小编Iya*_*yas的帖子

我有这个代码:

select  a.id as tableid,
    a.name as tableName, 
    b.name as columnName,
    b.status as columnStatus,
    b.type as columnType
    from sysobjects a 
    LEFT JOIN syscolumns b
    ON a.id = b.id
    WHERE a.name = 'table_name'

现在,columType显示数字.我想获取columnType的名称,该名称位于表'systypes'中的'name'列中.我怎么做？简单的LEFT JOIN将导致重复的行.

我在我的终端中运行这个命令：

tns doctor --log trace

我得到了这个结果：

execFile: /Users/iyasilias/Library/Android/sdk/platform-tools/adb "help"
execFile: /Users/iyasilias/Library/Android/sdk/platform-tools/adb "help"
spawn: /Users/iyasilias/Library/Android/sdk/platform-tools/adb "--help"
Socket {
  _connecting: false,
  _hadError: false,
  _handle: 
   Pipe {
     bytesRead: 0,
     _externalStream: {},
     fd: 15,
     writeQueueSize: 0,
     owner: [Circular],
     onread: [Function: onread],
     reading: true },
  _parent: null,
  _host: null,
  _readableState: 
   ReadableState {
     objectMode: false,
     highWaterMark: 16384,
     buffer: [],
     length: 0,
     pipes: null,
     pipesCount: 0,
     flowing: null,
     ended: false,
     endEmitted: false,
     reading: true,
     sync: false,
     needReadable: true,
     emittedReadable: false,
     readableListening: false,
     resumeScheduled: false,
     defaultEncoding: 'utf8',
     ranOut: …