2022-05-17 11:09:34 +08:00
|
|
|
/* Copyright (c) 2018, 2022, Oracle and/or its affiliates. */
|
2018-09-26 16:02:52 +08:00
|
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
*
|
2023-02-21 09:43:43 +08:00
|
|
|
* 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.
|
2018-09-26 16:02:52 +08:00
|
|
|
*
|
2023-02-21 09:43:43 +08:00
|
|
|
* 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.
|
2018-09-26 16:02:52 +08:00
|
|
|
* You may obtain a copy of the License at
|
|
|
|
*
|
2023-02-21 09:43:43 +08:00
|
|
|
* https://www.apache.org/licenses/LICENSE-2.0
|
2018-09-26 16:02:52 +08:00
|
|
|
*
|
2023-02-21 09:43:43 +08:00
|
|
|
* 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.
|
2018-09-26 16:02:52 +08:00
|
|
|
* See the License for the specific language governing permissions and
|
|
|
|
* limitations under the License.
|
|
|
|
*
|
|
|
|
* NAME
|
|
|
|
* example.js
|
|
|
|
*
|
|
|
|
* DESCRIPTION
|
|
|
|
* A basic node-oracledb example using Node.js 8's async/await syntax.
|
|
|
|
*
|
2020-07-30 13:55:36 +08:00
|
|
|
* For connection pool examples see connectionpool.js and webapp.js
|
2019-11-19 10:26:03 +08:00
|
|
|
* For a ResultSet example see resultset1.js
|
2018-09-26 16:02:52 +08:00
|
|
|
* For a query stream example see selectstream.js
|
|
|
|
*
|
2020-11-16 11:58:07 +08:00
|
|
|
* This example requires node-oracledb 5 or later.
|
2019-01-11 05:54:26 +08:00
|
|
|
*
|
2018-09-26 16:02:52 +08:00
|
|
|
*****************************************************************************/
|
|
|
|
|
2019-01-11 05:55:31 +08:00
|
|
|
// Using a fixed Oracle time zone helps avoid machine and deployment differences
|
|
|
|
process.env.ORA_SDTZ = 'UTC';
|
|
|
|
|
2021-10-17 14:22:29 +08:00
|
|
|
const fs = require('fs');
|
2019-03-21 05:22:13 +08:00
|
|
|
const oracledb = require('oracledb');
|
|
|
|
const dbConfig = require('./dbconfig.js');
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2020-11-16 11:56:33 +08:00
|
|
|
// On Windows and macOS, you can specify the directory containing the Oracle
|
|
|
|
// Client Libraries at runtime, or before Node.js starts. On other platforms
|
|
|
|
// the system library search path must always be set before Node.js is started.
|
|
|
|
// See the node-oracledb installation documentation.
|
|
|
|
// If the search path is not correct, you will get a DPI-1047 error.
|
2021-10-17 14:22:29 +08:00
|
|
|
let libPath;
|
|
|
|
if (process.platform === 'win32') { // Windows
|
|
|
|
libPath = 'C:\\oracle\\instantclient_19_12';
|
|
|
|
} else if (process.platform === 'darwin') { // macOS
|
|
|
|
libPath = process.env.HOME + '/Downloads/instantclient_19_8';
|
|
|
|
}
|
|
|
|
if (libPath && fs.existsSync(libPath)) {
|
|
|
|
oracledb.initOracleClient({ libDir: libPath });
|
2021-05-20 14:47:23 +08:00
|
|
|
}
|
2020-06-03 12:14:49 +08:00
|
|
|
|
2018-09-26 16:02:52 +08:00
|
|
|
async function run() {
|
|
|
|
let connection;
|
|
|
|
|
|
|
|
try {
|
|
|
|
|
|
|
|
let sql, binds, options, result;
|
|
|
|
|
2019-05-28 19:48:26 +08:00
|
|
|
connection = await oracledb.getConnection(dbConfig);
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
//
|
2018-09-26 16:02:52 +08:00
|
|
|
// Create a table
|
2019-11-19 10:26:03 +08:00
|
|
|
//
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
const stmts = [
|
|
|
|
`DROP TABLE no_example`,
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
`CREATE TABLE no_example (id NUMBER, data VARCHAR2(20))`
|
|
|
|
];
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
for (const s of stmts) {
|
|
|
|
try {
|
|
|
|
await connection.execute(s);
|
2021-04-01 12:48:37 +08:00
|
|
|
} catch (e) {
|
2019-11-19 10:26:03 +08:00
|
|
|
if (e.errorNum != 942)
|
|
|
|
console.error(e);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Insert three rows
|
|
|
|
//
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
sql = `INSERT INTO no_example VALUES (:1, :2)`;
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
binds = [
|
|
|
|
[101, "Alpha" ],
|
|
|
|
[102, "Beta" ],
|
|
|
|
[103, "Gamma" ]
|
|
|
|
];
|
2018-09-26 16:02:52 +08:00
|
|
|
|
|
|
|
// For a complete list of options see the documentation.
