Passing Session State Variables to SQL query

Hi,
I am using 3 pages in my application build by APEX 3.1.2. Login Page, Report Page and Form Page.
I am using LDAP authentication for Login Page and I want the user session information to be feeded to the filter query
being used to display data on Report Page. Is there any way to do that. I know
there is one variable %LDAP_USER% which is using the userid given on login
page. But I dont know how to use APEX session variables to filter query. Need
assistance on that stuff.
Thanks,
Gaurav

Hi Gaurav,
Session "variables" (global items, application items and page items) can be accessed using v('ITEM_NAME') (for strings) or nv('ITEM_NAME') (for numbers) within sql queries/procedures/triggers etc.
If you look at the Substitution Strings section here: http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10499/index.htm#S you'll find more information about this and a list of items that you can use that are set by Apex itself.
Andy

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Passing values in a vector list as bind variables in sql query.

Hi,
I have a vector list containing values 12,13,14.
vector<string> v;
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Here the number of values in vector list are not fixed.
I want to pass these values as bind variables to sql query.
Can anyone suggest me how to do this.
Thanks in advance!!

Ah, the it's the classic 'Varying In-List' again
See:
The Tom Kyte Blog: Varying in lists...
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:110612348061 (started more than a decade ago, so scroll down for more recent examples)

Passing variables to SQL query from checkboxes

Hello,
I have a cursor which gets different ids from an id table. The cursor is something like this:
CURSOR id IS
         SELECT distinct id_ FROM I
                  order by id_;I then iterated through the cursor to made checkboxes to choose multiple ids:
FOR i IN id
       LOOP
        htp.p('<tr>
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Your requirement is not very clear. What happens when you select 3 checkboxes? What will be the difference between them? How do you pass that information to the oracle report?

Passing an argument in the SQL Query of a View Object

Hi,
It is possible that this question has been asked before, however I have searched for a half an hour in the forums and couldn't find a solution.
I am also new to using JDeveloper and ADF. Here's the situation:
I am developing an application that doesn't have to do anything else then displaying data from a database. Pretty straightforward actually.
Now I have made a vew pages with several collapsible panels (af:showDetailHeader) and have setup the datasources (or so I thought).
All that remains is:
- drag & drop a view object, from the application module that I created, onto the collabsible panels, so a child element gets created which displays data from the database.
- hack the layout so it looks like I want it to.
The problem that I have is the following:
I am using a 'User'-class that contains values I need when quering the database.
That User-object is part of a user-session.
What I want, for example, is to use the 'getPersonId()' function of that User-object and pass the argument to a SQL-query of a certain view-object.
The query would become something like:
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Now I've read some stuff about variable binding, which is complemented by something like (backing bean code):
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The examples I have found that might match my wishes are not using business components, but EJB's. I am having difficulty with understanding the 'how'-part of variable binding.
Also, I do not know enough of ADF to be able to create a situation like:
'User loads page, collapsible panel 1 is fully shown, the others are undisclosed.'
(meaning, that for panel1 a query has been executed.)
'User clicks on collapsible panel 2 which triggers a backingbean that somehow retrieves data from a view object'.
I would appreciate any help that somebody can give.
If it is not too much of a problem, please provide code snippets in case you have a solution. I am new to ADF :(.
-edit
I am using JDeveloper 10.1.3.3.0 in case that is of any importance.
Message was edited by:
Hugo Boog

Hello Stijn,
I didn't think about a referenced bean rule in the faces-config.
I added it right away and I am now able to set parameters of a View-object, not using a page button and before the page loads. You made my day!
In case anyone ever reads this post again, the summary of how to generate a table based on a View-object using dynamic parameters.:
1a: Go to faces-config.xml -> Overview tab'
1b: Go to the menuitem "Referenced Beans"
1c: Click on 'new' and select the existing bean you want to access data from and input a name. In this example I use name="user"
2: Create a View-object using the wizard.
2a: Specify the query you want in the menuitem 'SQL Statement'.
Add the 'parameters' you want to. You will have something like:
"SELECT * FROM someTable WHERE table.columnname LIKE :someArgument".
- hint: if you want the result to become something like:
"SELECT * FROM someTable WHERE table.columnname LIKE '%someArgument%'" then you have to add the '%'-characters in your code itself (read: someClass.setParameter("%" + someArgument);).
2b: In the menuitem 'Bind Variables' you have to add the variables you are referring to in the query. If you look at the query in 2a, then you have to add a variable with name "someArgument".
2c: Add the View-object to a Application Module (create one if nessecairy).
3a: Open a .jsp(x) file. Drag the View-object created in step 2 from the 'Data Controls'-pane to the page.
3b: Click on the '+' of the View-object in the 'Data Controls'-pane and open 'Operations' and drag 'ExecuteWithParams' to your page as a button.
3c: We do not want to use a button, the action has to be executed immediatly. So In the page source remove the lines that were created after dropping 'ExecuteWithParams'.
3d: Right-click on the page and select "Go to Page Definition".
3e: Go to the action id that is called 'ExecuteWithParams#', where # is a number.
Change the id to something useful.
3f: Change the NDValue so it corresponds with the value you want.
Example:
<action id="getAddressData" IterBinding="AddressesView1Iterator"
InstanceName="MyHRServiceModuleDataControl.AddressView1"
DataControl="MyHRServiceModuleDataControl" RequiresUpdateModel="true" Action="95">
<NamedData NDName="someArgument" NDType="java.lang.String"
NDValue="#{user.personId}"/>
</action>
Note: It is possible to use the value of a Backing Bean in NDValue.
Note 2: user is the bean I referred to in the faces-config.xml!
3g: Under the executables item, add an 'invokeAction' to pass the parameter to the View-object before your JSP-file loads:
<executables>
<invokeAction Binds="getAddressData"
id="loadAddressDataOfPersonIdInSession"
Refresh="prepareModel"/>
Thank Stijn Haus for this :)

