Columns in the ResultSet returned by getProcedureColumns are as described by the API. Further details for some specific columns:

• PROCEDURE_CAT

  always "null" in Derby

• PROCEDURE_SCHEM

  schema for a Java procedure

• PROCEDURE_NAME

  the name of the procedure

• COLUMN_NAME

  the name of the parameter (see column-Name-Pattern)

• COLUMN_TYPE

  short indicating what the row describes. Always is DatabaseMetaData.procedureColumnIn for method parameters, unless the parameter is an array. If so, it is DatabaseMetaData.procedureColumnInOut. It always returns DatabaseMetaData.procedureColumnReturn for return values.

• TYPE_NAME

  Derby-specific name for the type.

• NULLABLE

  always returns DatabaseMetaData.procedureNoNulls for primitive parameters and DatabaseMetaData.procedureNullable for object parameters

• REMARKS

  a String describing the java type of the method parameter

• METHOD_ID

  a Derby-specific column.