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Oracle Stored Procedure Problem...

Vijay S. Rathore
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I am using an oracle driver to connect to Oracle8.1.7 database. I am able to connect to a table, but when I try to connect to stored procedure, it always throws error.
The code that I am using to connect to table is
DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
con = DriverManager.getConnection("jdbc racle:thin:@sfddb:1527 EV", "ID", "PWD");
This code works to connect to table :
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("select * from PO.PO_HEADER ");

But this code fails :
CallableStatement cstmt = con.prepareCall("{? = call PO.WFC_GETPO(?)}");
cstmt.registerOutParameter(1, OracleTypes.VARCHAR);
cstmt.setInt(2, 222);

Well I have already tried different combination of values to call this stored procedure.
The stored procedure takes and In parameter as PO Number and returns true or false as boolean value. We are able to call this stored procedure from some other external sources.
Are we missing some setting before calling stored procedure?
Well you can consider me a novice in Java Oracle connection with stored procedure. And I have already studied the stored procedure samples available on Oracle site.
Will appreciate any help

Avi Abrami
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Posts: 1141
Java Oracle
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Hi Vijay,
I assume you are unfamiliar with the following excerpt from the "Oracle 8i JDBC Developer's Guide and Reference"

It is not feasible for Oracle JDBC drivers to support calling arguments or return values of the PL/ SQL RECORD, BOOLEAN, or table with non-scalar element types.

Hopefully, this explains the behaviour you are seeing.
Good Luck,
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