103 lines
2.5 KiB
JavaScript
103 lines
2.5 KiB
JavaScript
/* Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved. */
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/******************************************************************************
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*
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* You may not use the identified files except in compliance with the Apache
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* License, Version 2.0 (the "License.")
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*
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* You may obtain a copy of the License at
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* http://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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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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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* dmlrupd2.js
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*
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* DESCRIPTION
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* Example of 'DML Returning' with multiple rows matched.
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* The ROWIDs of the changed records are returned. This is how to get
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* the 'last insert id'.
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*
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* This example uses Node 8's async/await syntax.
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*
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*****************************************************************************/
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const oracledb = require('oracledb');
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const dbConfig = require('./dbconfig.js');
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async function run() {
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let connection;
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try {
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connection = await oracledb.getConnection(dbConfig);
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//
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// Setup
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//
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const stmts = [
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`DROP TABLE no_dmlrupdtab`,
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`CREATE TABLE no_dmlrupdtab (id NUMBER, name VARCHAR2(40))`,
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`INSERT INTO no_dmlrupdtab VALUES (1001, 'Venkat')`,
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`INSERT INTO no_dmlrupdtab VALUES (1002, 'Neeharika')`
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];
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for (const s of stmts) {
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try {
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await connection.execute(s);
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} catch (e) {
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if (e.errorNum != 942)
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console.error(e);
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}
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}
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//
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// Show DML Returning
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//
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// SQL statement.
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// Note bind names cannot be reused in the DML section and the RETURNING section
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const sql =
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`UPDATE no_dmlrupdtab
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SET name = :name
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WHERE id IN (:id1, :id2)
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RETURNING id, ROWID INTO :ids, :rids`;
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const result = await connection.execute(
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sql,
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{
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id1: 1001,
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id2: 1002,
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name: "Chris",
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ids: { type: oracledb.NUMBER, dir: oracledb.BIND_OUT },
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rids: { type: oracledb.STRING, dir: oracledb.BIND_OUT }
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},
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{ autoCommit: true }
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);
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console.log(result.outBinds);
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} catch (err) {
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console.error(err);
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} finally {
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if (connection) {
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try {
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await connection.close();
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} catch (err) {
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console.error(err);
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}
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}
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}
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}
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run();
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