143 lines
4.5 KiB
JavaScript
143 lines
4.5 KiB
JavaScript
/* Copyright (c) 2017, 2022, Oracle and/or its affiliates. */
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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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* 135. clobDMLReturningMultipleRowsAsStream.js
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*
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* DESCRIPTION
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* Testing CLOB DML returning multiple rows as stream.
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*
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*****************************************************************************/
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'use strict';
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var oracledb = require('oracledb');
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var should = require('should');
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var async = require('async');
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var dbConfig = require('./dbconfig.js');
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var sql = require('./sql.js');
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describe('135. clobDMLReturningMultipleRowsAsStream.js', function() {
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var connection = null;
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var tableName = "nodb_dml_clob_135";
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var clob_table_create = "BEGIN \n" +
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" DECLARE \n" +
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" e_table_missing EXCEPTION; \n" +
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" PRAGMA EXCEPTION_INIT(e_table_missing, -00942); \n" +
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" BEGIN \n" +
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" EXECUTE IMMEDIATE('DROP TABLE " + tableName + " PURGE'); \n" +
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" EXCEPTION \n" +
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" WHEN e_table_missing \n" +
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" THEN NULL; \n" +
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" END; \n" +
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" EXECUTE IMMEDIATE (' \n" +
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" CREATE TABLE " + tableName + " ( \n" +
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" num NUMBER, \n" +
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" clob CLOB \n" +
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" ) \n" +
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" '); \n" +
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" FOR i IN 1..10 LOOP \n" +
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" EXECUTE IMMEDIATE ( \n" +
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" 'insert into " + tableName + " values (' || \n" +
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" to_char(i) || ', ' || to_char(i) || ')'); \n" +
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" END LOOP; \n" +
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" commit; \n" +
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"END; ";
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var clob_table_drop = "DROP TABLE " + tableName + " PURGE";
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before(function(done) {
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oracledb.getConnection(dbConfig, function(err, conn) {
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should.not.exist(err);
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connection = conn;
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done();
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});
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});
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after(function(done) {
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connection.release(function(err) {
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should.not.exist(err);
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done();
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});
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});
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describe('135.1 CLOB DML returning multiple rows as stream', function() {
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before(function(done) {
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sql.executeSql(connection, clob_table_create, {}, {}, done);
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});
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after(function(done) {
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sql.executeSql(connection, clob_table_drop, {}, {}, done);
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});
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it('135.1.1 CLOB DML returning multiple rows as stream', function(done) {
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updateReturning_stream(done);
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});
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});
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var updateReturning_stream = function(callback) {
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var sql_update = "UPDATE " + tableName + " set num = num+10 RETURNING num, clob into :num, :lobou";
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connection.execute(
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sql_update,
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{
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num: { type: oracledb.NUMBER, dir: oracledb.BIND_OUT },
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lobou: { type: oracledb.CLOB, dir: oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var numLobs = result.outBinds.lobou.length;
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should.strictEqual(numLobs, 10);
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async.times(
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numLobs,
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function(n, next) {
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verifyLob(n, result, function(err, result) {
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next(err, result);
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});
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},
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callback
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);
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}
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);
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};
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var verifyLob = function(n, result, cb) {
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var lob = result.outBinds.lobou[n];
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var id = result.outBinds.num[n];
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should.exist(lob);
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lob.setEncoding('utf8');
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var clobData = '';
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lob.on('data', function(chunk) {
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clobData += chunk;
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});
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lob.on('error', function(err) {
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should.not.exist(err);
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});
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lob.on('end', function(err) {
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should.not.exist(err);
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should.strictEqual(clobData, (id - 10).toString());
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});
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lob.on('close', function(err) {
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should.not.exist(err);
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cb(err, result);
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});
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};
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});
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