databasemetadata.java

gcc的组建

   * <li>TABLE_CAT - The catalog the table is in, which may be <code>null</code>.</li>
   * <li>TABLE_SCHEM - The schema the table is in, which may be <code>null</code>.</li>
   * <li>TABLE_NAME - The name of the table.</li>
   * <li>TABLE_TYPE - A string describing the table type.  This will be one
   * of the values returned by the <code>getTableTypes()</code> method.</li>
   * <li>REMARKS - Comments about the table.</li>
   * </ol>
   * 
   * @param catalog The name of the catalog to return tables from,
   *        or "" to return tables from all catalogs.
   * @param schemaPattern A schema pattern for the schemas to return tables
   *        from, or "" to return tables from all schemas.
   * @param namePattern The pattern of table names to return.
   * @param types The list of table types to include; null returns all types.
   * @returns A <code>ResultSet</code> with all the requested tables.
   * @exception SQLException If an error occurs.
   */
  ResultSet getTables(String catalog, String schemaPattern, String
      tableNamePattern, String[] types) throws SQLException;

  /**
   * This method returns the list of database schemas as a 
   * <code>ResultSet</code>, with one column - TABLE_SCHEM - that is the
   * name of the schema.
   *
   * @return A <code>ResultSet</code> with all the requested schemas.
   * @exception SQLException If an error occurs.
   */
  ResultSet getSchemas() throws SQLException;

  /**
   * This method returns the list of database catalogs as a
   * <code>ResultSet</code> with one column - TABLE_CAT - that is the
   * name of the catalog.
   *
   * @return A <code>ResultSet</code> with all the requested catalogs.
   * @exception SQLException If an error occurs.
   */
  ResultSet getCatalogs() throws SQLException;

  /**
   * This method returns the list of database table types as a
   * <code>ResultSet</code> with one column - TABLE_TYPE - that is the
   * name of the table type.
   *
   * @return A <code>ResultSet</code> with all the requested table types.
   * @exception SQLException If an error occurs.
   */
  ResultSet getTableTypes() throws SQLException;

  /**
   * This method returns a list of the tables columns for
   * the requested tables.  This is returned in the form of a
   * <code>ResultSet</code> with the following columns:
   * <p>
   * <ol>
   * <li>TABLE_CAT - The catalog the table is in, which may be 
   * <code>null</code>.</li>
   * <li>TABLE_SCHEM - The schema the tables is in, which may be
   * <code>null</code>.</li>
   * <li>TABLE_NAME - The name of the table.</li>
   * <li>COLUMN_NAME - The name of the column</li>
   * <li>DATA_TYPE - The SQL type of the column. This is one of the constants
   * defined in <code>Types</code>.</li>
   * <li>TYPE_NAME - The string name of the data type for this column.</li>
   * <li>COLUMN_SIZE - The size of the column.</li>
   * <li>Unused</li>
   * <li>NUM_PREC_RADIX - The radix of the column.</li>
   * <li>NULLABLE - Whether or not the column is NULLABLE.  This is one of
   * the constants defined in this class (<code>tableNoNulls</code>,
   * <code>tableNullable</code>, or <code>tableNullableUnknown</code>)</li>
   * <li>REMARKS - A description of the column.</li>
   * <li>COLUMN_DEF - The default value for the column, may be <code>null</code>.</li>
   * <li>SQL_DATA_TYPE - Unused</li>
   * <li>SQL_DATETIME_SUB - Unused</li>
   * <li>CHAR_OCTET_LENGTH - For character columns, the maximum number of bytes
   * in the column.</li>
   * <li>ORDINAL_POSITION - The index of the column in the table.</li>
   * <li>IS_NULLABLE - "NO" means no, "YES" means maybe, and an empty string
   * means unknown.</li>
   * </ol>
   *
   * @param catalog The name of the catalog to return table from,
   * or "" to return tables from all catalogs.
   * @param schemaPattern A schema pattern for the schemas to return 
   * tables from, or "" to return tables from all schemas.
   * @param namePattern The pattern of tables names to return.
   * @param columnPattern The pattern of column names to return.
   * @returns A <code>ResultSet</code> with all the requested tables.
   * @exception SQLException If an error occurs.
   */
  ResultSet getColumns(String catalog, String schemaPattern, String
      tableNamePattern, String columnNamePattern) throws SQLException;