Passing a Date variable to SQL

Hi,
I am trying to pass in a Date variable into SQL query, but I am getting this error:
"inconsistent datatypes: expected DATE got NUMBER"
and my code looks like this. I would appreciate any help on how I need to create the Date variable that SQL would accept it.
THANKS A LOT!
SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yy");
String txt = "01/01/1990";
java.util.Date startYear2 = (java.util.Date) formatter.parse(txt, new ParsePosition(0));
java.sql.Date startYear = new java.sql.Date(startYear2.getTime());
String txt2 = "12/31/1990";
java.util.Date endYear2 = (java.util.Date) formatter.parse(txt2, new ParsePosition(0));
java.sql.Date endYear = new java.sql.Date(endYear2.getTime());
String scoredGoalsQuery = "SELECT count(name) from player_goal_rel where name = '" + pName + "' and pdate BETWEEN "+ startYear +" and "+ endYear;
ResultSet scoredGoalsResult = stmt.executeQuery(scoredGoalsQuery);

You should be using prepared statements.
String scoredGoalsQuery = "SELECT count(name) from player_goal_rel where name = ? and pdate BETWEEN ? and ?":
PreparedStatement pstmt = connection.prepareStatement(scoredGoalsQuery);
pstmt.setString(1, pName);
pstmt.setDate(2, startYear);
pstmt.setDate(3, endYear);
ResultSet scoredGoalsResult = pstmt.executeQuery();

Different ways to referencing Session State variables

Hi,
According to APEX documentation there's 4 different ways to reference session state variables: http://download-west.oracle.com/docs/cd/B32472_01/doc/appdev.300/b32471/concept.htm#BEICHBBG
In an inline PL/SQL statement, what's the difference when using the different methods? I remember reading something that the bind and static text have a size restrictions. What's the difference between the V() and NV() functions?
Thank you.
Martin

Martin,
In PL/SQL, the preferable method is to use bind variable notation, e.g., :P1_ITEM. In HTML contexts, you must use &ITEM. notation. In stored procedures, you can use v or nv, the latter function being identical to the former with the additional characteristic that it raises an exception if the retrieved value is non-numeric.
Scott

Session state variables across multiple ApEx applications

We have a suite of loosely integrate ApEx applications that all share a common authentication scheme. When you first log in we attempt to load a series of session state variables with temporary data to streamline various logging and authentication related activities for the life of the session.
However, these session variables seem to disappear when you move from one application to another, so they are not truly tied to just the "session" which carries over across all applications, but the application from which the session state is set.
What is the suggested way, keeping in mind that the data being held may have security related context, to preserve values during a session, but regardless of which ApEx application you are in.
The method we are using to share the authentication is using a common "Cookie Name" from a common subscribed authentication scheme as suggested elsewhere on this site and seems to work very well outside of this specific issue.
Thanks in advance,
Barney

Apologies for the delay getting back on this.
My use of the word "disappear" was probably misleading. They were not visible from the second application. When setting "Session State" I was under the impression that it was setting it for the authenticated session, not for the specific application. (I am referring to the: apex_util.set/get_session_state).
Your solution will work fine, as long as I know which application the user last authenticated against. However, it could be one of over 30 (and growing) different applications which would require me writing a program to go through every "p_flow" to try and find a valid value every time I need to reference the field.
It would be really beneficial if you could store true Session variables which stay alive for the life of the authenticated session and is available to anything authenticated against that session id. This would streamline alot of cross-application program development.
The "get/set_session_state" is a misleading as it is not a Session value, but an Application value. The Session exists across multiple applications, while this procedure does not.
Thanks,
Barney

