Calling stored procedure from groovy using GString variation - sql

Question

In groovy tutorial: http://groovy.codehaus.org/Database+features
there is section about procedure. When I try this example:
The same example again but with a GString variation:
def first = 'Sam'
sql.call("{$Sql.VARCHAR = call FullName($first)}") { name ->
assert name == 'Sam Pullara'
}
I got exception:
Chyba: ORA-06550: line 1, column 13:
PLS-00222: no function with name 'FULLNAME' exists in this scope
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
java.sql.SQLException: ORA-06550: line 1, column 13:
PLS-00222: no function with name 'FULLNAME' exists in this scope
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:113)
yes that is true what exception says because I got just procedure FULLNAME what I want to call not function. Is this tutorial still actual ?

Answer 1

In Oracle, a stored procedure cannot return a value and a function can return a value. This is why you get that error. You can verify using my testing stored procedure and groovy code...
CREATE OR REPLACE PROCEDURE test_procedure
( string_in IN OUT VARCHAR2 ) IS
BEGIN
string_in := 'hi ' || string_in ;
END;
import groovy.sql.Sql
Sql sql = Sql.newInstance("jdbc:oracle:thin:#hostname:1521:dbname", username","password","oracle.jdbc.driver.OracleDriver")
def first="Wade"
sql.call '{call test_procedure(?)}',
[Sql.inout(Sql.VARCHAR(first))],
{ test ->
println ">>" + test + "<<"; // >>hi Wade<<
}

Answer 2

import groovy.sql.Sql
import oracle.jdbc.driver.OracleTypes
Sql sql = Sql.newInstance("jdbc:oracle:thin:#hostname:1521:dbname", "username","password","oracle.jdbc.driver.OracleDriver")
dept_id = 50
sql.call('{? = call FullName(?)}', [Sql.VARCHAR, 'Sam']) { name->
println name
}