Max # of PreparedStatement parameters?

Hi, I'm building a dynamic prepared statement where the # of parameters is variable. Is there a limit on the # of parameters?
Thanks,
Tom

Based on the PL/SQL Program Limits chapter of the PL/SQL User's Guide http://download-west.oracle.com/docs/cd/B10501_01/appdev.920/a96624/e_limits.htm#14267 the limit appears to be 32k or 64k, depending on the types of statement.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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Max no of parameters in cgicmd.dat

Hi,
It has been observed that the max no of parameters that can be
passed thro'key mapping is 9.
If the no of parameters r more than 9, an error "Error parsing
parameters to command line" is flashed.
What r the options available in case one has to pass more than 9
parameters thro'key mapping.
The problem is concerned with reports6i
Thanx
Yogesh

We encounter problems on Oracle 8.05 when attempting to have more then 30 parameters.
("Invalid parameter type (sqlstate=S1105)").
Slobodan
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Jay ([email protected]):
Is there a limit on the number of parameters that can be used in the PL/SQL procedure declaration?
Jay<HR></BLOCKQUOTE>
null

MAX command line parameters

I could program a whole panel to allow the user to modify the setup parameters for a DAQmx task, but decided that it's easer to simply stop the task and launch MAX with LaunchExecutableEx and let the user play with the task settings there. Is there any way to tell MAX, e.g. through command line parameters, to open up and display a particular DAQmx task upon startup?
Solved!
Go to Solution.

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Jacob R. | Applications Engineer | National Instruments

Is there a max number of parameters that can be passed to a C function in test stand v. 1.0.1

I have had an issue with test stand version 1.0.1 (yes, I know; it's quite old) and calling a C function thru an action step. when I call this function with 18 parameters, it seems to hang. I have called a function with 16 and it seems to work. Is this a limit of the software? I am calling the function from a windows DLL that we've created. When I try to pull the function from the dll into test stand I also get a { error...but I get that in the other function's call and it seems to work fine. Any ideas?

ok, upon re-reading what I posted I can clearly see your confusion. haha. I think there are two separate issues.
1) Are there a maximum number of parameters one can use when calling a C function from a DLL? Yes, i'm trying to call a C function from test stand.
2) when I select the "module" tab, and select which DLL contains my function, the prototype has no information associated with it (by clicking the reload prototype button). I'm not sure why, as I'm using a declspec to send the function information out of the dll, but that's another topic. So I click on the source file tab and point the window to the .cpp of my function (within the DLL's project workspace) and when it begins to parse the file, I get an error about mis-matched curly brackets and if I wish to continue, and skip the rest of the parsing.
I click "OK" and when I go back to the module tab, I am able to see all my functions, along with the parameters in the drop down menu below. I fill in all the parameters and everything looks ok; no syntax errors, or anything else seemingly suspicious. I then run my test stand code and when I get to the step which calls this function, the system hangs and cannot proceed.
Any thoughts as to what might cause these issues?

Preparedstatement - parameterizing table name

public Vector getTableColumns(String tblName) { loadDriver(); t.removeAllColumns(); try { pstmt = conn.prepareStatement("select * from ? where rownum < 1"); pstmt.setString(1, tblName); rs = pstmt.executeQuery(); rsMetaData = rs.getMetaData(); numberOfColumns = rsMetaData.getColumnCount(); //get the number of columns for (int i = 0; i < numberOfColumns; i++) { // get the designated column's table name. t.setColumn(rsMetaData.getColumnName(i + 1)); //get the columns and add them to Vector } conn.close(); } catch (SQLException e) { e.printStackTrace(); } finally { closeConnection(conn); } return t.getColumn(); //return the array of the column names }
it says invalid table name
i tried hardcoding the table name inside and it works though

OnlyForJava wrote:
plz suggest another wayAs coded in your first post, presuming that you are not in fact trying to do something from the other thread...
There is no other way.
Parameterized types can not be used to represent DDL entities - they can only represent data.

Max no of parameters?

