oralce中取前几条数据的方法
sql中有top语句,可以去前N条数据,可是在oracle中却不支持该关键词。
在oracle中一般通过 order by 和 rownum 来获取前几条数据。
例如:
select id,well_id,p_daily_oil_yield,update_date from pc_oil_well_operation_daily where well_id='Y8WnimBgUA' and rownum<11 order by update_date desc
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2022年12月23日 20:44
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