假设我有一张像下面这样的桌子
pp_refno pp_rectype _pp_account pp_empid pp_dept
---------------------------------------------------------
90221 contractor 061509864 C00001121 1111000139
是否可以编写查询以使数据以这种格式返回?
field_name field_type field_value
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pp_refno int 90221
pp_rectype char contractor
pp_account char 061509864
pp_empid char C00001121
pp_dept char 1111000139