  /**
   * This method returns the access rights that have been granted to the
   * requested columns.  This information is returned as a <code>ResultSet</code>
   * with the following columns:
   *
   * <ol>
   * <li>TABLE_CAT - The catalog the table is in, which may be 
   * <code>null</code>.</li>
   * <li>TABLE_SCHEM - The schema the tables is in, which may be
   * <code>null</code>.</li>
   * <li>TABLE_NAME - The name of the table.</li>
   * <li>COLUMN_NAME - The name of the column.</li>
   * <li>GRANTOR - The entity that granted the access.</li>
   * <li>GRANTEE - The entity granted the access.</li>
   * <li>PRIVILEGE - The name of the privilege granted.</li>
   * <li>IS_GRANTABLE - "YES" if the grantee can grant the privilege to
   * others, "NO" if not, and <code>null</code> if unknown.</li>
   * </ol>
   *
   * @param catalog The catalog to retrieve information from, or the empty string
   *        to return entities not associated with a catalog, or <code>null</code>
   *        to return information from all catalogs.
   * @param schema The schema to retrieve information from, or the empty string
   *        to return entities not associated with a schema.
   * @param table The table name to return information for.
   * @param columnPattern A pattern of column names to return information for.
   * @return A <code>ResultSet</code> with all the requested privileges.
   * @exception SQLException If an error occurs.
   */
  ResultSet getColumnPrivileges(String catalog, String schema, String
      table, String columnNamePattern) throws SQLException;

  /**
   * This method returns the access rights that have been granted to the
   * requested tables.  This information is returned as a <code>ResultSet</code>
   * with the following columns:
   *
   * <ol>
   * <li>TABLE_CAT - The catalog the table is in, which may be 
   * <code>null</code>.</li>
   * <li>TABLE_SCHEM - The schema the tables is in, which may be
   * <code>null</code>.</li>
   * <li>TABLE_NAME - The name of the table.</li>
   * <li>GRANTOR - The entity that granted the access.</li>
   * <li>GRANTEE - The entity granted the access.</li>
   * <li>PRIVILEGE - The name of the privilege granted.</li>
   * <li>IS_GRANTABLE - "YES" if the grantee can grant the privilege to
   * others, "NO" if not, and <code>null</code> if unknown.</li>
   * </ol>
   *
   * @param catalog The catalog to retrieve information from, or the empty string
   *        to return entities not associated with a catalog, or <code>null</code>
   *        to return information from all catalogs.
   * @param schema The schema to retrieve information from, or the empty string
   *        to return entities not associated with a schema.
   * @param tablePattern The table name pattern of tables to return 
   *        information for.
   * @return A <code>ResultSet</code> with all the requested privileges.
   * @exception SQLException If an error occurs.
   */
  ResultSet getTablePrivileges(String catalog, String schemaPattern,
      String tableNamePattern) throws SQLException;

  /**
   * This method returns the best set of columns for uniquely identifying
   * a row.  It returns this information as a <code>ResultSet</code> with
   * the following columns:
   *
   * <ol>
   * <li>SCOPE - The scope of the results returned.  This is one of the 
   * constants defined in this class (<code>bestRowTemporary</code>,
   * <code>bestRowTransaction</code>, or <code>bestRowSession</code>).</li>
   * <li>COLUMN_NAME - The name of the column.</li>
   * <li>DATA_TYPE - The SQL type of the column. This is one of the constants
   * defined in <code>Types</code>.</li>
   * <li>TYPE_NAME - The string name of the data type for this column.</li>
   * <li>COLUMN_SIZE - The precision of the columns</li>
   * <li>BUFFER_LENGTH - Unused</li>
   * <li>DECIMAL_DIGITS - The scale of the column.</li>
   * <li>PSEUDO_COLUMN - Whether or not the best row identifier is a
   * pseudo_column.  This is one of the constants defined in this class 
   * (<code>bestRowUnknown</code>, <code>bestRowNotPseudo</code>, or
   * <code>bestRowPseudo</code>).</li>
   * </ol>
   *
   * @param catalog The catalog to retrieve information from, or the empty string
   * to return entities not associated with a catalog, or <code>null</code>
   * to return information from all catalogs.
   * @param schema The schema to retrieve information from, or the empty string
   * to return entities not associated with a schema.
   * @param table The table name to return information for.
   * @param columnPattern A pattern of column names to return information for.
   * @param scope One of the best row id scope constants from this class.
   * @param nullable <code>true</code> to include columns that are nullable,
   * <code>false</code> otherwise.
   * @return A <code>ResultSet</code> with the best row identifier.
   * @exception SQLException If an error occurs.
   */
  ResultSet getBestRowIdentifier(String catalog, String schema,
    String table, int scope, boolean nullable) throws SQLException;

