当我出于某种原因尝试使用 NodeJs mssql@4.2.2 执行长查询时，我收到一个未知错误，不确定是否是因为查询使用 UNION 来连接来自具有相同列名的其他类似表的结果或什么。当我使用相同的sqlHelper.js代码从相同的表运行其他短查询并且它工作正常时，例如执行以下内容：
从 tblMenuVerticalLevel0 中选择 *
所有表都具有相同的架构，我在下面添加了架构。另外我想注意的是，当我使用 SQL Studio 运行相同的查询时，它工作正常，不知道为什么 nodejs 甚至不会执行，我在 Visual Studio 中放置一个断点，在查询被添加到内存到 sqlQuery 之后的行变量，然后将其复制并粘贴到 sql studio 中运行它并返回结果不确定为什么 nodejs mssql 模块不会执行它，有人知道为什么会这样吗？
var txtSearch = 'labor';
var intRecordID_Language = 1;
var intRecordID_Lingo = 1;
var intRecordID_Company = 5;
var intRecordID_Division = 15;
var sqlQuery = 'SELECT DISTINCT tblMenuVerticalLevel0.txtComponentPath, tblMenuLanguage.txtDisplayName, '
+ 'tblMenuVerticalLevel0.txtModule, tblMenuLanguage.txtSystemCrossReferenceName '
+ 'FROM tblMenuVerticalLevel0 '
+ 'INNER JOIN tblMenuLanguage ON tblMenuLanguage.intRecordID_Menu = tblMenuVerticalLevel0.intRecordID '
+ 'WHERE (((tblMenuLanguage.txtDisplayName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel0.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 1)) '
+ 'OR (CAST(tblMenuVerticalLevel0.intRecordID_Form AS VARCHAR(25)) LIKE \'%' + txtSearch + '%\''
+ 'AND tblMenuVerticalLevel0.intRecordID_Form > 0 AND (tblMenuLanguage.intRecordID_MenuLevel = 1)) '
+ 'OR (tblMenuLanguage.txtSystemCrossReferenceName LIKE \'%' + txtSearch + '%\')'
+ 'AND (tblMenuVerticalLevel0.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 1)) '
+ 'AND Len(tblMenuVerticalLevel0.txtComponentPath) > 0 '
+ 'AND (tblMenuLanguage.intRecordID_Language = ' + intRecordID_Language + ') '
+ 'AND (tblMenuLanguage.intRecordID_Lingo = ' + intRecordID_Lingo + ') '
+ 'AND (tblMenuLanguage.intRecordID_Company = ' + intRecordID_Company + ') '
+ 'AND (tblMenuLanguage.intRecordID_Division = ' + intRecordID_Division + ') '
+ 'AND tblMenuVerticalLevel0.txtModule <> \'System Used Forms\' '
+ 'UNION SELECT DISTINCT tblMenuVerticalLevel1.txtComponentPath, tblMenuLanguage.txtDisplayName, '
+ 'tblMenuVerticalLevel1.txtModule, tblMenuLanguage.txtSystemCrossReferenceName '
+ 'FROM tblMenuVerticalLevel1 '
+ 'INNER JOIN tblMenuLanguage ON tblMenuLanguage.intRecordID_Menu = tblMenuVerticalLevel1.intRecordID '
+ 'WHERE (((tblMenuLanguage.txtDisplayName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel1.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 2)) '
+ 'OR (CAST(tblMenuVerticalLevel1.intRecordID_Form AS VARCHAR(25)) LIKE \'%' + txtSearch + '%\' '
+ 'AND tblMenuVerticalLevel1.intRecordID_Form > 0 AND (tblMenuLanguage.intRecordID_MenuLevel = 2)) '
+ 'OR (tblMenuLanguage.txtSystemCrossReferenceName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel1.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 2)) '
+ 'AND Len(tblMenuVerticalLevel1.txtComponentPath) > 0 AND (tblMenuLanguage.intRecordID_Language = 0) '
+ 'AND (tblMenuLanguage.intRecordID_Lingo = ' + intRecordID_Lingo + ') '
+ 'AND (tblMenuLanguage.intRecordID_Company = ' + intRecordID_Company + ') '
+ 'AND (tblMenuLanguage.intRecordID_Division = ' + intRecordID_Division + ') '
