mysql-執行階段錯誤'13' 型態不符合 ----VBA 連接MYSQL多表查詢

mysqlvba

** 請教各位高手：

我在VBA中如下連接mysql單表查詢沒問題，有數據出來。
**

.CommandText = Array( _
"select " _
& "proc_hist_0.prod_pn , proc_hist_0.LOT_NO, proc_hist_0.proc_ID, proc_hist_0.IN_TIME, proc_hist_0.IN_QTY, proc_hist_0.OUT_TIME, proc_hist_0.OUT_QTY " _
& "FROM proc_hist proc_hist_0 " _
& "WHERE " _
& "proc_hist_0.co_code='" & mrpc & "' and proc_hist_0.PROD_PN='" & itnr & "' ")

<code>        **但是增加一個表左連接后就不行，報錯：執行階段錯誤'13' 型態不符合 。</code>

**
如下代碼，請幫忙看看錯在哪裡：

<code>         .CommandText = Array( _     "select " _    &amp; "proc_hist_0.prod_pn , proc_hist_0.LOT_NO, proc_hist_0.proc_ID, proc_hist_0.IN_TIME, proc_hist_0.IN_QTY, proc_hist_0.OUT_TIME, proc_hist_0.OUT_QTY " _    &amp; "FROM proc_hist proc_hist_0 " _    &amp; "Left Join " _    &amp; "proc_para proc_para_0 " _    &amp; "On " _    &amp; "proc_hist_0.co_code = proc_para_0.co_code " _    &amp; "and " _    &amp; "proc_hist_0.wip_id = proc_para_0.wip_id " _    &amp; "and " _    &amp; "proc_hist_0.proc_ref = proc_para_0.proc_ref " _    &amp; "WHERE " _    &amp; "proc_hist_0.co_code='" &amp; mrpc &amp; "'  and proc_hist_0.PROD_PN='" &amp; itnr &amp; "' ")</code>