finally, there was a change at a given time (don't remember the version it was introduced) where the section of code to be folded must exceed three lines you can collapse it. For example, it won't give you an option to fold:

  if condition then
    single line of code;
  end if;
  

  but it will be:

  if condition then
    single line of code 1;
    single line of code 2;
  end if;
  

  theFurryOne

• Poor implementation of "box, when then else"?

  It seems to me that my expression < next > is executed even if < WHEN > is false. I have a queury with LISTAGG, and if there are too many people, the string exceeds the limit of 4000 characters. I tried to use "BOX WHEN" to give a message instead of the list of names, but I always get an error.
  
  I have reproduced this with the HR schema. (A simple example ;))
  
  This was my first expression:

  SELECT department_id
  ,LISTAGG('Employee_ID: '||EMPLOYEE_ID ||' Name: '||FIRST_NAME ||' '||LAST_NAME ||' Email: '||EMAIL||' Phone number: '||PHONE_NUMBER||'Hiredate: '||HIRE_DATE, ',') WITHIN GROUP (ORDER BY hire_date) AS Employees
  FROM employees e
  GROUP  BY department_id;

  throw this error:

  ORA-01489: resultatet av strengsammenkjeding er for langt
  01489. 00000 -  "result of string concatenation is too long"
  *Cause:    String concatenation result is more than the maximum size.
  *Action:   Make sure that the result is less than the maximum size.

  With this expression I do not exceed the limit of 4000 characters and the message "too many employees" are correctly displayed.

  SELECT department_id
  ,CASE WHEN ((select count(*) from employees where department_id=e.department_id) < 30)
  THEN (LISTAGG('Employee_ID: '||EMPLOYEE_ID ||' Name: '||FIRST_NAME ||' '||LAST_NAME ||' Email: '||EMAIL||' Phone number: '||PHONE_NUMBER, ',') WITHIN GROUP (ORDER BY hire_date))
  ELSE 'Too many employees'
  END AS Employees
  FROM employees e
  GROUP  BY department_id;

  For this Department 50 expression exceeds the limit of 4000 characters, and I get the above error. But the 50 Department has 45 employees and should not be the same in the part 'THEN'
  

  SELECT department_id
  ,CASE WHEN ((select count(*) from employees where department_id=e.department_id) < 30)
  THEN (LISTAGG('Employee_ID: '||EMPLOYEE_ID ||' Name: '||FIRST_NAME ||' '||LAST_NAME ||' Email: '||EMAIL||' Phone number: '||PHONE_NUMBER||'Hiredate: '||HIRE_DATE, ',') WITHIN GROUP (ORDER BY hire_date))
  ELSE 'Too many employees'
  END AS Employees
  FROM employees e
  GROUP  BY department_id;

  Oracle is a very silly implementation of ' BOX WHEN.. "or I do something wrong?
  
  I can solve this another way?
  
  Kind regards
  Thomas

  A way out could be

  SQL> SELECT department_id, SUBSTR (NVL (listagg (str, ',') WITHIN GROUP (ORDER BY hire_date), 'Too many employees'), 1, 20) || ' ... ' employee
      FROM (SELECT department_id,
                   hire_date,
                   CASE
                      WHEN COUNT (*) OVER (PARTITION BY department_id) <= 30
                      THEN
                            'Employee_ID: '
                         || employee_id
                         || ' Name: '
                         || first_name
                         || ' '
                         || last_name
                         || ' Email: '
                         || email
                         || ' Phone number: '
                         || phone_number
                         || 'Hiredate: '
                         || hire_date
                   END
                      str
              FROM employees e -- WHERE department_id != 50 OR department_id IS NULL
                              )
  GROUP BY department_id
  /
  DEPARTMENT_ID EMPLOYEE
  ------------- -------------------------
             10 Employee_ID: 200 Nam ...
             20 Employee_ID: 201 Nam ...
             30 Employee_ID: 114 Nam ...
             40 Employee_ID: 203 Nam ...
             50 Too many employees ...
             60 Employee_ID: 103 Nam ...
             70 Employee_ID: 204 Nam ...
             80 Too many employees ...
             90 Employee_ID: 100 Nam ...
            100 Employee_ID: 109 Nam ...
            110 Employee_ID: 205 Nam ...
                Employee_ID: 178 Nam ... 
  