What is the MAXIMUM number of parameters that can be passed to an method in java?
Regards
Ayusman

There is a saying that if you are designing a method taking more
than 7 parameters, it is likely that you forgot a couple.That's why I declare all my methods like this:
> public Object[] foo(Object... param) {
//whatever
}This way I have inifinite flexibility for all time.Quiche eater. I always do this:public byte[] foo(byte[] code) {
// call to JNI here
}Real programmers don't need no steenking objects, we pass machine
code all around.
kind regards,
Jos ;-)

PreparedStatements with parameters inside functions

With PreparedStatements, can I use parameters inside of functions. For example, instead of doing:
stmt = conn.prepareStatement("INSERT INTO MyTable (EncData) VALUES (ENCRYPTBYKEY(KEY_GUID('MyKey'), 'ABCDEF''))");
I want to do:
stmt = conn.prepareStatement("INSERT INTO MyTable (EncData) VALUES (ENCRYPTBYKEY(KEY_GUID('MyKey'), ?))");
stmt.setString(1, "ABCDEF");
I am getting a 'String or binary data would be truncated' exception when trying this.
Thanks,
Kevin

OK ... let me take you a couple steps back ...
I can get PreparedStatements to work in Java (J2SE1.5):
stmt = conn.prepareStatement("INSERT INTO MyTable (Data) VALUES (?)");
stmt.setString(1, "ABCDEF");
However, the previous example does not work through SQL Server Management Studio ... it gives a syntax error:
INSERT INTO MyTable (Data) VALUES (?)
Moving onto my issue, how do I get PreparedStatement parameters to work within a function:
stmt = conn.prepareStatement("INSERT INTO MyTable (EncData) VALUES (ENCRYPTBYKEY(KEY_GUID('MyKey'), ?))");
stmt.setString(1, "ABCDEF");
And as mentioned earlier, the following works fine in Java J2SE 1.5
stmt = conn.prepareStatement("INSERT INTO MyTable (EncData) VALUES (ENCRYPTBYKEY(KEY_GUID('MyKey'), 'ABCDEF'))");
So, in conclusion:
I can successfully make PreparedStatements perform inserts using parameters in Java
I can successfully make PreparedStatements perform inserts in Java using the encryption function
However, I cannot make PreparedStatements perform inserts using parameters in the encryption function in Java
I cannot get a simple example of PreparedStatements to work in SQL Server Management Studio ... and wouldn't expect to ...
Thanks,
Kevin

Reporting Services Cube Parameters not generated automatically

Hi, I have a few reports which display data from an Analysis Services cube.
For example my report uses Dateset1 as the source of the report.
When I modify Dataset1 by adding a new parameters in the Query Designer, a new (hidden) dataset is created called: CustomerAgeCustomerAge.
But a new parameter on the report is not automatically generated. In the Dataset1 - Dataset Properties \ Parameters there is an entry for the parameter which should be created e.g. [@CustomerAgeCustomerAge]. I can work around this but I'd like to find the
cause. Is there a max number of parameters which are generated automatically - my report has 12.

Hi darkdusky,
Based on my understanding, when you add a new parameter in dataset query, the parameter doesn’t generate automatically in report parameters.
In Reporting Service, when we define a dataset query that contains a query variable, the query command is parsed. For each query variable, a corresponding dataset parameter and report parameter are created automatically. As we tested in our environment,
even we create thirteen parameters in data set query, corresponding parameters automatically appear both in report parameters and dataset parameters in dataset properties.
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If you have any question, please feel free to ask.
Best regards,
Qiuyun Yu

