APEX 4.0: > Charts: chart of queries using Bind variables > does not?

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• Text added to the text field using the variable does not appear

  Hello

  I have a test field I created dynamically.  If I add some text to it by writing: myField.text = 'text', the text if poster, but if I add text using a variable is nothing.  If I trace trace text in the text field ("text =" myField.text) get good value.

  Someone at - it ideas?

  Best regards

  Chris McLaughlin

  Try to comment out the two lines below and see if it helps...

  ["textField" + guestCueCnt 'c'] .defaultTextFormat plus myFormat;
  ["textField" + guestCueCnt + 'c'] .embedFonts = true;

• Problem using bind variables in shared components report queries

  Greetings,
  
  I use APEX 4.0.1.00.03 and BI Publisher 10.1.3.4.1.
  
  In the APEX, I try to create a report query that uses bind variables in the where clause. I have a page that contains a button and a text element (P1_ID). The button is used to call the report. I went the shared components and created a new report query. Here is the text of the code.
  

  select violation_date
  , violation_type
  , nvl(:P1_ID,'zzz')
  from edd_procard_violations
  where upper(card_holder_id) = upper(:P1_ID)

  I also have Session State to enabled and have added the P1_ID in the area of 'State of Session' under the query.
  
  When I change the query, and click on the 'Set Bind Variables' button, I get a field where I can enter a value for: P1_ID I enter a value that should return lines, but when I click on the button "Test query", I get no rows returned. If I comment on where clause and test the query, even once, I get all rows in the table. You'll notice in my query I have included nvl(:P1_ID,'zzz'). When I run the query, without where clause, the returned value is always "zzz" indicating that: P1_ID is null.
  
  No idea what I am doing wrong?
  
  Thank you very much.
  Larry

  Hello Larry,.

  Looks like the wizard to create a report query in the shared components has a bug related to bind variables. I was able to reproduce your problem. Just create the query using the link variable, check the box to include session state, add the item and create the query. When you use the report query to download the report, where the your clause will work fine.

  Thank you
  Machaan

• Estimate of poor cardinality using Bind Variables

  Hi I'm using the 11.2.0.4.0 Oracle version. I have a query that is underway for the plan of the poor execution by the estimate of poor cardinality for two tables (I've extracted and published this part only) as I mentioned below, the individual conditions for which the estimate goes bad and moving entire query execution path.

  These are for two tables and currently we use BIND variable for them in our code, and I notice, its best estimate gives with literals. I need to know how to handle this scenario that I need this query to execute for all types of volumes. Is there something I can do without changing the code, as it works well for most of the execution? In the current scenario of the main query that uses those below tables providing a plan (index + nested loop) that works very well for small volume, but running for 10 hr + for large volume as ideally its going to the same regime.
  And Yes, most time that this request will be hit for small volume, but killing some appearance of large volume presents the performance of the queries.

  
  Here are the values of the variable binding.

  B1 VARIABLE VARCHAR2 (32);
  B2 VARIABLE VARCHAR2 (32);
  B3 VARIABLE NUMBER;
  B4 VARIABLE VARCHAR2 (32);
  B7 VARIABLE VARCHAR2 (32);
  B5 VARIABLE NUMBER;
  B6 VARIABLE NUMBER;

  EXEC: B1: = 'NONE ';
  EXEC: B2: = NULL;
  EXEC: B3: = 0;
  EXEC: B4: = NULL;
  EXEC: B7: = NULL;
  EXEC: B5: = 0;
  EXEC: B6: = 0;

  ---- For  TABLE1-------
   -- Published Actual VS Etimated cardinality
   
   
  -- With bind values
  select * from TABLE1 SF
  WHERE (   (SF.C1_IDCODE = :B4) OR (NVL (:B4, 'NONE') = 'NONE'))
      AND ( (SF.C2_ID = :B3) OR (NVL (:B3, 0) = 0));
  Plan hash value: 2590266031
  -----------------------------------------------------------------------------------------------------------------------------------------------
  | Id  | Operation                 | Name                | Starts | E-Rows | A-Rows |   A-Time   | Buffers | Reads  |  OMem |  1Mem | Used-Mem |
  -----------------------------------------------------------------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT          |                     |      1 |        |  28835 |00:00:00.08 |    2748 |     46 |       |       |          |
  |*  1 |  TABLE ACCESS STORAGE FULL| TABLE1              |      1 |     11 |  28835 |00:00:00.08 |    2748 |     46 |  1025K|  1025K|          |
  -----------------------------------------------------------------------------------------------------------------------------------------------
  Predicate Information (identified by operation id):
  ---------------------------------------------------
     1 - storage((("SF"."C1_IDCODE"=:B4 OR NVL(:B4,'NONE')='NONE') AND ("SF"."C2_ID"=:B3 OR NVL(:B3,0)=0)))
         filter((("SF"."C1_IDCODE"=:B4 OR NVL(:B4,'NONE')='NONE') AND ("SF"."C2_ID"=:B3 OR NVL(:B3,0)=0))) 
   