  12 rows selected.
  

• simple if then else... wats wrong?

  What is wrong with the simple sql below? I am new to programming... and try to get the logic if then another ElseIf... am I suppose to put; at the first END IF;... when I did... it gives another strange error...
  

  DECLARE
  v_sql VARCHAR2(100);
  v_num number;
  BEGIN
  v_sql := 'SELECT 100 FROM DUAL';
  area := 20;
  EXECUTE IMMEDIATE v_sql INTO v_num;
  IF v_num > 100 THEN
    DBMS_OUTPUT.PUT_LINE('count is positive');
    IF area > 0 THEN
      DBMS_OUTPUT.PUT_LINE('count and area are positive');
    END IF
  ELSIF v_num = 0 THEN
    DBMS_OUTPUT.PUT_LINE('count is zero');
    ELSE
    DBMS_OUTPUT.PUT_LINE('count is negative');
  END IF;
  END;
  /

  Error on line 1
  ORA-06550: line 13, column 1:
  PLS-00103: encountered the symbol "ELSIF" when expecting one of the following conditions:
  
  ;

  Your report part contains no variable with the name box.

  Arun-

  PS: Use a different variable instead of the region, something like v_area.

• If then else

  Hi all

  I wrote the sub program...

  
  declare
  Spend_in_CR_Baby COMP (18.4).
  Spend_in_CR_Child COMP (18.4).
  Spend_in_CR_Home COMP (18.4).
  Spend_in_CR_Man COMP (18.4).
  Spend_in_CR_Woman COMP (18.4).
  v_CUST_KEY COMP (10,0);
  v_DIV_DESC varchar2 (30);
  v_sale_amt COMP (18.4).
  Start
  Select CUST_KEY, DIV_DESC, sale_amt bulk collect into v_CUST_KEY, v_DIV_DESC, v_sale_amt
  match where CUST_KEY = CUST_KEY;
  If (v_DIV_DESC = 'CR Baby') then Spend_in_CR_Baby: = v_sale_amt; end if;
  If (v_DIV_DESC = "Child CR") then Spend_in_CR_Child: = v_sale_amt;
  end if;
  If (v_DIV_DESC = 'CR Home') then Spend_in_CR_Home: = v_sale_amt;
  end if;
  If (v_DIV_DESC = 'CR Man') then Spend_in_CR_MAN: = v_sale_amt;
  end if;
  If (v_DIV_DESC = "CR woman") then Spend_in_CR_Woman: = v_sale_amt; end if;
  game update
  the CUST_KEY value = v_CUST_KEY
  where CUST_KEY = CUST_KEY;
  end;

  and here are the error messages: Please help

  Error report:

  ORA-06550: line 11, column 1:

  00497 PLS: do not mix between row and several rows (in BULK) list

  ORA-06550: line 11, column 1:

  00497 PLS: do not mix between row and several rows (in BULK) list

  ORA-06550: line 11, column 1:

  00497 PLS: do not mix between row and several rows (in BULK) list

  ORA-06550: line 11, column 88:

  PL/SQL: ORA-00904: invalid identifier

  ORA-06550: line 11, column 1:

  PL/SQL: SQL statement ignored

  06550 00000 - "line %s, column % s:\n%s".

  * Cause: Usually a PL/SQL compilation error.

  * Action:

  You are COLLECTING in BULK in Atomic variables (i.e. variables that can only contain a single value).  BULK COLLECTION requires that you query in collection types.