  /**
   * This method returns the set of columns that are automatically updated
   * when the row is update. It returns this information as a 
   * <code>ResultSet</code> with the following columns:
   *
   * <ol>
   * <li>SCOPE - Unused</li>
   * <li>COLUMN_NAME - The name of the column.</li>
   * <li>DATA_TYPE - The SQL type of the column. This is one of the constants
   * defined in <code>Types</code>.</li>
   * <li>TYPE_NAME - The string name of the data type for this column.</li>
   * <li>COLUMN_SIZE - The precision of the columns</li>
   * <li>BUFFER_LENGTH - Unused</li>
   * <li>DECIMAL_DIGITS - The scale of the column.</li>
   * <li>PSEUDO_COLUMN - Whether or not the best row identifier is a
   * pseudo_column.  This is one of the constants defined in this class 
   * (<code>versionRowUnknown</code>, <code>versionRowNotPseudo</code>, or
   * <code>versionRowPseudo</code>).</li>
   * </ol>
   *
   * @param catalog The catalog to retrieve information from, or the empty string
   *        to return entities not associated with a catalog, or <code>null</code>
   *        to return information from all catalogs.
   * @param schema The schema to retrieve information from, or the empty string
   *        to return entities not associated with a schema.
   * @param table The table name to return information for.
   * @param columnPattern A pattern of column names to return information for.
   * @return A <code>ResultSet</code> with the version columns.
   * @exception SQLException If an error occurs.
   */
  ResultSet getVersionColumns(String catalog, String schema,
    String table) throws SQLException;

  /**
   * This method returns a list of a table's primary key columns.  These
   * are returned as a <code>ResultSet</code> with the following columns.
   *
   * <ol>
   * <li>TABLE_CAT - The catalog of the table, which may be <code>null</code>.</li>
   * <li>TABLE_SCHEM - The schema of the table, which may be <code>null</code>.</li>
   * <li>TABLE_NAME - The name of the table.</li>
   * <li>COLUMN_NAME - The name of the column.</li>
   * <li>KEY_SEQ - The sequence number of the column within the primary key.</li>
   * <li>PK_NAME - The name of the primary key, which may be <code>null</code>.</li>
   * </ol>
   *
   * @param catalog The catalog to retrieve information from, or the empty string
   *        to return entities not associated with a catalog, or <code>null</code>
   *        to return information from all catalogs.
   * @param schema The schema to retrieve information from, or the empty string
   *        to return entities not associated with a schema.
   * @param table The table name to return information for.
   * @param columnPattern A pattern of column names to return information for.
   * @return A <code>ResultSet</code> with the primary key columns.
   * @exception SQLException If an error occurs.
   */
  ResultSet getPrimaryKeys(String catalog, String schema, String table)
      throws SQLException;

  /**
   * This method returns a list of the table's foreign keys.  These are
   * returned as a <code>ResultSet</code> with the following columns:
   *
   * <ol>
   * <li>PKTABLE_CAT - The catalog of the table the key was imported from.</li>
   * <li>PKTABLE_SCHEM - The schema of the table the key was imported from.</li>
   * <li>PKTABLE_NAME - The name of the table the key was imported from.</li>
   * <li>PKCOLUMN_NAME - The name of the column that was imported.</li>
   * <li>FKTABLE_CAT - The foreign key catalog name.</li>
   * <li>FKTABLE_SCHEM - The foreign key schema name.</li>
   * <li>FKTABLE_NAME - The foreign key table name.</li>
   * <li>FKCOLUMN_NAME - The foreign key column name.</li>
   * <li>KEY_SEQ - The sequence number of the column within the foreign key.</li>
   * <li>UPDATE_RULE - How the foreign key behaves when the primary key is
   * updated.  This is one of the constants defined in this class 
   * (<code>importedNoAction</code>, <code>importedKeyCascade</code>,
   * <code>importedKeySetNull</code>, <code>importedKeySetDefault</code>, or
   * <code>importedKeyRestrict</code>).</li>
   * <li>DELETE_RULE - How the foreign key behaves when the primary key is
   * deleted.  This is one of the constants defined in this class 
   * (<code>importedNoAction</code>, <code>importedKeyCascade</code>,
   * <code>importedKeySetNull</code>, or <code>importedKeySetDefault</code>)</li>
   * <li>FK_NAME - The name of the foreign key.</li>
   * <li>PK_NAME - The name of the primary key.</li>
   * <li>DEFERRABILITY - The deferrability value.  This is one of the
   * constants defined in this table (<code>importedKeyInitiallyDeferred</code>,
   * <code>importedKeyInitiallyImmediate</code>, or
   * <code>importedKeyNotDeferrable</code>).</li>
   * </ol>
   *
   * @param catalog The catalog to retrieve information from, or the empty string
   *        to return entities not associated with a catalog, or <code>null</code>
   *        to return information from all catalogs.
   * @param schema The schema to retrieve information from, or the empty string
   *        to return entities not associated with a schema.
   * @param table The table name to return information for.
   *
   * @return A <code>ResultSet</code> with the foreign key columns.
   *
   * @exception SQLException If an error occurs.
   */
  ResultSet getImportedKeys(String catalog, String schema,
    String table) throws SQLException;