My CLOB insert with PreparedStatements WORKS but is SLOOOOWWW

Hi All,
I am working on an application which copies over a MySQL database
to an Oracle database.
I got the code to work including connection pooling, threads and
PreparedStatements. For tables with CLOBs in them, I go through the
extra process of inserting the CLOBs according to Oracle norm, i.e.
getting locator and then writing to that:
http://www.oracle.com/technology/sample_code/tech/java/sqlj_jdbc/files/advanced/LOBSample/LOBSample.java.html (Good Example for BLOBs, CLOBs)
However, for tables with such CLOBs, I only get a Record per second insert
of about 1/sec!!! Tables without CLOBs (and thus, without the round-about-way)
of inserting CLOBs are approx. 10/sec!!
How can I improve the speed of my clob inserts / improve the code? At the moment, for
a table of 30,000 records (with CLOBs) it takes about 30,000 which is 8 hours!!!!
Here is my working code, which is run when my application notices that the table has
CLOBs. The record has already been inserted with all non-clob fields and the "EMPTY_BLOB()"
blank for the CLOB. The code then selects that row (the one just inserted), gets a handle on the
EMPTY_BLOB location and writes the my CLOB content (over 4000 characters) to that handles
and then closes the handle. At the very end, I do conn.commit().
Any tips for improving speed?
conn.setAutoCommit(false);
* This first section is Pseudo-Code. The actual code is pretty straight
* forward. (1) I create the preparedStatement, (2) I go record by record
* - for each record, I (a) loop through each column and run the corresponding
* setXXX to set the preparedStatement parameters, (b) run
* preparedStatement.executeUpdate(), and (c) if CLOB is present, run below
* actual code.
* During insertion of the record (executeUpdate), if I notice that
* a Clob needs to be inserted, I insert a "EMPTY_CLOB()" placeholder and set
* the flag "clobInTheHouse" to true. Once the record is inserted, if "clobInTheHouse"
* is actually "true," I go to the below code to insert the Blob into that
* newly created record's "EMPTY_CLOB()" placeholder
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// I create the above for each record I insert and have this special uniqueRecord value to
// identify what record that is so I can get it below. clobInTheHouse is true when, where I
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                       System.out.println("E: clobWriter exception - " + ioe.toString());
                    }finally{
                         try{
                              clobReader.close();
                              clobWriter.close();
                              //System.out.println("   Clob-slob entered for " + tableName);
                         }catch(IOException ioe2){
                              System.out.println("E: clobWriter close exception - " + ioe2.toString());
     try{
          stmt.close();
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conn.commit();

Can you use insert .. returning .. so you do not have to select the empty_clob back out.
[I have a similar problem but I do not know the primary key to select on, I am really looking for an atomic insert and fill clob mechanism, somone said you can create a clob fill it and use that in the insert, but I have not seen an example yet.]

Multithreading and PreparedStatement

I am debugging a problem with the interaction between Hibernate and our JDBC driver.
Hibernate uses a PreparedStatement to insert values into the database. When it inserts a Timestamp value into the database, it sets the value into the Timestamp object, calls setTimestamp, and then it uses the same Timestamp object in other threads, setting it to different values, before it calls execute on the PreparedStatement.
My question is, is it valid for an application to assume that the JDBC driver has made a copy of the Timestamp value when it calls setTimestamp, or should it hold off on reusing the Timestamp value until after it has called execute?
To me it seems that the driver should be able to defer all processing of the PreparedStatement parameters until execute(), because the application could call clearParameters, in which case any work done by the JDBC driver would be wasted. This is not so obvious for Timestamp parameters, but what about stream parameters? Clearly the driver is not going to read the stream until execute.

I'm not talking about POJO. Think just straight JDBC, inside the guts of Hibernate.
Here is what Hibernate is doing:
Timestamp ts = new Timestamp();
// this one timestamp object is used by multiple threads
<now we have a thread that does this>
PreparedStatement pstmt = connection.prepareStatement("some sql");
ts.setTime(something);
pstmt.setTimestamp(n, ts);
<then, another thread does this:>
PreparedStatement pstmt1 = connection.prepareStatement("some sql");
ts.setTime(something else);
pstmt1.setTimestamp(n1, ts);
<meanwhile, the original thread is doing this>
pstmt.execute();
The JDBC driver only keeps a reference to the timestamp when Hibernate calls setTimestamp(). By the time Hibernate calls execute(), another thread has already picked up this timestamp object and reused it, so it doesn't contain the same value that it did when it called setTimestamp().
It's really horrible when the second thread calls setTime() when the first thread is in the execute() call, in the middle of reading its value to send it to the database, because the first thread reads an inconsistent value from the timstamp object and sends it to the database, which barfs because the inconsistent value ends up being something like Feb. 30. I can get this nightmare to happen pretty regularly on an SMP machine.
My question is: is Hibernate doing something bad by reusing the Timestamp object before calling execute(), or is the JDBC driver at fault for not keeping a copy of the Timestamp object at setTimestamp() time? I have read the JDBC spec over and over again and I can't see an answer to this question.