  However, what actually are you trying to achieve, because often there is no need (and it's often a bad habit) to collect data block in memory to treat it.  SQL is perfectly able to process data and to give back the results you want for example

  for example the following would summarize the amount of sales for each 'Department' (I guess they are departments)...

  declare

  Number of Spend_in_CR_Baby;

  Number of Spend_in_CR_Child;

  Number of Spend_in_CR_Home;

  Number of Spend_in_CR_Man;

  Number of Spend_in_CR_Woman;

  Start

  Select sum (case when div_desc = 'CR Baby' then sale_amt 0 otherwise end) as sum_baby

  , sum (case when div_desc = 'Child CR' then sale_amt 0 otherwise end) as sum_child

  , sum (case when div_desc = 'CR Home' then sale_amt 0 otherwise end) as sum_home

  , sum (case when div_desc = 'CR Man' then sale_amt 0 otherwise end) as sum_man

  , sum (case when div_desc = 'CR woman' then sale_amt 0 otherwise end) as sum_woman

  in Spend_in_CR_Baby

  Spend_in_CR_Child

  Spend_in_CR_Home

  Spend_in_CR_Man

  Spend_in_CR_Woman

  match

  where cust_key = v_cust_key;

  end;

  and the money is then returned in the variables in the code.

  Not quite sure that your update statement was trying to do, and there is no logic in your query or update to have "WHERE CUST_KEY = CUST_KEY" because it will always be true.  If one of those who is supposed to be a variable parameter or local procedure etc. so you must qualify properly by using the procedure name for example "WHERE CUST_KEY = procedure_name. CUST_KEY.

• If then else confusion.

  All,

  I created following procedure to sent emails in html format. Here, I make one request a condition, if the length of message_text is more then 5 then only, it should send emails, otherwise, I didn't need to send empty mails. I used, if so also later in the procedure to achieve this, but it seemed, something was not right here, and after execution of this fact, the output is "no error".

  CREATE OR REPLACE PROCEDURE mail_alert_log AS

  CURSOR C1 IS

  SELECT rownum, message_text,

  originating_timestamp of

  sys.x$ dbgalertext

  where originating_timestamp > sysdate-(15 /(24*60)) and message_text like "ORA-% ';

  l_body varchar2 (32767).

  B1 x$ dbgalertext % rowtype;

  BEGIN

  l_body: = '< TABLE BORDER is 1 BGCOLOR = "#EEEEEE" >';.

  l_body: = l_body | "< TR BGCOLOR ="BLACK"> ';

  l_body: = l_body | "< TH > < DO COLOR 'WHITE' = > Rownum < / DO > ';

  l_body: = l_body | "< TH > < DO COLOR 'WHITE' = > Message < / DO > ';

  l_body: = l_body | "< TH > < DO COLOR 'WHITE' = > Timestamp < / DO > ';

  l_body: = l_body | "< /TR > ';

  FOR rec in C1

  LOOP

  l_body: = l_body | "< b > ';

  l_body: = l_body | "< TD > ' | recomm. Rownum. "< Table > ';

  l_body: = l_body | "< TD > ' | Rec.message_text: '< table >';

  l_body: = l_body | "< TD > ' | Rec.originating_timestamp: '< table >';

  l_body: = l_body | "< /TR > ';

  END LOOP;

  l_body: = l_body | ' < /table > ';

  IF length (b1.message_text) > 5

  THEN

  UTL_MAIL. SEND)

  SENDER = > ' [email protected] ',

  Mime_type = > "text/html",

  RECIPIENTS = > ' [email protected] ',

  SUBJECT = > "Alert.log to PTMDEV11 errors."

  MESSAGE = > l_body);

  ON THE OTHER

  dbms_output.put_line ("' no error");

  END IF;

  END;

  /

  SQL > exec mail_alert_log

  No errors

  PL/SQL procedure successfully completed.

  SQL > SELECT rownum, message_text,

  Length (message_text) of

  sys.x$ dbgalertext

  where originating_timestamp > sysdate-(15 /(24*60)) and message_text like "ORA-% ';  2 3 4

  ROWNUM

  ----------

  MESSAGE_TEXT

  --------------------------------------------------------------------------------

  LENGTH (MESSAGE_TEXT)

  --------------------

  1

  ORA-1541 marked during: alter database datafile ' /db/ptmdev/data1/system01.db

  f' offline...

  95

  Concerning

  BTW, you can use sql Developer to format your code. It is seasier to read it.

  CREATE OR REPLACE PROCEDURE mail_alert_log

  AS

  CURSOR C1

  IS

  SELECT rownum,

  message_text,

  originating_timestamp

  OF sys.x$ dbgalertext

  WHERE originating_timestamp >-(15 /(24*60)) sysdate

  AND message_text LIKE "ORA-% ';

  l_body VARCHAR2 (32767).