|
|
|
|
options = {
|
|
|
|
autoCommit: true,
|
|
|
|
// batchErrors: true, // continue processing even if there are data errors
|
|
|
|
bindDefs: [
|
|
|
|
{ type: oracledb.NUMBER },
|
|
|
|
{ type: oracledb.STRING, maxSize: 20 }
|
|
|
|
]
|
|
|
|
};
|
|
|
|
|
|
|
|
result = await connection.executeMany(sql, binds, options);
|
|
|
|
|
|
|
|
console.log("Number of rows inserted:", result.rowsAffected);
|
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
//
|
2018-09-26 16:02:52 +08:00
|
|
|
// Query the data
|
2019-11-19 10:26:03 +08:00
|
|
|
//
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
sql = `SELECT * FROM no_example`;
|
2018-09-26 16:02:52 +08:00
|
|
|
|
|
|
|
binds = {};
|
|
|
|
|
|
|
|
// For a complete list of options see the documentation.
|
|
|
|
options = {
|
2020-06-13 06:16:36 +08:00
|
|
|
outFormat: oracledb.OUT_FORMAT_OBJECT, // query result format
|
|
|
|
// extendedMetaData: true, // get extra metadata
|
|
|
|
// prefetchRows: 100, // internal buffer allocation size for tuning
|
|
|
|
// fetchArraySize: 100 // internal buffer allocation size for tuning
|
2018-09-26 16:02:52 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
result = await connection.execute(sql, binds, options);
|
|
|
|
|
2020-02-29 06:34:53 +08:00
|
|
|
console.log("Metadata: ");
|
|
|
|
console.dir(result.metaData, { depth: null });
|
2018-09-26 16:02:52 +08:00
|
|
|
console.log("Query results: ");
|
2020-02-29 06:34:53 +08:00
|
|
|
console.dir(result.rows, { depth: null });
|
2018-09-26 16:02:52 +08:00
|
|
|
|
2019-11-19 10:26:03 +08:00
|
|
|
//
|
2019-01-11 05:55:31 +08:00
|
|
|
// Show the date. The value of ORA_SDTZ affects the output
|
2019-11-19 10:26:03 +08:00
|
|
|
//
|
2019-01-11 05:55:31 +08:00
|
|
|
|
|
|
|
sql = `SELECT TO_CHAR(CURRENT_DATE, 'DD-Mon-YYYY HH24:MI') AS CD FROM DUAL`;
|
|
|
|
result = await connection.execute(sql, binds, options);
|
|
|
|
console.log("Current date query results: ");
|
|
|
|
console.log(result.rows[0]['CD']);
|
|
|
|
|
2018-09-26 16:02:52 +08:00
|
|
|
} catch (err) {
|
|
|
|
console.error(err);
|
|
|
|
} finally {
|
|
|
|
if (connection) {
|
|
|
|
try {
|
|
|
|
await connection.close();
|
|
|
|
} catch (err) {
|
|
|
|
console.error(err);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
run();
|