如何在Ubuntu上构建QT5.7.0以实现对Windows的交叉编译?In file included from qt-everywhere-opensource-src-5.7.0/qtbase/include/QtCore/qt_windows.h:1:0,qt-everywhere-opensource-src-5.7.0/qtbase/include/QtCore/../../src/corelib/global/qt_windows.h:61:21: fatal error: windows.h: N
`idA` LEFT JOIN tableC ON tableC.idC = tableB.idC
LEFT JOIN tableD ON tableD.idD = tableC.idC您的SQL语法有错误;请检查与您的MariaDB服务器版本相对应的手册,以便在第6行使用接近'LEFT ON tableC .idC = tableB.idC‘的右语法。
[IDC_IDCONTACT] AS [IDC_IDCONTACT], [Project1].[IDC_NOSOC] AS [IDC_NOSOC], [Project1].[IDC_IDCONTACT] AS [IDC_IDCONTACT], [Project1].[IDC_NOSOC] AS [IDC_NOSOC
update_filenumber, update_filetype, update_timedate WHERE substring(update_idccode,0,7) ='idc2997%' AND update_filetype = 'E'我正在尝试获取update_idccode表列的前7个字符。