137 lines
3.3 KiB
JavaScript
137 lines
3.3 KiB
JavaScript
/* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. */
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/******************************************************************************
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*
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* You may not use the identified files except in compliance with the Apache
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* License, Version 2.0 (the "License.")
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*
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* You may obtain a copy of the License at
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* http://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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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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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* insert1.js
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*
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* DESCRIPTION
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* Creates a table and inserts data. Shows DDL and DML
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*
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*****************************************************************************/
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var async = require('async');
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var oracledb = require('oracledb');
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var dbConfig = require('./dbconfig.js');
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var doconnect = function(cb) {
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oracledb.getConnection(
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{
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user : dbConfig.user,
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password : dbConfig.password,
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connectString : dbConfig.connectString
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},
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cb);
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};
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var dorelease = function(conn) {
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conn.close(function (err) {
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if (err)
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console.error(err.message);
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});
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};
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var dodrop = function (conn, cb) {
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conn.execute(
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`BEGIN
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EXECUTE IMMEDIATE 'DROP TABLE test';
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EXCEPTION WHEN OTHERS THEN
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IF SQLCODE <> -942 THEN
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RAISE;
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END IF;
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END;`,
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function(err) {
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if (err) {
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return cb(err, conn);
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} else {
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console.log("Table dropped");
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return cb(null, conn);
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}
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});
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};
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var docreate = function (conn, cb) {
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conn.execute(
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"CREATE TABLE test (id NUMBER, name VARCHAR2(20))",
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function(err) {
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if (err) {
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return cb(err, conn);
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} else {
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console.log("Table created");
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return cb(null, conn);
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}
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});
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};
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var doinsert1 = function (conn, cb) {
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conn.execute(
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"INSERT INTO test VALUES (:id, :nm)",
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{ id : {val: 1 }, nm : {val: 'Chris'} }, // 'bind by name' syntax
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function(err, result) {
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if (err) {
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return cb(err, conn);
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} else {
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console.log("Rows inserted: " + result.rowsAffected); // 1
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return cb(null, conn);
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}
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});
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};
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var doinsert2 = function (conn, cb) {
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conn.execute(
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"INSERT INTO test VALUES (:id, :nm)",
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[2, 'Alison'], // 'bind by position' syntax
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function(err, result) {
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if (err) {
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return cb(err, conn);
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} else {
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console.log("Rows inserted: " + result.rowsAffected); // 1
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return cb(null, conn);
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}
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});
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};
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var doupdate = function (conn, cb) {
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conn.execute(
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"UPDATE test SET name = :nm",
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['Bambi'],
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{ autoCommit: true }, // commit once for all DML in the script
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function(err, result) {
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if (err) {
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return cb(err, conn);
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} else {
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console.log("Rows updated: " + result.rowsAffected); // 2
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return cb(null, conn);
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}
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});
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};
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async.waterfall(
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[
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doconnect,
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dodrop,
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docreate,
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doinsert1,
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doinsert2,
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doupdate,
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dodrop // comment this out if you want to verify the data later
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],
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function (err, conn) {
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if (err) { console.error("In waterfall error cb: ==>", err, "<=="); }
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if (conn)
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dorelease(conn);
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});
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