Pass the result of a SQL Query as table_name for another SQL Query

Hi All,
How to pass the result of a SQL Query as parameter to another SQL Query
Eg: I am doing the steps below.
1) select distinct table_name as TAB1 from all_tab_cols where table_name like 'T_%' and column_name like '%XYZ'
2) I want to pass the table_name from step 1 above as parameter to another query "select * from TAB1"
Thanks

Naveen B wrote:
Hi All,
How to pass the result of a SQL Query as parameter to another SQL Query
Eg: I am doing the steps below.
1) select distinct table_name as TAB1 from all_tab_cols where table_name like 'T_%' and column_name like '%XYZ'
2) I want to pass the table_name from step 1 above as parameter to another query "select * from TAB1"
ThanksYou should craete PL/SQL code with cursor which will accept a parameter and call that cursor inside the first one
But if the first sql returns only one row, you can do it with simple sql code
select * from (select distinct table_name as TAB1 from all_tab_cols where table_name like 'T_%' and column_name like '%XYZ')- - - - - - - - - - - - - - - - - - - - -
Kamran Agayev A. (10g OCP)
http://kamranagayev.wordpress.com
[Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]

Bind variables in SQL query of DBAdapter

Hi,
Can we add bind variables to SQL query when we define DB adapter...?

No, not in the Wizard.
I do not know if it is possible with the TopLink in combination with BPEL.
But can you use a Pl/SQL procudere/package that performs the dynamic SQL?

Passing a string into an SQL query IN statement

Hello,
I need to connect to a database to pull some data to dynamically create a form based on the data I pull back. My SQL query works fine when I manually run it through a SQL client tool, but when I try to pass it through my workflow I'm having trouble with passing my string into the IN part of the statement. So if for example my SQL query is:
SELECT Field1, Field2, Field3 FROM Table1 WHERE Field4 IN (?)
I have a process variable that has the string I'm trying to pass into the ?, but I don't seem to be able to get the query to run. I have tried setting up my query to run as a Parameterized Query (passing my string process variable into the ?), and by setting the query up through xPath (where I am calling my process variable with an xPath declaration), but am not having any luck.
The process variable I am trying to pass is formatted such that I'm passing 'Value1','Value2','Value3' but I can reformat this string if need be. Even with using test data I can't get the query to return anything. For test data I have tried: 'Value1','Value2','Value3' ; Value1','Value2','Value3 ; Value1,Value2,Value3 but the query never returns any data. I can't seem to see how to format the string to pass into the query. The Query will work with a single Value in the test data, but as soon as I try to pass multiple values within the string it fails. Any suggestions?

The problem looks to be a limit on what I can pass into the SQL query component. My string is coming from data returned from another database. I take the xml output from that database call, pass it through a set variable component to remove my xml tags from the string, and then format the string in a script component (I have to do it this way because of the way the data coming out of my first database call). I've put in loggers, and can see that the string I'm passing into my query that is giving me problems, is formatted the same way as if I were to use the concat function Scott listed above. It looks like there is a limitation on what can be passed in my variable. I have tried creating my entire SQL query statement in a set variable component, and then just calling the process variable that holds that statement, but there is a character limit of 128 character for what can be passed in a variable through xpath in the SQL query component.
The next thing I tried was changing my SQL where clause. Instead of passing my variable directly into the IN statement I set up a PATINDEX('%:'+countyname+ ':%', ?) > 0 call to check for the values in my database call. As you can see I took out the "," that I was passing as part of my string, thinking that the SQL component was getting confused by them, and placed ":" characters around my values being passed in my string variable. No matter what I try to do though I'm not able to get the query to run. The component looks like it is taking my string, and is seeing the whole thing as a string instead of passing it as individual values within a string.
I think I'm getting close, but I keep getting a Content not allowed in prolog exception in the server logs.