+ 'AND tblMenuVerticalLevel1.txtModule <> \'System Used Forms\' '
+ 'UNION SELECT DISTINCT tblMenuVerticalLevel2.txtComponentPath, tblMenuLanguage.txtDisplayName, '
+ 'tblMenuVerticalLevel2.txtModule, tblMenuLanguage.txtSystemCrossReferenceName '
+ 'FROM tblMenuVerticalLevel2 '
+ 'INNER JOIN tblMenuLanguage ON tblMenuLanguage.intRecordID_Menu = tblMenuVerticalLevel2.intRecordID '
+ 'WHERE (((tblMenuLanguage.txtDisplayName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel2.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 3)) '
+ 'OR (CAST(tblMenuVerticalLevel2.intRecordID_Form AS VARCHAR(25)) LIKE \'%' + txtSearch + '%\' '
+ 'AND tblMenuVerticalLevel2.intRecordID_Form > 0 AND (tblMenuLanguage.intRecordID_MenuLevel = 3)) '
+ 'OR (tblMenuLanguage.txtSystemCrossReferenceName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel2.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 3)) '
+ 'AND Len(tblMenuVerticalLevel2.txtComponentPath) > 0 '
+ 'AND (tblMenuLanguage.intRecordID_Language = ' + intRecordID_Language + ') '
+ 'AND (tblMenuLanguage.intRecordID_Lingo = ' + intRecordID_Lingo + ') '
+ 'AND (tblMenuLanguage.intRecordID_Company = ' + intRecordID_Company + ') '
+ 'AND (tblMenuLanguage.intRecordID_Division = ' + intRecordID_Division + ') '
+ 'AND tblMenuVerticalLevel2.txtModule <> \'System Used Forms\' '
+ 'UNION SELECT DISTINCT tblMenuVerticalLevel3.txtComponentPath, tblMenuLanguage.txtDisplayName, '
+ 'tblMenuVerticalLevel3.txtModule, tblMenuLanguage.txtSystemCrossReferenceName '
+ 'FROM tblMenuVerticalLevel3 '
+ 'INNER JOIN tblMenuLanguage ON tblMenuLanguage.intRecordID_Menu = tblMenuVerticalLevel3.intRecordID '
+ 'WHERE (((tblMenuLanguage.txtDisplayName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel3.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 4)) '
+ 'OR (CAST(tblMenuVerticalLevel3.intRecordID_Form AS VARCHAR(25)) LIKE \'%' + txtSearch + '%\' '
+ 'AND tblMenuVerticalLevel3.intRecordID_Form > 0 AND (tblMenuLanguage.intRecordID_MenuLevel = 4)) '
+ 'OR (tblMenuLanguage.txtSystemCrossReferenceName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel3.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 4)) '
+ 'AND Len(tblMenuVerticalLevel3.txtComponentPath) > 0 '
+ 'AND (tblMenuLanguage.intRecordID_Language = ' + intRecordID_Language + ') '
+ 'AND (tblMenuLanguage.intRecordID_Lingo = ' + intRecordID_Lingo + ') '
+ 'AND (tblMenuLanguage.intRecordID_Company = ' + intRecordID_Company + ') '
+ 'AND (tblMenuLanguage.intRecordID_Division = ' + intRecordID_Division + ') '
+ 'AND tblMenuVerticalLevel3.txtModule <> \'System Used Forms\' '
+ 'UNION SELECT DISTINCT tblMenuVerticalLevel4.txtComponentPath, tblMenuLanguage.txtDisplayName, '
+ 'tblMenuVerticalLevel4.txtModule, tblMenuLanguage.txtSystemCrossReferenceName '
+ 'FROM tblMenuVerticalLevel4 '
+ 'INNER JOIN tblMenuLanguage ON tblMenuLanguage.intRecordID_Menu = tblMenuVerticalLevel4.intRecordID '
