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摘要:
1. Finding the number of rows in each table by a single sql 1 SQL> select table_name, num_rows from user_tables; 2 3 TABLE_NAME NUM_ROWS 4 5 DEPT 4 6 阅读全文
posted @ 2020-12-27 22:26 wangzhch 阅读(122) 评论(0) 推荐(0) 编辑