122 lines
3.3 KiB
JavaScript
122 lines
3.3 KiB
JavaScript
/* Copyright (c) 2015, 2022, 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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* dbmsoutputpipe.js
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*
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* DESCRIPTION
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* Displays PL/SQL DBMS_OUTPUT using a pipelined table.
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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 fs = require('fs');
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const oracledb = require('oracledb');
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const dbConfig = require('./dbconfig.js');
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// On Windows and macOS, you can specify the directory containing the Oracle
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// Client Libraries at runtime, or before Node.js starts. On other platforms
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// the system library search path must always be set before Node.js is started.
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// See the node-oracledb installation documentation.
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// If the search path is not correct, you will get a DPI-1047 error.
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let libPath;
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if (process.platform === 'win32') { // Windows
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libPath = 'C:\\oracle\\instantclient_19_12';
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} else if (process.platform === 'darwin') { // macOS
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libPath = process.env.HOME + '/Downloads/instantclient_19_8';
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}
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if (libPath && fs.existsSync(libPath)) {
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oracledb.initOracleClient({ libDir: libPath });
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}
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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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`CREATE OR REPLACE TYPE no_dorow AS TABLE OF VARCHAR2(32767)`,
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`CREATE OR REPLACE FUNCTION no_dofetch RETURN no_dorow PIPELINED IS
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line VARCHAR2(32767);
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status INTEGER;
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BEGIN LOOP
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DBMS_OUTPUT.GET_LINE(line, status);
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EXIT WHEN status = 1;
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PIPE ROW (line);
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END LOOP;
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END;`
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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 DBMS_OUTPUT
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//
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await connection.execute(
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`BEGIN
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DBMS_OUTPUT.ENABLE(NULL);
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END;`);
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await connection.execute(
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`BEGIN
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DBMS_OUTPUT.PUT_LINE('Hello, Oracle!');
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DBMS_OUTPUT.PUT_LINE('Hello, Node!');
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END;`);
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const result = await connection.execute(
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`SELECT * FROM TABLE(no_dofetch())`);
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console.log(result.rows);
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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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