  -- With literals 
  select * from TABLE1 SF
   WHERE  (   (SF.C1_IDCODE = null) OR (NVL (null, 'NONE') = 'NONE'))
        AND ( (SF.C2_ID = 0) OR (NVL (0, 0) = 0));
     Plan hash value: 2590266031
  --------------------------------------------------------------------------------------------------------------------------------------
  | Id  | Operation                 | Name                | Starts | E-Rows | A-Rows |   A-Time   | Buffers |  OMem |  1Mem | Used-Mem |
  --------------------------------------------------------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT          |                     |      1 |        |  28835 |00:00:00.03 |    2748 |       |       |          |
  |   1 |  TABLE ACCESS STORAGE FULL| TABLE1              |      1 |  28835 |  28835 |00:00:00.03 |    2748 |  1025K|  1025K|          |
  --------------------------------------------------------------------------------------------------------------------------------------
  
  --------For TABLE2 ----------------------- 
  -- Published Autotrace plan, as it was taking long time for completion, and actual cardinality is 45M, but its estimating 49 With bind value---
  
  --withbind value
  select * from TABLE2 MTF
  WHERE (   (MTF.C6_CODE = TRIM (:B2)) OR (NVL (:B2, 'NONE') = 'NONE'))
    AND (   (MTF.C3_CODE = :B1)  OR (NVL (:B1, 'NONE') = 'NONE'))
    AND (   (MTF.C4_CODE = :B7)  OR (:B7 IS NULL))
    AND (   (MTF.C5_AMT <= :B6)  OR (NVL (:B6, 0) = 0))
    AND (   (MTF.C5_AMT >= :B5)  OR (NVL (:B5, 0) = 0));
  Execution Plan
  ----------------------------------------------------------
  Plan hash value: 1536592532
  -----------------------------------------------------------------------------------------------------------
  | Id  | Operation                  | Name         | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
  -----------------------------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT           |              |    49 | 10437 |   358K  (1)| 01:11:43 |       |    |
  |   1 |  PARTITION RANGE ALL       |              |    49 | 10437 |   358K  (1)| 01:11:43 |     1 |  2 |
  |*  2 |   TABLE ACCESS STORAGE FULL| TABLE2       |    49 | 10437 |   358K  (1)| 01:11:43 |     1 |  2 |
  -----------------------------------------------------------------------------------------------------------
  Predicate Information (identified by operation id):
  ---------------------------------------------------
     2 - storage(("MTF"."C4_CODE"=:B7 OR :B7 IS NULL) AND ("MTF"."C3_CODE"=:B1 OR
                NVL(:B1,'NONE')='NONE') AND ("MTF"."C5_AMT"<=TO_NUMBER(:B6) OR NVL(:B6,0)=0) AND
                ("MTF"."C5_AMT">=TO_NUMBER(:B5) OR NVL(:B5,0)=0) AND ("MTF"."C6_CODE"=TRIM(:B2) OR
                NVL(:B2,'NONE')='NONE'))
         filter(("MTF"."C4_CODE"=:B7 OR :B7 IS NULL) AND ("MTF"."C3_CODE"=:B1 OR
                NVL(:B1,'NONE')='NONE') AND ("MTF"."C5_AMT"<=TO_NUMBER(:B6) OR NVL(:B6,0)=0) AND
                ("MTF"."C5_AMT">=TO_NUMBER(:B5) OR NVL(:B5,0)=0) AND ("MTF"."C6_CODE"=TRIM(:B2) OR
                NVL(:B2,'NONE')='NONE'))
    