  /**
   * This method returns a list of the table's which use this table's
   * primary key as a foreign key.  The information is
   * returned as a <code>ResultSet</code> with the following columns:
   *
   * <ol>
   * <li>PKTABLE_CAT - The catalog of the table the key was imported from.</li>
   * <li>PKTABLE_SCHEM - The schema of the table the key was imported from.</li>
   * <li>PKTABLE_NAME - The name of the table the key was imported from.</li>
   * <li>PKCOLUMN_NAME - The name of the column that was imported.</li>
   * <li>FKTABLE_CAT - The foreign key catalog name.</li>
   * <li>FKTABLE_SCHEM - The foreign key schema name.</li>
   * <li>FKTABLE_NAME - The foreign key table name.</li>
   * <li>FKCOLUMN_NAME - The foreign key column name.</li>
   * <li>KEY_SEQ - The sequence number of the column within the foreign key.</li>
   * <li>UPDATE_RULE - How the foreign key behaves when the primary key is
   * updated.  This is one of the constants defined in this class 
   * (<code>importedNoAction</code>, <code>importedKeyCascade</code>,
   * <code>importedKeySetNull</code>, <code>importedKeySetDefault</code>, or
   * <code>importedKeyRestrict</code>).</li>
   * <li>DELETE_RULE - How the foreign key behaves when the primary key is
   * deleted.  This is one of the constants defined in this class 
   * (<code>importedNoAction</code>, <code>importedKeyCascade</code>,
   * <code>importedKeySetNull</code>, or <code>importedKeySetDefault</code>)</li>
   * <li>FK_NAME - The name of the foreign key.</li>
   * <li>PK_NAME - The name of the primary key.</li>
   * <li>DEFERRABILITY - The deferrability value.  This is one of the
   * constants defined in this table (<code>importedKeyInitiallyDeferred</code>,
   * <code>importedKeyInitiallyImmediate</code>, or
   * <code>importedKeyNotDeferrable</code>).</li>
   * </ol>
   *
   * @param catalog The catalog to retrieve information from, or the empty string
   *        to return entities not associated with a catalog, or <code>null</code>
   *        to return information from all catalogs.
   * @param schema The schema to retrieve information from, or the empty string
   *        to return entities not associated with a schema.
   * @param table The table name to return information for.
   * @return A <code>ResultSet</code> with the requested information
   * @exception SQLException If an error occurs.
   */
  ResultSet getExportedKeys(String catalog, String schema,
    String table) throws SQLException;

  /**
   * This method returns a description of how one table imports another
   * table's primary key as a foreign key.  The information is
   * returned as a <code>ResultSet</code> with the following columns:
   *
   * <ol>
   * <li>PKTABLE_CAT - The catalog of the table the key was imported from.</li>
   * <li>PKTABLE_SCHEM - The schema of the table the key was imported from.</li>
   * <li>PKTABLE_NAME - The name of the table the key was imported from.</li>
   * <li>PKCOLUMN_NAME - The name of the column that was imported.</li>
   * <li>FKTABLE_CAT - The foreign key catalog name.</li>
   * <li>FKTABLE_SCHEM - The foreign key schema name.</li>
   * <li>FKTABLE_NAME - The foreign key table name.</li>
   * <li>FKCOLUMN_NAME - The foreign key column name.</li>
   * <li>KEY_SEQ - The sequence number of the column within the foreign key.</li>
   * <li>UPDATE_RULE - How the foreign key behaves when the primary key is
   * updated.  This is one of the constants defined in this class 
   * (<code>importedNoAction</code>, <code>importedKeyCascade</code>