How to Create a Custom Integrator in R12 based on a Query set

Hi Everyone,
I am very much new to web adi. I got an unique requirement which I am finding it difficult. I did searched through the entire documentation/blogs/forums and I didnt find any suitable answer. Please let me know if anybody can throw some pointers here.
My Requirement is as follows
1) Using WEB ADI I need to update the data to collections responsibility ( I need to update unpaid reason code column and notes column for transactions)
2) So to start up with I need to design my excel template first with a query region to download the data. This query region may have 5-6 parameters like transaction number, customer name, customer number. When I click the submit button in query region, The data should be retrieved from database and should display in the same excel sheet.
3) Now for the data fetched from database, I need to update some of the columns and then again upload it back to EBS. I need to enable some of the columns to be LOV's.
Now My Questions are
1) Is this building a parameter based query then downloading to excel and then after modifying uploading back to EBS. Is this possible with WEB ADI. If this is doable then please let me know.
2) Unfortunately there are no interface tables or public API's available for collections responsibility then how one can update the data
Also
I was trying to create a custom integrator a basic one to insert the data to a custom table. I had used HR Integrator set up for creating custom integrator.Enabled all the profile options functions and menus. But now I am stuck at a point I am unable to create a layout whenever I choose my custom integrator and then tries to create a layout I get the following error:
No columns have been defined in the column list.
Once this can be resovled then I can fo for column mapping and then test a custom load. Can anybody please let me know what am I missing here after following each procedures.
Your inputs are appreciated. I am in great need of your suggestions pretty urgently
Thanks and Regards
Keshava

Hi,
The answer to your query is 'Yes'. You need to design a 'UPDATE' metadata type custom integrator. The custom integrator shall use a parameter based view to first download data and then use a PL/SQL wrapper/API to re-upload it back. The brief steps are listed below:
1. Create a 'UPDATE' metadata type custom integrator. Give a parameter list name, std/custom view for data download and a PL/SQL wrapper.
2. Create a form function and associate the form function with the custom integrator created.
3. Add the form function to the std WebADI menu for access.
4. Define a layout for the custom integrator defined.
4. To create a parameter use the standard integrator 'HR Standalone Query'. As a part of this integrator you can define the SQL WHERE clause (parameter based) that you will like to use with the custom/std view defined in the custom integrator definition.
Note: You can use a max of 5 parameters only. For each parameter, one needs to define the datatype and also the HR standalone query has a size limitation of 2000 chars in 11i10. You increase this length you may apply patch - 3494588 to get 4000 chars.
Hope this information helps.
Thanks,
Nitin jain

Use one value of multi value parameter in dataset query

I have a parameter @Period that is populated with posting periods from our financial system (e.g. 201301, 201302, 201303, etc.). It is set as a multi value parameter to allow users to choose multiple posting periods. This parameter
is used in my main dataset. If the user chooses 201301 and 201302, I want to choose the greatest value chosen and use it in a where clause such that MyPostPeriod <= @Period. Since @Period is a multivalue, the ><= won't work.
I read that SSRS just passes this as a comma separated value (201301,201302). How do I find the greatest value in the list and how do I use that in my where clause?
the user is selecting projects with activity during the posting period but then I want to grab all costs and invoices since the project was created. They choose to see activity in 201301 and 201302 but I need to get all invoices and costs <= 201302.
The only option I have been able to come up with is to have two parameters - one for start period and one for end period. Any better solutions? I'm not using stored procedures.
Milissa Hartwell

Hi Milissa,
Based on your description, you want to get the Maximum value from a multi-value parameter. We can insert the selected values into a temp table and get the Maximum values. Suppose we have main dataset (DataSet1) include Period field, and a parameter Period
in the report. Please refer to the following steps:
Create another dataset named DataSet2 using the query below.
CREATE TABLE #Max (COL1 INT)
INSERT INTO #Max Values(1)
SELECT * FROM #Max
Double click DataSet2, change the dataset using the expression below:
="CREATE TABLE #Max (COL1 INT)" &
"INSERT INTO #Max VALUES (" & Join(Parameters! Period.Value,"),(") &")" &
"SELECT TOP 1 * FROM #Max ORDER BY COL1 DESC"
Create a parameter (Max) set the Data Type to “Integer”, and get the available values and default values from the DataSet2 COL1. Then, set the visibility to “Hidden”.
Double click the DataSet1, click Filters in the left pane. Fill with following values:
Expression: [Period]
Operator: <=
Value: [@Max]
Please refer to the following screenshot:
Regards,
Alisa Tang
Alisa Tang
TechNet Community Support