  -- with literal
  select * from TABLE2 MTF
  WHERE (   (MTF.C6_CODE = TRIM (null)) OR (NVL (null, 'NONE') = 'NONE'))
   AND (   (MTF.C3_CODE = 'NONE') OR (NVL ('NONE', 'NONE') = 'NONE'))
    AND (   (MTF.C4_CODE = null)  OR (null IS NULL))
     AND (   (MTF.C5_AMT <= 0)  OR (NVL (0, 0) = 0))
    AND (   (MTF.C5_AMT >= 0)  OR (NVL (0, 0) = 0));
  Execution Plan
  ----------------------------------------------------------
  Plan hash value: 1536592532
  -----------------------------------------------------------------------------------------------------------
  | Id  | Operation                  | Name         | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
  -----------------------------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT           |              |    45M|  9151M|   358K  (1)| 01:11:41 |       |    |
  |   1 |  PARTITION RANGE ALL       |              |    45M|  9151M|   358K  (1)| 01:11:41 |     1 |  2 |
  |   2 |   TABLE ACCESS STORAGE FULL| TABLE2 |    45M|  9151M|   358K  (1)| 01:11:41 |     1 |  2 |
  -----------------------------------------------------------------------------------------------------------
  
  select column_name,num_nulls,num_distinct,density
  from dba_tab_col_statistics where table_name='TABLE2'
  and column_name in ('C3_CODE','C4_CODE','C5_AMT','C6_CODE');
  C3_CODE 0 65 0.0153846153846154
  C4_CODE 0 2 0.5
  C5_AMT 0 21544 4.64166357222429E-5
  C6_CODE 1889955 71 0.0140845070422535
  
  

  933257 wrote:

  ((SF. C1_IDCODE =: B4) OR (NVL (: B4, 'NONE') = 'NONE'))

  In fact for literals, I did not find any section of the predicate after running the sql code with activation "set autotrace traceonly explain."

  The main problem is with another large query whose cardinality is underestimated due to the presence of these table (table1, table2) with the above mentioned clause, and the query is for the analysis of index + nested with values of Bind loops and take 10 hr +, whereas with literals, its completion in ~ 8minutes with FTS + Hash Join.

  Your real problem is that you try to have just a single SQL query handle all POSSIBLE thanks to the use of embedded FILTERS ' either / or ' filters in the WHERE clause.  You want only a select this OPTION to run whatever filters have been selected at run time by the user or the application using it.  And it would never work.  You really need to SELECT different queries for different combinations of filter conditions.

  Why?  Think for a minute.  How Oracle works internally?  A SQL SELECT query gets analyzed and an execution plan is produced which is stored in the library cache and gets REUSED on all subsequent executions of this query - except in certain cases where there may exist several plans run through several cursors of the child.  So with only SELECT a query you only AN execution plan in the library cache, to be used by all THE executions of this query, regardless of the value of your run-time binding variables.

  Lets put another way - each library cache execution plan is associated with a SQL statement.  If you want a DIFFERENT execution plan then you need run a DIFFERENT SQL statement.  That's how you get a different execution plan - by running a different SQL statement.  Running the SAME SQL query generally you will get the SAME execution plan every time.

  In addition, because of the "either / or" filters that you use you will end up generally with a full Table Scan on each of the referenced tables.  Why?  Given that the optimizer must produce an implementation plan that manages all possible contingencies for all values of possible bind variables in the SELECT.  If the optimizer should choose to use any index based on one of these "either / or" filters then it would only help performance when real value was provided, but it would be really bad if a NULL value was supplied.  If the optimizer ends up ignoring the index because they are not always optimal for all possible input values and instead chose a plan that is "good enough" for all input values possible.  That means that it will use a scanning Table full.

  I hope you can see that it is precisely what is happening for you with your query.  You select this OPTION to manage the different combinations of filter, which leads to the execution plan only one, which leads to scans full Table on the referenced tables in these ' either / or ' filters.

  The solution?  Build queries SELECT DIFFERENT when input values are NULL.  How you do that?  Read this article to ask Tom that tells you:

  http://www.Oracle.com/technetwork/issue-archive/2009/09-Jul/o49asktom-090487.html

  To sum up - when you have real value for a bind variable 'bind_var1' add the following filter to your CHOICE:

  AND column_name1 =: bind_var1

  When the binding variable is NULL, add the filter according to your CHOICE:

  AND (1 = 1 OR: bind_var1 IS NULL)

  Now, you'll have 2 queries SELECT must be performed, which have exactly the same number of variables in the same order bind, which is important.  When you then run one of these variations, Oracle can analyze and optimize each one SEPARATELY, with a single execution by the SELECT query plan.

