Can OBIEE use Bind Variables?

I doubt that it would be used for warehouse queries, but I'm the question arises. Has anyone used in OBIEE?

[Here is a brief summary about them. | http://www.akadia.com/services/ora_bind_variables.html]

I checked with the support of Oracle and it's official - OBIEE does not support the bind variable.

Tags: Business Intelligence

Similar Questions

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

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

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?

WARNING: Incompatible Arg. You can't use stack Variables If generating series is not defined

What does this message mean?

"WARNING: incompatible Arg. you can't use stack Variables If generating series is undefined."

Where can I put generate series only?

Thank you

Derek

Hi Derek,.

Not all LabVIEW C Generator settings are compatible with each other. In this case, you must define generate series only (aka 'disable parallel execution') If you want to generate the code uses the variable stack.

Can I use a variable in a slider?

Version of DB 10g
Developer SQL 3.

Hi once again, everything

This post is a result of the post previous 'Sequence increment by 2 and not 1.'

Here's a quick run down of what I do.
We have historical records dating back decades and decades and decades (1900). Some of the most recent data were recorded in the worksheets. With some manipulation of data, it was possible to reorganize the data in its forms of entry in a flat file. These data were then imported into Access database, then using SQL Developer I made a data base for each access database connection and used copy for Oracle... tool to create a table in my flat file schema. In test data that I have right now that I copied the 5 access to Oracle databases and the results are five paintings called plot_84, plot_151 etc. I created a database that contains four main tables where the data from the flat files must be inserted, to standardize the it (I think the sentence is).

I with the help of a large number has been able to train the following anonymous block, and it works very well (with the exception of the question of sequencing).

DECLARE get_plot_measurement_id NUMBER;
update_plot_measurements VARCHAR2(4000);
get_tree_id NUMBER;
get_plot_id NUMBER;

BEGIN
    --1. Initiate insert process by getting PK from psp_plots
    SELECT plot_id INTO get_plot_id FROM psp_plots WHERE plot_name = 84; 
    
    --2. Insert records into psp_plot_measurements and keep relationship with psp_plots with variable get_plot_id.
    --   and get primary key value of psp_plot_measurements to insert into psp_tree_measurements during loop process.
    INSERT INTO psp_plot_measurements (plot_id) VALUES (get_plot_id) RETURNING plot_measurement_id INTO get_plot_measurement_id;    
    
    --3. Update record created at point 2.
    UPDATE psp_plot_measurements
       SET measurement_date    = (SELECT DISTINCT measurement_date FROM plot_84)
         , codominant_height   = (SELECT DISTINCT codominant_height FROM plot_84)
         , assessor            = (SELECT DISTINCT assessor FROM plot_84)
     WHERE plot_measurement_id = get_plot_measurement_id
     ; 
  
    --4. Open cursor to insert rows one at a  time and maintain relationships between related tables.
    FOR c1 IN
      (SELECT tree_number 
         FROM plot_84
      )
      
      LOOP      
    
        --5. Insert record into psp_trees
        --   and get primary key value of psp_trees to insert into psp_tree_measurements
        INSERT INTO psp_trees (plot_id, tree_name) VALUES (get_plot_id, c1.tree_number) RETURNING tree_id INTO get_tree_id;
    
        --6. Insert records into psp_tree_measurements and keep relationship with psp_trees with variable get_tree_id.
        INSERT INTO psp_tree_measurements (plot_measurement_id, tree_id) VALUES (get_plot_measurement_id, get_tree_id);
    
      END LOOP;

END;
/

But me being someone who loves jobs mind numbing again and again, and more (about 1000 times x, who knows) still wants something I can preload a list of arrays of flat file (5 in this example) and just not run it.

The problem is the following:
Can I use a variable in a cursor, how are hilighted in bold below.

"BOLD" has not worked is the bit of code FOR c1 IN (SELECT tree_number FROM plot_ | col_name_var) you will see just under point 4 below

DECLARE p_column_num NUMBER;
col_name_var VARCHAR2(30);
type number_ptb IS table OF VARCHAR2(4000);
p_column_nam number_ptb;    
get_plot_measurement_id NUMBER;
update_plot_measurements VARCHAR2(4000);
get_tree_id NUMBER;
get_plot_id NUMBER;

BEGIN

    p_column_num := 5;
    p_column_nam := number_ptb();
    p_column_nam.extend(6);

    p_column_nam(1) := 84;
    p_column_nam(2) := 151;
    p_column_nam(3) := 152;      
    p_column_nam(4) := 214;
    p_column_nam(5) := 283;

    FOR loop_int IN 1 .. p_column_num
    LOOP

      col_name_var := p_column_nam(loop_int);

