135 lines
4.1 KiB
JavaScript
135 lines
4.1 KiB
JavaScript
/* Copyright (c) 2025, Oracle and/or its affiliates. */
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/******************************************************************************
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*
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* This software is dual-licensed to you under the Universal Permissive License
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* (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
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* 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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* either license.
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*
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* If you elect to accept the software under the Apache License, Version 2.0,
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* the following applies:
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* NAME
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* nesteddbobject.js
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*
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* DESCRIPTION
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* Shows binding of nested DbObject types
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*
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*****************************************************************************/
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'use strict';
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Error.stackTraceLimit = 50;
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const oracledb = require('oracledb');
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const dbConfig = require('./dbconfig.js');
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// This example runs in both node-oracledb Thin and Thick modes.
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//
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// Optionally run in node-oracledb Thick mode
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if (process.env.NODE_ORACLEDB_DRIVER_MODE === 'thick') {
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// Thick mode requires Oracle Client or Oracle Instant Client libraries.
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// On Windows and macOS Intel you can specify the directory containing the
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// libraries at runtime or before Node.js starts. On other platforms (where
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// Oracle libraries are available) the system library search path must always
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// include the Oracle library path before Node.js starts. If the search path
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// is not correct, you will get a DPI-1047 error. See the node-oracledb
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// installation documentation.
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let clientOpts = {};
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// On Windows and macOS Intel platforms, set the environment
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// variable NODE_ORACLEDB_CLIENT_LIB_DIR to the Oracle Client library path
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if (process.platform === 'win32' || process.platform === 'darwin') {
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clientOpts = { libDir: process.env.NODE_ORACLEDB_CLIENT_LIB_DIR };
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}
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oracledb.initOracleClient(clientOpts); // enable node-oracledb Thick mode
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}
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console.log(oracledb.thin ? 'Running in thin mode' : 'Running in thick mode');
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async function run() {
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const conn = await oracledb.getConnection(dbConfig);
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const stmts = [
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`drop table my_shapes purge`,
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`drop type shape_type`,
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`drop type point_type`
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];
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for (const s of stmts) {
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try {
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await conn.execute(s);
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} catch (e) {
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if (e.errorNum != 942 && e.errorNum != 4043)
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throw (e);
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}
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}
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// CREATE TYPES
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let result = await conn.execute(
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`CREATE TYPE point_type AS OBJECT (
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x NUMBER,
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y NUMBER
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)`
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);
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conn.commit();
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result = await conn.execute(
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`CREATE TYPE shape_type AS OBJECT (
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name VARCHAR2(50),
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point point_type
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)`
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);
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conn.commit();
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// CREATE TABLE
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result = await conn.execute(
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`CREATE TABLE my_shapes(id NUMBER, shape SHAPE_TYPE)`
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);
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conn.commit();
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// Define the shape type and values
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const shapeType = await conn.getDbObjectClass('SHAPE_TYPE');
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const pointType = await conn.getDbObjectClass('POINT_TYPE');
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// The attributes of the DbObject type must always be specified in upper
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// case
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const point = new pointType({ X: 10, Y: 20 });
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const shape = new shapeType({ NAME: 'My Shape', POINT: point });
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// Insert the value using an IN BIND
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result = await conn.execute(
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`INSERT INTO my_shapes (id, shape) VALUES (:id, :shape)`,
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{ id: 1, shape: shape }
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);
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conn.commit();
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console.log('Rows inserted:', result.rowsAffected);
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// Select the value from the table
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result = await conn.execute(
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`SELECT shape FROM my_shapes WHERE id = :id`,
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{ id: 1 }
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);
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// Print the value
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console.log('The shape object is:');
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console.log(JSON.stringify(result.rows[0][0]));
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await conn.close();
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}
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run();
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