在command窗口输入desc testtable可以正常执行显示表结构 经过调试,发现在command窗口中输入的desc testtable语句, 最终执行了select col.*, com.Comments from sys.all_tab_columns col, sys.all_col_comments com where col.owner = 'KF' and col.table_name = 'TESTTABLE' and com.Owner (+) = 'KF' and com.Table_Name (+) = 'TESTTABLE' and com.Column_Name (+) = col.Column_Name order by col.column_id