--1. Initiate insert process by getting PK from psp_plots
      SELECT plot_id INTO get_plot_id FROM psp_plots WHERE plot_name = col_name_var; 
    
--2. Insert records into psp_plot_measurements and keep relationship with psp_plots with variable get_plot_id.
--   and get primary key value of psp_plot_measurements to insert into psp_tree_measurements during loop process.
      INSERT INTO psp_plot_measurements (plot_id) VALUES (get_plot_id) RETURNING plot_measurement_id INTO get_plot_measurement_id;    
    
--3. Update record created at point 2.
      update_plot_measurements := '
      UPDATE psp_plot_measurements
         SET measurement_date    = (SELECT DISTINCT measurement_date FROM plot_' || col_name_var ||')
           , plot_size_10_30cm   = (SELECT DISTINCT plot_size_10_30cm FROM plot_' || col_name_var ||')
           , plot_size_30_50cm   = (SELECT DISTINCT plot_size_30_50cm FROM plot_' || col_name_var ||')
           , plot_size_50cm      = (SELECT DISTINCT plot_size_50cm FROM plot_' || col_name_var ||')
           , codominant_height   = (SELECT DISTINCT codominant_height FROM plot_' || col_name_var ||')
           , assessor            = (SELECT DISTINCT assessor FROM plot_' || col_name_var ||')
       WHERE plot_measurement_id = ' || get_plot_measurement_id
       ;
 
       EXECUTE IMMEDIATE update_plot_measurements;
  
--4. Open cursor to insert rows one at a  time and maintain relationships between related tables.
      FOR c1 IN (SELECT tree_number FROM plot_|| col_name_var )   
          LOOP      
    
--5. Insert record into psp_trees
--   and get primary key value of psp_trees to insert into psp_tree_measurements
            INSERT INTO psp_trees (plot_id, tree_name) VALUES (get_plot_id, c1.tree_number) RETURNING tree_id INTO get_tree_id;
    
--6. Insert records into psp_tree_measurements and keep relationship with psp_trees with variable get_tree_id.
            INSERT INTO psp_tree_measurements (plot_measurement_id, tree_id) VALUES (get_plot_measurement_id, get_tree_id);
    
          END LOOP;
  END LOOP;
  
END;
/

Reviews on my welcome code.

Ben

Published by: benton on Sep 1, 2011 11:31

Published by: benton on Sep 1, 2011 11:32

Published by: benton on Sep 1, 2011 11:34

with your current model, you need to write once for each table or write dynamic SQL regardless of the bulk of collect. adding most collect simply means you can do all the inserts in a single step and generally average performance benefits (see docco to COLLECT in BULK and for ALL).

However, it is not really solve your problem.

can I suggest an ETL step where you move all of the data in a table, then cross and run this function on all resulting?

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

can we use repository variables in bi publisher as in answers
can we use repository variables in bi publisher as in answers

If possible, how
Yes,

but you should use Oracle BIEE as data source in order to use the variable in the repository

you will need to follow the following syntax: valueof ("variable")

Can I use a variable of environment inside a *.sql file?

Hello

I want to create an external table.
Then I use the command
create or replace directory abc as "C:\folder"... within a sql file.

Now, I want "C:\folder" way to be dynamic I use this path in many other places also inside the sql file. So I thought to create an environment variable and set this value. I tried using like %Path% but it gives error... where % PATH%=C:\folder.
Can I use a variable of environment inside a *.sql file?
But how to do it or is there another way.

Thank you
Olivier

Published by: user11018268 on February 19, 2010 01:03

You can use a variable substitution:

SQL> accept basedir prompt "input the base dir:  "
input the base dir:  c:\exp
SQL> create or replace directory exp as '&basedir';
old   1: create or replace directory exp as '&basedir'
new   1: create or replace directory exp as 'c:\exp'

Directory created.

SQL> create or replace directory exp_data as '&basedir\data';
old   1: create or replace directory exp_data as '&basedir\data'
new   1: create or replace directory exp_data as 'c:\exp\data'

Directory created.

SQL> create or replace directory exp_log as '&basedir\log';
old   1: create or replace directory exp_log as '&basedir\log'
new   1: create or replace directory exp_log as 'c:\exp\log'

Directory created.

SQL> select DIRECTORY_NAME, DIRECTORY_PATH
  2  from dba_directories;

DIRECTORY_NAME                 DIRECTORY_PATH
------------------------------ ------------------------------
EXP_LOG                        c:\exp\log
EXP                            c:\exp
EXP_DATA                       c:\exp\data

Max
http://oracleitalia.WordPress.com

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.

How many times can I use a variable binding in a query of the VO?