Selecting a one row from the database is not working

Hi all I am having a small problem with getting a row from my database to show up. Here is the code for the search that I want to do
String item; String columnName; String result; columnName = (String)searchBox.getSelectedItem(); item = searchField.getText().trim(); String tableName = "employee"; if(item == null || item.equals("")){ System.out.println("No Text entered"); }else{ try { result = sql.retrieve_From_Database(columnName, tableName, item); System.out.println(result); } catch (SQLException e1) { sql.displayErrors(e1); }
Here is the code for the retrieve_From_Database function.
protected String retrieve_From_Database(String columnName, String tableName, String item) throws SQLException{ ResultSet rs = null; Statement sm = null; sm = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); rs = sm.executeQuery("select * from " + tableName + " where " + columnName + " = " + item); result = rs.getString(columnName); if(result == null){ System.out.println("Error in retrieve"); return new String("No results in DB"); }else{ System.out.println(result); return result; } }
When I run the first code I get an error of SQL Exception: Unknown column 'anthony' in 'where clause'. But yet when I run the query of
Select * from employee where FirstName = 'anthony'
within the mysql commandline I get the proper result. So my question is why when running this in the command line do I get the proper result but when running the code I do not?

jo**** wrote:
Hi. The problem is clear in the original post. The OP is trying to use PreparedStatement
parameters to fill out general portions of the SQL query, instead of only data values.
He is hoping to put in a column name. That will never work. Only data values are settable.
HTH,
Joe WeinsteinActually, no. There's no PreparedStatement there at all. It appears that his problem is that, while the working query entered directly in the client is
Select * from employee where FirstName = 'anthony'the query he's constructing in his code is
Select * from employee where FirstName = anthonySince there are no quotes around anthony, it's treated as a column name.
If he had properly used PreparedStatment as suggested in reply 1, that would not be an issue. My guess, however, is that when he claims he's using PS, it's as Tolls suggested a couple of posts ago--he's simply replacing the Statement with a PreparedStatement, but not using the parameters as suggested.
The wrong thing for OP to do at this point is see my above comment about the quotes and explicitly add them in the query string. The right thing to do, of course, is to actually use PS's parameters.
Edited by: jverd on Oct 11, 2010 10:08 AM

91-Object variable or With block variable not set

Hi
Is there a limit to the number of parameters in a RowKeyRange ?, the following works correctly until I add the final H130:I131.
=EVRNG(H19:I20,H22:I28,H30:I31,H37:I43,H49:I54,H60:I64,H70:I74,H80:I81,H83:I89,H95:I97,H103:I105,H111:I113,H119:I120,H130:I131)
Thanks in adavance for your help.
Kind Regards
Gav

Hi,
My idea is that you can have a max of 30 parameters to the function. Please refer to the below link from help.sap:
http://help.sap.com/saphelp_bpc75/helpdata/en/ed/2ad59fca5a4e879f359e5152a2fe2a/content.htm
I am guessing the problem is something else, here. What happens if you keep the last range as H121:I122?

Finding custom prices for customer based on district (abap-query).

Hello.
I can find in table A601-BZIRK the District-number, which i also can find on the customer in BP in CRM (we have both CRM and ERP).
I want to make a query in SQ02, where i enter the customer-number, and gets the list of materials they have custom prices for, based on the district number.
Sorry bad english. Tell me if there is something more you need to know
Points will be awarded.
Thanks.

Hi,
The answer to your query is 'Yes'. You need to design a 'UPDATE' metadata type custom integrator. The custom integrator shall use a parameter based view to first download data and then use a PL/SQL wrapper/API to re-upload it back. The brief steps are listed below:
1. Create a 'UPDATE' metadata type custom integrator. Give a parameter list name, std/custom view for data download and a PL/SQL wrapper.
2. Create a form function and associate the form function with the custom integrator created.
3. Add the form function to the std WebADI menu for access.
4. Define a layout for the custom integrator defined.
4. To create a parameter use the standard integrator 'HR Standalone Query'. As a part of this integrator you can define the SQL WHERE clause (parameter based) that you will like to use with the custom/std view defined in the custom integrator definition.
Note: You can use a max of 5 parameters only. For each parameter, one needs to define the datatype and also the HR standalone query has a size limitation of 2000 chars in 11i10. You increase this length you may apply patch - 3494588 to get 4000 chars.
Hope this information helps.
Thanks,
Nitin jain

Max # of PreparedStatement parameters?

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