  When you provide a real value, the filter is a normal 'column = value' that the optimizer can use all indexes on this column, because NULL values are not referenced.

  When there is no real value, the optimizer will analyze the '1 = 1 GOLD' and realize that "1 = 1" is set to TRUE and GOLD, it is quite TRUE regardless because the binding variable is null or not.  This means that the optimizer will actually REMOVE this filter, because it filters nothing because it is always TRUE.  You will end up with an operating plan based on the other filters in the query, which is what you want because you have no filter on this column.

  What is it - producing distinct SELECT queries to determine if you have a real value to filter or not you end up with DIFFERENT execution plans for each of them, and each of them is OPTIMAL for this particular set of filters.  Now you get good performance for each variation of the performance of the SELECTION, rather than sometimes good and sometimes very bad when using SELECT only one.  It is impossible to try to get multiple shots of execution 'optimal' out of a SELECT query.  That's why you get mediocre performance under different bound the values of the variables.

  John Brady

• In numbers, I can't use then "/" operator to divide 2 cell, when I use may 7 does not appear "/", appear.

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  The difficulty it Center Microsoft said that my serial cable using IrDA protocol does not work properly.

  Appreciate any suggestions on how to solve this problem.

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  Hi, Steve Stephens.

  Did you run the fixit available in the link below?
  Hardware devices do not work or are not detected in Windows

  Method 1: Check for any error message in Device Manager

  When a device is not functioning, Device Manager also typically displays an error message with an error code that comes with it. First, search for errors in the Manager of devices to do this, follow the steps below:

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  (b) If you are prompted for an administrator password or a confirmation, type the password or provide confirmation.

  (c) in the Device Manager, find your device, and then double-click the device name.

  (d) If an error code has been generated, the code appears in the status area of the device under the general tab

  
  Method 2: download and install all available Windows Update

  Install Windows updates
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  Method 3: Download and install SP2

  Learn how to install Windows Vista Service Pack 2 (SP2)
  http://Windows.Microsoft.com/en-us/Windows-Vista/learn-how-to-install-Windows-Vista-Service-Pack-2-SP2

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• Bind variables are not getting used

  Hi all
  
  Do not use bind variable on my Oracle 11g server. That's why same query duplicate in the aqlarea view. Please tell em how to overcome this problem.
  
  SELECT * FROM message_data WHERE (organizationid = '1') AND (entityid = '105055933') AND (unit = 'employment') AND (status! = '1') ORDER BY id ASC
  
  Thank you

  What is the value of your cursor_sharing parameter?

  If that is CORRECT they will share the SQL area only when their texts match exactly.
  You need to put STRENGTH to similar statements to share SQL or SIMILAR.

  Take a look at: http://docs.oracle.com/cd/B19306_01/server.102/b14211/memory.htm#sthref496

• Correct way to use Bind variables when you use an interface to MS SQL Server

  Hey,.
  I have some difficulty to find how to use bind variables in a view, when you use an interface to MS SQL Server. For some reason when I use an ApplicationModule who has a library of MS SQL Server JDBC loaded and I try to click on OK when you change the following query:
  
  SELECT kit_status, component_id
  OF numbered_inv
  WHERE trialname =: 1
  
  I get an error stating that ' SQL Query Error Message incorrect syntax near ':'. JDeveloper is compatible with SQL server for bind variable as this query works fine if I replace the: 1 with a Word to say "Test test".
  
  Thanks in advance
  
  Edited by: NullCheck December 15, 2010 14:06

  Use positional JDBC Style Binding to bind variables
  Try to use? Instead of:
  As shown here:
  http://www.Oracle.com/technetwork/developer-tools/jdev/multidatabaseapp-085183.html

• PL/SQL using bind variable to delete records

  Hello
  
  I'm currently implementing PL/SQL using bind variables to remove records from the "item_progress" table in the simple join query where I'm passing itemName, itemLoc and orderLoc in the delete query in pl/sql block.
  
  Please suggest, it should be easy for oracle experts...
  
  (a) I need first records in the item_progress table by using the join query and then update of status in the renew_item table.
  (b) it works fine if I use the simple removal with a condition that is ("DELETE from item_progress where itemname =: 1' using itemname1").
  