Is it possible that I can use a variable binding in a query of VO just once?
I test a query that keeps throwing the Houston-27122 error by pressing the application module tester. I tried to limit the problem to the simplest possible case, and it seems that the error is caused by the fact that I use the same variable bind two or more times.
When the query looks like this:
I have run, enter 'x' and it returns me the result.
When I change to:
I have run, enter the value
and immediately get the error
The same thing in sqlplus runs without problem:
My version of JDev is build JDEVADF_11.1.1.9.0_GENERIC_150314.0718.6673
Please, advise.
P. S. where can I find documentation queries are supported in your? In particular, I'm interested if I can use WITH the clause. There seems to be some confusion on this matter (see, for example, Oracle SQL WITH clause support - JDeveloper and ADF)
Thank you.

It depends on:

Open your VO in JDev and go the the query page.

In the lower part, there is a drop down 'link type', it is usually set to "JDBC-positional. In this case, you will need to provide the bind value for each occurrence of the variable binding separately.

You could change that to "named" (don't remember the exact name). But beware, this will also affect all relatioships master retail to others your. I think that this is not a good idea to change the style of binding to a single VO.

Good bye

DPT

Can I use session variables in data model BI publisher SQL query?
Hi Experts,

We apply security at the level of the BI Publisher 11g data.

In OBIEE we do so using session variables, so I wanted to just ask if we can use the same session variables in BI Publisher as well
That is, we can include a where clause in the SQL for the sample data as

Where ORG_ID = @{biServer.variables ['NQ_SESSION.]} {[INV_ORG']}

I would like to know your opinion on this.

PS: We implement security EBS r12 in BI Publisher.

Thank you
Read this-> OBIEE 11 g: error: "[nQSError: 23006] the session variable, NQ_SESSION.» LAN_INT, has no definition of value. "When you create a SQL query using the session NQ_SESSION variable. LAN_INT in BI Publisher [ID 1511676.1]

Follow the ER - BUG: 13607750 -NEED TO be able TO SET up a SESSION IN OBIEE VARIABLE AND use it IN BI PUBLISHER

HTH,
SVS

How to get SQL that do not use bind variables

Hello

I am trying to identify the SQL code which should benefit from the use of bind variables.
First of all, I tried to get the common signature of all the sql calls, using:

select * from (
select  force_matching_signature, count(1) from v$sql where force_matching_signature<>0 group by force_matching_signature order by 2 desc
) where rownum < 50;

Then I copied these values to the Clipboard and run:

select sql_text from v$sql where force_matching_signature=<<<copied_signature_value>>>;

Now, I want to make it automatically and get only 1 occurrence of each SQL that resembles others by using a query.

I tried this:

select sql_text from
(
select sql_text, force_matching_signature, row_number() over (partition by force_matching_signature order by sql_text desc)rn from v$sql where force_matching_signature <>0
)where rn <2 and rownum < 10 order by force_matching_signature desc

But it is not returning results by showing up at the count (1) from the first query, I've used. How can I change this if I get the results in order of "importance"?

Thank you

And I said. First use the command by then use rownum. I did not mention row_number. Also, there should be no need to add more columns.
Have you tried it? Why it did not work?

example not tested

select * from (
   select sql_text from (select sql_text, force_matching_signature, row_number() over (partition by force_matching_signature order by sql_text desc) rn from v$sql where force_matching_signature != 0)
   where rn = 1
   order by force_matching_signature desc /* add any ordering you like here */
   )
where rownum < 10  /* then filter on the first 10 results */

If you want to order that the statement that found most of the time comes first, say so. However, I don't see how to group in your case.
Maybe like this

example of tested

select * from (
   select cnt, sql_text
   from (select sql_text, force_matching_signature, row_number() over (partition by force_matching_signature order by sql_text desc) rn , count(*) over (partition by force_matching_signature) cnt
         from v$sql
         where force_matching_signature != 0)
   where rn = 1
   order by cnt desc, force_matching_signature desc /* add any ordering you like here */
   )
where rownum < 10  /* then filter on the first 10 results */
;

Published by: Sven w. October 11, 2012 14:49

Published by: Sven w. October 11, 2012 14:51

Published by: Sven w. on October 11, 2012 14:56 - number column added to the output

printing problem in pdf and csv using bind variables
Hello

I created a simple sql statement using a query and bind variables. I noticed when I remove the bind variables and hardcode the values that the CSV/PDF links work. When I handed the return variables in the query, the WB shows "no data found" and pdf shows only the column header.

If anyone can help me, I would be very happy!

Thank you
Ayed P.
Hello

How are set the bind variable? If there are topics evaluated by default on the elements of the page, so is not necessarily enough to ensure that the exports are their values. To set values, I tend to use calculations, conditional that the element is null, what works "Before Header". In this way, the value is stored in the session and is available for export. I think the defaults to be those that are defined when the page is submitted and are not available until now.

Andy

Can OBIEE use Bind Variables?

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