+ 'WHERE (((tblMenuLanguage.txtDisplayName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel4.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 5)) '
+ 'OR (CAST(tblMenuVerticalLevel4.intRecordID_Form AS VARCHAR(25)) LIKE \'%' + txtSearch + '%\' '
+ 'AND tblMenuVerticalLevel4.intRecordID_Form > 0 AND (tblMenuLanguage.intRecordID_MenuLevel = 5)) '
+ 'OR (tblMenuLanguage.txtSystemCrossReferenceName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel4.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 5)) '
+ 'AND Len(tblMenuVerticalLevel4.txtComponentPath) > 0 '
+ 'AND (tblMenuLanguage.intRecordID_Language = ' + intRecordID_Language + ') '
+ 'AND (tblMenuLanguage.intRecordID_Lingo = ' + intRecordID_Lingo + ') '
+ 'AND (tblMenuLanguage.intRecordID_Company = ' + intRecordID_Company + ') '
+ 'AND (tblMenuLanguage.intRecordID_Division = ' + intRecordID_Division + ') '
+ 'AND tblMenuVerticalLevel4.txtModule <> \'System Used Forms\' '
+ 'UNION SELECT DISTINCT tblMenuVerticalLevel5.txtComponentPath, tblMenuLanguage.txtDisplayName, '
+ 'tblMenuVerticalLevel5.txtModule, tblMenuLanguage.txtSystemCrossReferenceName '
+ 'FROM tblMenuVerticalLevel5 '
+ 'INNER JOIN tblMenuLanguage ON tblMenuLanguage.intRecordID_Menu = tblMenuVerticalLevel5.intRecordID '
+ 'WHERE (((tblMenuLanguage.txtDisplayName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel5.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 6)) '
+ 'OR (CAST(tblMenuVerticalLevel5.intRecordID_Form AS VARCHAR(25)) LIKE \'%' + txtSearch + '%\' '
+ 'AND tblMenuVerticalLevel5.intRecordID_Form > 0 AND (tblMenuLanguage.intRecordID_MenuLevel = 6)) '
+ 'OR (tblMenuLanguage.txtSystemCrossReferenceName LIKE \'%' + txtSearch + '%\') '
+ 'AND (tblMenuVerticalLevel5.intRecordID_Form > 0) AND (tblMenuLanguage.intRecordID_MenuLevel = 6)) '
+ 'AND Len(tblMenuVerticalLevel5.txtComponentPath) > 0 '
+ 'AND (tblMenuLanguage.intRecordID_Language = ' + intRecordID_Language + ') '
+ 'AND (tblMenuLanguage.intRecordID_Lingo = ' + intRecordID_Lingo + ') '
+ 'AND (tblMenuLanguage.intRecordID_Company = ' + intRecordID_Company + ') '
+ 'AND (tblMenuLanguage.intRecordID_Division = ' + intRecordID_Division + ') '
+ 'AND tblMenuVerticalLevel5.txtModule <> \'System Used Forms\' '
+ 'ORDER BY tblMenuLanguage.txtDisplayName ASC ';
sqlHelper.GetMSSQLSelectQuery('OS', sqlQuery, function (error, formSearchRecordSet) {
if (error) return next(error);
var jsonResults = '[]';
var sqlQueryResults = [];
sqlQueryResults.push({ txtSearchType: txtSearchType });
if (!utilities.IsUndefined(formSearchRecordSet) && formSearchRecordSet.length > 0) {
jsonResults = JSON.stringify(formSearchRecordSet);
sqlQueryResults.push(jsonResults);
response.send(sqlQueryResults);
}
else {
jsonResults = JSON.stringify(formSearchRecordSet);
sqlQueryResults.push(jsonResults);
response.send(sqlQueryResults);
}
});
sqlHelper.js
var mssql = require('mssql'); // version: mssql@4.2.2
const MSSQL_VERSION = '2000';
function getMsSqlConfig(version, databaseName) {
switch (version) {
case '2000':
return getMsSql2000Config(databaseName);