  (c) but it gives an error when I run it using delete with join:
  ---------------------------------------
  * Invalid relational operator ORA-00920:
  ORA-06512: at "SE", line 14 (it's the deletion with the join... "DELETE FROM item_progress WHERE item_id IN (SELECT ip.item_id'...)" ....'
  ORA-06512: at line 10
  Process exited.*
  ---------------------------------------
  
  create or replace PROCEDURE PUT (itemName IN VARCHAR2,
  itemLoc IN VARCHAR2,
  orderLoc IN VARCHAR2) is
  itemName1 varchar2 (30);
  itemLoc1 varchar2 (30);
  orderLoc1 varchar2 (30);
  BEGIN
  orderLoc1: = ' C: test/local /';
  itemLoc1: = ' / / L123/R;
  itemName1: = 'AAA ';
  
  immediate execution
  
  "DELETE FROM item_progress WHERE item_id IN (SELECT ip.item_id FROM ip, item_order io item_progress WHERE io.orderlocation: = 1 AND ip.order_id io.order_id UNION SELECT item_id FROM item_progress WHERE ITEMLOCATION =: = 2) AND itemname: = 3' using orderloc1, itemloc1, itemname1;"
  
  -"DELETE from item_progress where itemname =: 1' using itemname1; -IT WORKS FINE
  -Once the above query is updated to success, the status in another table
  -Renew_item update the Status value = "RENEWED" where ITEMNAME =: 1, ITEMLOCATION =: 2 using itemname1, itemloc1;
  
  commit;
  END OPERATIONS;

  user10828299 wrote:
  Please suggest, it should be easy for oracle experts...

  You have made a typo. bind variables are preceded by two points, while you put a colon in front of the equality operator that he listens to it in the PL/SQL assignment operator. Change:

  WHERE io.orderlocation : = 1

  TO

  IO.orderlocation WHERE =:1

  Change:

  WHERE ITEMLOCATION : = 2

  TO:

  WHERE ITEMLOCATION =:2

  Change

  AND itemname : = 3

  TO:

  AND itemname =:3

  SY.

• Using Bind Variable in a SELECT statement

  Hello
  
  I am trying to build my SQL query running using bind variables and in Oracle® Fusion Middleware Fusion developer Guide for Oracle Application Development Framework 11 g Release 1 (11.1.1) it is said that ' after you define bind variables, the next step is to reference them in the SQL statement. While SQL syntax allows you to bind variables to appear in the SELECT list and in the WHERE clause, you'll generally use them in this context, as part of your WHERE clause. ».
  
  However, when I try to use bind variables in my SELECT list because I had set a type to the string of the variable variable is inserted with quotes each side for example SELECT TestTable FROM 'Service '. Is it possible to use bind variables to insert a value in my list of selection without the quotes around it?
  
  Thanks in advance,
  Tom

  Hi Robinst,

  I think you want to set up column name of the table that is not possible using bind variables. With the help of the bind variables you can send a value to the SQL. The String value is therefore always with inverted commas.

  Kind regards

  Branislav

• Report using Bind Variables

  Hey everybody,
  
  I have a little trouble to create a report. I need the FROM part of the code in order to use bind variables. I came up with this piece of code below, but im getting the following error:
  
  Failed to parse the SQL query:
  ORA-06550: line 1, column 8:
  PLS-00103: encountered the symbol "" when expecting one of the following values:
  
  begin function package pragma procedure subtype type use
  form
  current cursor
  The symbol "" was ignored.
  ORA-06550: line 2, column 24:
  
  PLS-00103: encountered the symbol "" when expecting one of the following values:
  
  begin function package pragma procedure subtype type use
  form
  course
  
  Where can I see im wrong?
  
  Thanks in advance,
  -N.S.N.O.
  
  Code
  DECLARE
  x VARCHAR2 (4000);
  BEGIN
  x : = x || "select *";
  x : = x || "from";
  x : = x || : p13_schema;
  x : = x || '.ddl_log @';
  x : = x || : p13_db_name;
  x : = x || ' _DBAAPEX. TNTEWW. COM';
  RETURN (x);
  END;

  AHA, but when you have changed the source, have you also changed the Type (from "SQL query" to "SQL Query-PL/SQL function return SQL Query")?
  And clicked on "use generic names (analysis of query runtime only) column" option below the source code?

