conn system/sys@chillselect count(*) from dba_tab_columns where owner='PDM9' and table_name='CUSTOMERORDER'PDM9是用户名,CUSTOMERORDER是表名,这两个参数都必须大写。
conn system/sys@chillselect count(*) from dba_tab_columns where owner='PDM9' and table_name='CUSTOMERORDER'
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