break;
case '2008R2':
return getMsSql2008R2Config(databaseName);
break;
}
return void (0);
}
function getMsSql2000Config(databaseName) {
var config = {
server: 'localhost',
user: '<someUserName>',
password: '<somePassword>',
database: databaseName,
options: {
encrypt: false,
tdsVersion: '7_1',
appName: APPLICATION_NAME,
debug: {
packet: true,
data: true,
payload: true,
token: true,
log: true
}
},
connectTimeout: 6000000,
requestTimeout: 120000
};
return config;
}
function getMSSQLSelectQuery(databaseName, sqlQuery, callback) {
var config = getMsSqlConfig(MSSQL_VERSION, databaseName);
var dbConn = new mssql.ConnectionPool(config);
dbConn.on('debug', function (msg) { console.log(msg) });
dbConn.connect().then(function (conn) {
var request = new mssql.Request(conn);
request.query(sqlQuery).then(function (resultObject) {
//console.log(resultObject);
dbConn.close();
return callback(void (0), resultObject['recordset']);
}).catch(function (error) {
console.log(error);
dbConn.close();
return callback(error, void (0));
});
}).catch(function (error) {
console.log(error);
return callback(error, void (0));
});
}
module.exports = {
GetMSSQLSelectQuery: getMSSQLSelectQuery
}
表架构
CREATE TABLE [dbo].[tblMenuVerticalLevel0](
[intRecordID_DatabaseID] [int] NULL,
[lblMenuVerticalLevel0Information] [varchar](10) NULL,
[ixtCode] [varchar](150) NULL,
[txtComponentDisplayName] [varchar](250) NULL,
[txtModule] [varchar](50) NULL,
[intRecordID_ModuleList] [int] NULL,
[intRecordID_Form] [int] NULL,
[txtComponentPath] [varchar](250) NULL,
[blnOpenNewWindow] [varchar](3) NULL,
[blnSubmenu] [varchar](3) NULL,
[intSequence] [int] NULL,
[blnAlphabetizeChildren] [varchar](3) NULL,
[blnShowRecordCount] [varchar](3) NULL,
[imgMenuImage] [varchar](250) NULL,
[lblMenuVerticalLevel0RecordInformation] [varchar](10) NULL,
[blnMakePrivate] [varchar](3) NULL,
[blnActive] [varchar](3) NULL,
[txtRecordCreationUser] [varchar](50) NULL,
[dteRecordCreationDate] [smalldatetime] NULL,
[dteRecordUpdateDate] [smalldatetime] NULL,
[blnCursor] [varchar](3) NULL,
[intRecordID_Company] [int] NULL,
[intRecordID_Division] [int] NULL,
[intRecordID] [int] NOT NULL,
[blnAttachment] [varchar](3) NULL,
[blnDeleted] [varchar](3) NULL,
[blnHighlight] [varchar](3) NULL,
[blnMemo] [varchar](3) NULL,
[blnProject] [varchar](3) NULL,
[blnProcess] [varchar](3) NULL,
[intRecordID_User_Creation] [int] NULL,
[intRecordID_ErrorLog] [int] NULL,
[intRecordID_Status] [int] NULL,
[blnPrint] [varchar](3) NULL,
[blnSecurity] [varchar](3) NULL,
[blnErrorLog] [varchar](3) NULL,
[blnAuditTrail] [varchar](3) NULL,
[blnSystemRecord] [varchar](3) NULL,
[txtFieldValueGenerator] [varchar](3) NULL,
[dteRecordSynchronization] [varchar](3) NULL,
[blnEcommerceTransmit] [varchar](3) NULL,
[blnWebSearch] [varchar](3) NULL,
[txtRecordUpdateUser] [varchar](50) NULL,
[blnFavorite] [varchar](3) NULL,
CONSTRAINT [PK_tblMenuVerticalLevel0] PRIMARY KEY CLUSTERED
(
[intRecordID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]