无法读取null 的属性'release'

我试图运行一个脚本，从一个数据库中提取logging，然后将logging插入到另一个数据库中，但在插入步骤中，我一直运行这个错误8或9重复。

我对node-mssql库不是很熟悉，希望能够对这里发生的事情有所了解！ 我附上了一个堆栈跟踪和脚本的副本。

const sql = require('mssql') const humENV = require('../env').humENV const rbENV = require('../env').rbENV const logger = require('./logger') const getReviewHumanatic = async () => { try { let pool = await sql.connect(humENV.SQL_CONFIG) let req = await pool.request() .query(` WITH cte AS (SELECT DISTINCT TOP 500 htaskid, ht.frn_leuserid, ht.frn_callid, ht.frn_hcatid, ht.frn_hcat_optionid, frn_lskinid, cq.duration_seconds, add_path, CASE WHEN call_queueid IS NULL THEN 3 ELSE 1 END AS status, CASE WHEN hcab_reviewid IS NULL THEN 0 ELSE 1 END AS HCAB FROM htask ht LEFT JOIN call_queue cq ON ht.frn_callid = cq.frn_callid LEFT JOIN hcab_review hr ON hr.frn_callid = cq.frn_callid AND ht.frn_leuserid = hr.frn_leuserid) SELECT Isnull(frn_callid, 0) AS frn_callid, Isnull(frn_hcatid, 0) AS frn_hcatid, Isnull(HCAB, 0) AS HCAB, Isnull(frn_hcat_optionid, 0) AS frn_hcat_optionid, Isnull(frn_lskinid, 0) AS frn_lskinid, Isnull(frn_leuserid, 0) AS frn_leuserid, Isnull(status, 0) AS status, Isnull(duration_seconds, 0) AS duration_seconds, Isnull(add_path, '') AS add_path, Isnull(htaskid, 0) AS htaskid FROM cte ORDER BY frn_callid `) if (req.recordset.length !== 0) { console.log(req.recordset) logger.info('returning query records') return req.recordset } pool.close() } catch (err) { logger.error(err) } } const insertRebase = async (data) => { try { sql.close() let pool = await sql.connect(rbENV.SQL_CONFIG) for (let i = 0; i < data.length; i++) { console.log(data[i]) let req = await pool.request() .input('frn_callid', sql.BigInt, data[i].frn_callid) .input('frn_categoryid', sql.Int, data[i].frn_hcatid) .input('HCAB', sql.Int, data[i].HCAB) .input('frn_answer_optionid', sql.Int, data[i].frn_hcat_optionid) .input('frn_leuserid', sql.Int, data[i].frn_leuserid) .input('frn_lskinid', sql.Int, data[i].frn_lskinid) .input('frn_statusid', sql.TinyInt, data[i].status) .input('reviewid', sql.Int, data[i].htaskid) .input('call_duration', sql.Int, data[i].duration_seconds) .input('HCAB_trigger', sql.VarChar, data[i].add_path) .query('SET IDENTITY_INSERT review ON; INSERT INTO review (frn_callid, frn_categoryid, HCAB, frn_answer_optionid, frn_leuserid, frn_lskinid, frn_statusid, reviewid, call_duration, HCAB_trigger) VALUES (@frn_callid, @frn_categoryid, @HCAB, @frn_answer_optionid, @frn_leuserid, @frn_lskinid, @frn_statusid, @reviewid, @call_duration, @HCAB_trigger)', function (err, recordset) { if (err) { logger.error(err) console.log(err) } pool.close() }) } } catch (err) { logger.error(err) } } const initializeReview = async () => { try { const humData = await getReviewHumanatic() insertRebase(humData) } catch (err) { console.log(err) } } initializeReview() 

我看了这个问题NPM MSSQL – 错误：uncaughtException：无法读取null属性的'释放'，但它看起来不像是一个决定性的解决scheme。

堆栈错误的痕迹：

编辑：由于我原来的职位，我已经将插入查询转换为准备状态：

 const insertRebase = async (data) => { try { sql.close() let pool = await sql.connect(rbENV.SQL_CONFIG) for (let i = 0; i < data.length; i++) { let ps = new sql.PreparedStatement(pool) ps.input('frn_callid', sql.BigInt) ps.input('frn_categoryid', sql.Int) ps.input('HCAB', sql.Int) ps.input('frn_answer_optionid', sql.Int) ps.input('frn_leuserid', sql.Int) ps.input('frn_lskinid', sql.Int) ps.input('frn_statusid', sql.TinyInt) ps.input('reviewid', sql.Int) ps.input('call_duration', sql.Int) ps.input('HCAB_trigger', sql.VarChar) ps.prepare(`SET IDENTITY_INSERT review ON; INSERT INTO review (frn_callid, frn_categoryid, HCAB, frn_answer_optionid, frn_leuserid, frn_lskinid, frn_statusid, reviewid, call_duration, HCAB_trigger) VALUES (@frn_callid, @frn_categoryid, @HCAB, @frn_answer_optionid, @frn_leuserid, @frn_lskinid, @frn_statusid, @reviewid, @call_duration, @HCAB_trigger)`, err => { if (err) { console.log(err) logger.error(err) } else { ps.execute({frn_callid: data[i].frn_callid, frn_categoryid: data[i].frn_hcatid, HCAB: data[i].HCAB, frn_answer_optionid: data[i].frn_hcat_optionid, frn_leuserid: data[i].frn_leuserid, frn_lskinid: data[i].frn_lskinid, frn_statusid: data[i].status, reviewid: data[i].htaskid, call_duration: data[i].duration_seconds, HCAB_trigger: data[i].add_path}, (err, result) => { if (err) { console.log(err) logger.error(err) } else { ps.unprepare(err => { if (err) { console.log(err) logger.error(err) } }) } }) } }) } } catch (err) { logger.error(err) } } 

我不确定为什么预处理解决scheme在以前的解决scheme上工作，但预处理解决scheme似乎没有出错并正确插入所有logging。

至于sql.close（）全局连接的问题，是干嘛的

 const getReviewHumanatic = async () => { try { let pool1 = await sql.connect(SQL_CONFIG1) let req = await pool1.request() } 

创build一个全局连接？ 我假设它正在创build一个本地连接，如果我这样做

 let pool2 = await sql.connect(SQL_CONFIG2) 

它会创build一个单独的sql连接，但似乎并不是这种情况，因为我无法在不创buildsql.close sql.close()的情况下运行脚本，然后才能创buildpool2。

我检查了node-mssql文档，看起来好像我做了一个没有池规范的请求，它将使用全局的sql连接; 也许这就是我的脚本发生了什么？ https://www.npmjs.com/package/mssql#request