calling a function from oracle in C# giving error -


i calling function oracle package return string below

using(oracleconnection con = appconn.connection) {     oraclecommand cmd = con.createcommand();     cmd.commandtype = commandtype.storedprocedure;     cmd.connection = con;     cmd.commandtext = "select p_pkg.found(@p_id) dual";     oracleparameter p_id = new oracleparameter();     p_id.oracledbtype = oracledbtype.int64;     p_id.direction = parameterdirection.input;     p_id.value = requestheader.approval_id;      cmd.parameters.add(p_id);     try     {         con.open();         string found = cmd.executescalar().tostring();      }     catch(exception ex)     {      }         {         con.close();     } }

but getting below error . can't find problem after lot of search. please help.

ora-06550: line 1, column 51:

pl/sql: ora-00936: missing expression

ora-06550: line 1, column 7:

function signature in oracle

p_pkg.found(p_id in number)  return varchar2 //(yes , no)

i run oracle below , got result out error

select p_pkg.found(1053) dual

the problem lies in use of sql server specific prefix parameters / bind variables. oracle uses : instead of @. sql parser doesn't understand query now.

use code instead:

select p_pkg.found(:p_id) dual

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