116 lines
3.7 KiB
JavaScript
116 lines
3.7 KiB
JavaScript
/* Copyright (c) 2015, 2023, 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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* plsqlfunc.js
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*
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* DESCRIPTION
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* Shows how to call a PL/SQL function.
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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' && process.arch === 'x64')) {
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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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let connection;
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try {
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connection = await oracledb.getConnection(dbConfig);
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// Create a PL/SQL stored procedure
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await connection.execute(
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`CREATE OR REPLACE FUNCTION no_func
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(p1_in IN VARCHAR2, p2_in IN VARCHAR2, p3_out OUT NUMBER) RETURN VARCHAR2
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AS
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BEGIN
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p3_out := 123;
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RETURN p1_in || ' ' || p2_in;
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END;`
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);
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// Invoke the PL/SQL function.
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//
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// The equivalent call with PL/SQL named parameter syntax is:
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// `BEGIN
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// :ret := no_func(p1_in => :p1, p2_in => :p2, p3_out => :p3);
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// END;`
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const result = await connection.execute(
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`BEGIN
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:ret := no_func(:p1, :p2, :p3);
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END;`,
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{
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p1: 'Chris', // Bind type is determined from the data. Default direction is BIND_IN.
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p2: 'Jones',
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p3: { dir: oracledb.BIND_OUT, type: oracledb.NUMBER },
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ret: { dir: oracledb.BIND_OUT, type: oracledb.STRING, maxSize: 40 }
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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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