Passing SessionBean variable to sql query editor

Hi,
I am trying to pass a variable that I define locally in SessionBean to sql query via the query editor.
SELECT ALL comments.id,
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FROM comments
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--izumi

Use this SQL query:
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IF NEW VARIABLE IN SQL QUERY, DISPLAYS AS LAST COLUMN + rpad not working

Hello everybody and thank you in advance,
1) if I add a new variable to my sql query to select a column which was already in the table, it shows it in the report table as the Last column to the right. That is, if I add "street" to
something like city, postcode, street, store, manager, etc, instead of placing street between postcode and store, it places it as i said as the last column to the right.
2) When values are entered into the cells of the tables, yes, they do expand it to their needed lenght, But, only if it is one word. If it is two, like when i enter the value "very good"
then it takes two lines so as with a carriage return within the cell, thus, making it too high the row. I tried to padd spaces with rpad but it did not work. something like rpad(stock, 20,' ')
I must say that the table is in the same page where there is a Form, so as the table grows in lenth it is actually squeezing the form located right on its left.
3) rpad did not work with the most simple syntax, but less would with what i need because it turns out i am using DECODE in order to do a conversion between value displayed and
value returned in my select list of values, something like : DECODE (TO_CHAR (stock),'1','Deficient','2','Average','3','Good','4','Very Good',null) AS stock,
so, i have tried to put the rpad there in several places but either it gave parsing error or it left the column empty not picking any values.
thank you very much
Alvaro

Alvaro
1) That is standard behaviour of apex builder. You can change the display order with the arrows in the report attributes column report.
2) You will have to play with the style attributes of the column to accomplice this. For instance style="white-space:pre;" in the Element Attributes of the column attributes. White-space:normal would thread several space (' ') as 1. So no matter how many you add with rpad they will be shown as 1.
Or set a width either as attibute or in a style class for that column.
Nicolette

How to pass a value into a SQL Query?

Hi There,
I want to know if there is a possibility to pass a dynamic value in a sql query. For example I have a currency rate value (ex: rate = 1.319, 2.23 etc) which user wants to input when running the query (The rate is not taken from the system, so I cannot compare to any table column and pass it as a parameter).
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SELECT DISTINCT
hou.name
,poh.segment1 po_num
,pol.line_num po_line_num
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--,trunc(poh.creation_date) po_creation_date
,pol.cancel_flag
,msi.segment1 item_num
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,round(cost.item_cost,5)
,round((&p_rate * pol.unit_price),5) "CONVERSION"
,(cost.item_cost - round((&p_rate * pol.unit_price),5)) difference
,pov.vendor_name
FROM
po.po_headers_all poh
,po.po_lines_all pol
,po.po_vendors pov
,hr.hr_all_organization_units hou
,inv.mtl_system_items_b msi
,bom.cst_item_costs cost
WHERE
poh.po_header_id = pol.po_header_id
and pov.vendor_id = poh.vendor_id
and poh.org_id = hou.organization_id
and hou.organization_id = :p_operating_unit
and poh.currency_code = :p_currency
and poh.creation_date between :po_creation_date_from and :po_creation_date_to
and poh.type_lookup_code = 'BLANKET'
and msi.inventory_item_id = pol.item_id
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and msi.organization_id = 1
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and nvl(pol.cancel_flag, 'N') = 'N'
and &p_rate user parameter
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Passing user parameter into your sql query

I've created two user parameters...'Order_date_from' and 'Order_date_to'
I've written a simple query to list the total order amount, order number, party name and ordered date
Select sum ((unit_selling_price)*(ordered_quantity)), count(line_number), oe_order_headers_all.order_number, hz_parties.party_name, oe_order_headers_all.ordered_date
from oe_order_lines_all,
oe_order_headers_all,
hz_parties,
hz_cust_accounts
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and hz_cust_accounts.party_id = hz_parties.party_id
group by order_number, party_name, ordered_date;
I want to know how I can pass the value for the above mentioned parameters into my sql query so that it reflects as the 'ordered_date' in the report and only shows the data for the dates that the user inputs.
Any feedback would be appreciated. Thanks.

I want to know how I can pass the value for the above
mentioned parameters into my sql query so that it
reflects as the 'ordered_date' in the report and only
shows the data for the dates that the user inputs.
Any feedback would be appreciated. Thanks.And how does the "user" input these dates?

Can't pass a parameter to an SQL Query

I've looked for about an hour or more now on the web, java.sun.com, but can't find what I need:
I have a page called display.jsp, and I call it from the browser
http://localhost/display.jsp?libnum=1
In the page I have the following code:
<sql:query var="profileQuery" dataSource="${profileDS}">
SELECT * FROM singles.profile where libnum=?
<sql:param value="${libnum}"/>
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However, the database sees the query as
" SELECT * FROM singles.profile where libnum=null"
So, my question is how do I make this line work ? :
" <sql:param value="${libnum}"/> "
can you help ?
thanks !
Dennis

Dude .....
Here's my code now -- solved it... phew..
Just to think of it ... what a difference between "libnum" and "param.libnum". That was like 3-4, if not 5 hour difference for me.
<sql:query var="profileQuery" dataSource="${profileDS}">
SELECT * FROM singles.profile where libnum=?
<sql:param value="${param.libnum}"/>
</sql:query>
Dennis

Passing Session State Variables to SQL query

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