select COLUMN_NAME from (
SELECT t.COLUMN_NAME, COUNT(*) c FROM USER_TAB_COLUMNS t WHERE t.TABLE_NAME ='table1'
OR t.TABLE_NAME='table2' GROUP BY COLUMN_NAME
)where c=2
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select COLUMN_NAME from (
SELECT t.COLUMN_NAME, COUNT(*) c FROM USER_TAB_COLUMNS t WHERE t.TABLE_NAME ='table1'
OR t.TABLE_NAME='table2' GROUP BY COLUMN_NAME
)where c=2
相关文章：