node-oracledb/examples/plsqlrecord.js

140 lines
3.6 KiB
JavaScript

/* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. */
/******************************************************************************
*
* You may not use the identified files except in compliance with the Apache
* License, Version 2.0 (the "License.")
*
* You may obtain a copy of the License at
* http://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
* plsqlrecord.js
*
* DESCRIPTION
* Shows binding of PL/SQL RECORDS
*
* This example requires node-oracledb 4 or later.
*
* This example uses Node 8's async/await syntax.
*
*****************************************************************************/
'use strict';
const oracledb = require('oracledb');
const dbConfig = require('./dbconfig.js');
async function run() {
let connection, binds, options, result, obj;
// The PL/SQL that is called in each example
const plsql = `CALL rectest.myproc(:inbv, :outbv)`;
try {
connection = await oracledb.getConnection(dbConfig);
// Create a PL/SQL package that uses a RECORD
await connection.execute(
`CREATE OR REPLACE PACKAGE rectest AS
TYPE rectype IS RECORD (name VARCHAR2(40), pos NUMBER);
PROCEDURE myproc (p_in IN rectype, p_out OUT rectype);
END rectest;`);
await connection.execute(
`CREATE OR REPLACE PACKAGE BODY rectest AS
PROCEDURE myproc (p_in IN rectype, p_out OUT rectype) AS
BEGIN
p_out := p_in;
p_out.pos := p_out.pos * 2;
END;
END rectest;`);
// Get the RECORD prototype object
const RecTypeClass = await connection.getDbObjectClass("RECTEST.RECTYPE");
// console.log(RecTypeClass.prototype);
//
// Single execution
//
console.log('Using the constructor to create an object:');
obj = new RecTypeClass({ NAME: 'Ship', POS: 12 });
binds = {
inbv: obj,
outbv: { type: RecTypeClass, dir: oracledb.BIND_OUT }
};
result = await connection.execute(plsql, binds);
console.log(result.outBinds.outbv);
console.log('\nBinding the record values directly:');
binds = {
inbv: { type: RecTypeClass, val: { NAME: 'Plane', POS: 34 } },
outbv: { type: RecTypeClass, dir: oracledb.BIND_OUT }
};
result = await connection.execute(plsql, binds);
console.log(result.outBinds.outbv);
// Using the name for the type
binds = {
inbv: { type: "RECTEST.RECTYPE", val: { NAME: 'Car', POS: 56 } },
outbv: { type: RecTypeClass, dir: oracledb.BIND_OUT }
};
result = await connection.execute(plsql, binds);
console.log(result.outBinds.outbv);
//
// executeMany()
//
console.log('\nExample with executeMany():');
binds = [
{ inbv: { NAME: 'Train', POS: 78 } },
{ inbv: { NAME: 'Bike', POS: 83 } }
];
options = {
bindDefs: {
inbv: { type: RecTypeClass },
outbv: { type: RecTypeClass, dir: oracledb.BIND_OUT },
}
};
result = await connection.executeMany(plsql, binds, options);
for (const b of result.outBinds) {
console.log(b.outbv);
}
} catch (err) {
console.error(err);
} finally {
if (connection) {
try {
await connection.close();
} catch (err) {
console.error(err);
}
}
}
}
run();