使用 JdbcTemplate 将 Java 数组传递给 ORACLE 存储过程

Question

I am trying to pass Integer Array to Oracle Stored Procedure.

This is my oracle side:

-- Package Declaration
TYPE num_array IS TABLE OF NUMBER;

PROCEDURE test_arrays(p_array IN num_array);

-- Package Body
PROCEDURE test_arrays(p_array IN num_array)
    IS
    BEGIN
        FOR i IN 1 .. p_array.count
        LOOP
            INSERT INTO GENERAL.TEST_ARRAYS VALUES (p_array(i));
        END LOOP;
        
    END;

So simple. Now I need to pass an integer array from the database. This is my code:

public void testArrays() {
        int[] intArray = new int[100];
        for(int i=0; i<100; i++) {
            intArray[i] = i;
        }
        
        SimpleJdbcCall simpleJdbcCall = new SimpleJdbcCall(this.jdbcTemplate)
                .withSchemaName("general")
                .withCatalogName("sms_package")
                .withProcedureName("test_arrays");

        SqlParameterSource parameterSource = new MapSqlParameterSource()
                .addValue("p_array", intArray, Types.ARRAY);

        simpleJdbcCall.execute(parameterSource);
    }

this throws an invalid column type.

After a little research I saw that I need to create some array descriptors, I tried some codes:

SqlTypeValue pvCodScg = new AbstractSqlTypeValue() {
            protected Object createTypeValue(Connection conn, int sqlType, String typeName) throws SQLException {
                ArrayDescriptor arrayDescriptor = new ArrayDescriptor(typeName, conn);
                return new ARRAY(arrayDescriptor, conn, intArray);
            }
};

and passed it as a:

SqlParameterSource parameterSource = new MapSqlParameterSource()
                .addValue("p_array", pvCodScg);

but this still doesn't work. Any help would be appreciated.

Thanks

Answer 1

What do you pass as "typeName"? It must be a known ORACLE type of the target schema: either something like SYS.ODCIVARCHAR2LIST, ... or a TYPE you defined (eg a TABLE OF...) so in your case probably "NUM_ARRAY". (NB you could have used SYS.ODCINUMBERLIST) (I don't remember if passing lowercase works, so I prefer to always use UPPERCASE) NB when using directly JDBC, there is a PreparedSteament.setArray function, not sure MapSqlParameters is doing the right thing with a SqlTypeValue because I saw it's testing "instanceof SqlParameterValue".