• write a graph in a cluster using a refnum does not?

  Hi all

  A little bit of a weird (I think). I'm trying to update a table that is in a cluster using a refnum.

  See the attached example, Boolean updates correctly, but not the graph (above). Y at - it something I'm doing wrong or can graphics simply can't be updated in this way?

  With the help of LV 8.6 in Win XP (SP3).

  Ideas?

  PNR

  It does not work. You must remove the reference for the cluster chart and update it in this way. See attached mod.

• Use of excel2collection does not

  Hey everybody,
  
  I am trying to download a file in format XLS with APEX; I use the earpiece of the Apex and following the steps I've seen in blogs like that of Spendolini (http://spendolini.blogspot.com.es/2010/02/uploading-xls-files-with-apex-listener.html) and in this forum (https://kr.forums.oracle.com/forums/thread.jspa?threadID=2342792). However, it seems that I get no information in the collection, because I get a message "No data found" after downloading the excel.
  
  I try to check the info from the collection in 3 ways: in debug mode, from the SQL commands (select * from apex_collections) and with a report on the same page where the file browser. In these 3 ways, the result is the same: no data found.
  
  I checked that the demand for the 'Upload' button is "xls2collection", and the lines added in the apex_config.xml are the following:
  

  <entry key="apex.excel2collection">true</entry>
  <entry key="apex.excel2collection.onecollection">false</entry>

  No matter where these lines are added?
  
  I use APEX 4.1.1. I'd appreciate any help on this.
  
  Thank you
  Elena.

  Hey Elena,

  I am trying to download a file in format XLS with APEX

  What version of Excel depends on your file? Note that APEX listener currently can only handle versions prior to 2003.

  I checked that the demand for the 'Upload' button is "xls2collection".

  Do you have other actions on this page? And what is the target of your item to browse file? (Must be WWV_FLOW_FILES )

  No matter where these lines are added?

  They should be in the ++ tag that surrounds the other entries. Despite this, the order does not question, although I got them only after the other entries.
  Have you restarted APEX listener after you have added these entries?

  Could you put the listener APEX out of the newspaper for the attempt to download?

  -Udo

• Using bind variable to allow the user the place where complete clause.

  Hello
  
  I have a question like that I am able to run in SQL_Developer:
  

  SELECT INITCAP(c.name) AS "Species Name"
       , AVG(b.height) AS "Avg Height (m)"
    FROM smt_plot_index a
       , smt_photo_plot_data b
       , smt_species_names c
   WHERE a.plot_id = b.plot_id
     AND b.species_name_id = c.species_name_id
     AND a.plot_id IN (2473201,2473202)
   GROUP BY c.name

  But I'd like to do the following in an apex application:
  

  SELECT INITCAP(c.name) AS "Species Name"
       , AVG(b.height) AS "Avg Height (m)"
    FROM smt_plot_index a
       , smt_photo_plot_data b
       , smt_species_names c
   WHERE a.plot_id = b.plot_id
     AND b.species_name_id = c.species_name_id
     AND a.plot_id IN ( :P11_ENTER_PLOT_NUMBERS )
   GROUP BY c.name

  But this returns an error:
  
  error report:
  ORA-01722: invalid number
  
  I know that if I included only one number for example 2473201 in the element: P11_ENTER_PLOT_NUMBERS it market, but if I try and enter the following text in the element 2473201,2473202 it does not work. The screen session state, said that the value of the item is correct depending on how I entered it.
  
  Anyone have any solutions for this?
  Thank you
  Ben
  
  Published by: Benton on May 6, 2010 13:54

  Very strange... read the whole message again, there is already something, you should change: INSTR (': ' |: P11_ENTER_PLOT_NUMBERS |': ',' :'|| a.plot_id |': ') > 0 use INSTR ("," |: P11_ENTER_PLOT_NUMBERS |) ',', ',' || a.plot_id | ', ') > 0

  When you use one as a separator instead of:

  You can try to run in the SQL Developer and see how it works?
  If it works, then you would look in session state to see what values are actually used.

  I tried with BLAKE as a value in P1_TEST and that seems to work:
  Select *.
  WCP
  where INSTR (': ' |: P1_TEST |': ',' :'||) Ename |': ') > 0

  Hope that helps,
  Dimitri