  B1 x$ dbgalertext % rowtype;

  BEGIN

  l_body: ='

  ';

  l_body: = l_body | »

  ';

  l_body: = l_body | "

  ';

  B1.message_text: = ";

  FOR rec in C1

  LOOP

  l_body: = l_body | »

  ';

  l_body: = l_body | »

  ';

  l_body: = l_body | »

  ';

  Rownum '. l_body: = l_body | "	Message'; l_body: = l_body | "	Timestamp'; l_body: = l_body | »
  '|| recomm. Rownum. »	'|| Rec.message_text |'

  B1.message_text: = b1.message_text: rec.message_text;

  l_body: = l_body | »'|| Rec.originating_timestamp |'';

  l_body: = l_body | ";

  END LOOP;

  l_body: = l_body | ";

  ###

  IF LENGTH (b1.message_text) > 5 THEN

  UTL_MAIL. SEND (SENDER =>' [email protected]', MIME_TYPE-online "text/html","RECIPIENTS" =>' [email protected]', errors of SUBJECT-online 'Alert.log for PTMDEV11', MESSAGE-online l_body).

  ON THE OTHER

  dbms_output.put_line ("' no error");

  END IF;

  END;

  /

• JavaScript custom for If/Then/Else statement code

  Can someone help me understand this code. I have a field in a PDF file that I need to generate a discount based on the price of an item. If the price is higher than 5000, then I need the field to say 1500. Otherwise the field discount must be price *. 30.

  I tried, but it did not work: if price > 5000 then discount = discount 1500 = price*.3

  Someone at - it help?

  Thank you!

  Acrobat forms use JavaScript, so you need to use the JavaScirpt syntax for JavaScript syntax appropriate for the 'If... else' statement. You will also need to access the domain object as established by the Acrobat JavaScript object using the method "getField" of the doc, "this.getField (cName)" object, then the property "value" for this object.

  custom calculation script for the ' discount field

  establish the name of the price field

  var c = "price";

  get the value of the price field

  var nPrice = this.getField (c) .vallue;

  Assume that the discount is 30% of the price

  NPrice = Event.Value * 0,30;

  the value of reduction 1 500 if the price is higher to 5,000

  If {(nPrice > 5000)

  Event.Value = 1500;

  }

  end of the custom calculation script

  For more information, see Conditional Execution by Thom Parker.

• If then else-based sequence generator

  Hello
  
  I want to increment a sequence generator based on my if then another condition. I know that it is not if another feature, but rather we deal.
  Can you please let me know how to solve this problem?
  
  Kind regards
  Siva

  Hello

  There are different approaches, can have expressions SQL handling sequences (you will need to deploy only the code base set);
  http://blogs.Oracle.com/warehousebuilder/illustrations/sequences_in_owb1.jpg

  Also, using the sequence in the multipath scenario generator;
  http://blogs.Oracle.com/warehousebuilder/illustrations/sequences_in_owb2.jpg

  Using the sequence generator, OWB has more smarts on you doing so can generate different flavors or SQL/PLSQL.
  See you soon
  David

• NULL value in IF - THEN-ELSE handling

  I have a slider that retrieves prior_value and current_value from a table;
  
  Select current_value from xyz, prior_value;
  
  Then, I need to set a flag indicator based on compared them to the above two attributes.
  
  IF prior_value > current_value
  then
  Set flag_ind = 62;
  ELSIF
  prior_value < current_value
  then
  Set flag_ind = 63;
  ELSIF
  prior_value = current_value
  then
  Set flag_ind = 64;
  END IF;
  
  the problem is if prior_value is NULL, the comparison above does not give results as expected.
  
  How can I handle this.
  Thank you.

  Maybe something like that?

  IF prior_value IS NULL
  then
    -- case when prior_value is null
  elsif
     prior_value > current_value
  then
     set flag_ind = 62;
  ELSIF
     prior_value < current_value
  then
     set flag_ind = 63;
  ELSIF
     prior_value = current_value
  then
     set flag_ind = 64;
  END IF;