node-oracledb/examples/plsqlproc.js

114 lines
3.6 KiB
JavaScript

/* Copyright (c) 2015, 2023, Oracle and/or its affiliates. */
/******************************************************************************
*
* This software is dual-licensed to you under the Universal Permissive License
* (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
* 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
* either license.
*
* If you elect to accept the software under the Apache License, Version 2.0,
* the following applies:
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* NAME
* plsqlproc.js
*
* DESCRIPTION
* Show calling a PL/SQL procedure and binding parameters in various ways.
*
*****************************************************************************/
'use strict';
Error.stackTraceLimit = 50;
const oracledb = require('oracledb');
const dbConfig = require('./dbconfig.js');
// This example runs in both node-oracledb Thin and Thick modes.
//
// Optionally run in node-oracledb Thick mode
if (process.env.NODE_ORACLEDB_DRIVER_MODE === 'thick') {
// Thick mode requires Oracle Client or Oracle Instant Client libraries.
// On Windows and macOS Intel you can specify the directory containing the
// libraries at runtime or before Node.js starts. On other platforms (where
// Oracle libraries are available) the system library search path must always
// include the Oracle library path before Node.js starts. If the search path
// is not correct, you will get a DPI-1047 error. See the node-oracledb
// installation documentation.
let clientOpts = {};
if (process.platform === 'win32') { // Windows
clientOpts = { libDir: 'C:\\oracle\\instantclient_19_17' };
} else if (process.platform === 'darwin' && process.arch === 'x64') { // macOS Intel
clientOpts = { libDir: process.env.HOME + '/Downloads/instantclient_19_8' };
}
oracledb.initOracleClient(clientOpts); // enable node-oracledb Thick mode
}
async function run() {
let connection;
try {
connection = await oracledb.getConnection(dbConfig);
// Create a PL/SQL stored procedure
await connection.execute(
`CREATE OR REPLACE PROCEDURE no_proc
(p_in IN VARCHAR2, p_inout IN OUT VARCHAR2, p_out OUT NUMBER)
AS
BEGIN
p_inout := p_in || p_inout;
p_out := 101;
END;`
);
// Invoke the PL/SQL stored procedure.
//
// The equivalent call with PL/SQL named parameter syntax is:
// `BEGIN
// no_proc(p_in => :i, p_inout => :io, p_out => :o);
// END;`
const result = await connection.execute(
`BEGIN
no_proc(:i, :io, :o);
END;`,
{
i: 'Chris', // Bind type is determined from the data. Default direction is BIND_IN
io: { val: 'Jones', dir: oracledb.BIND_INOUT },
o: { type: oracledb.NUMBER, dir: oracledb.BIND_OUT }
}
);
console.log(result.outBinds);
} catch (err) {
console.error(err);
} finally {
if (connection) {
try {
await connection.close();
} catch (err) {
console.error(err);
}
}
}
}
run();