rownum
- 网络伪列;行号
rownum
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What if the query says ROWNUM = 100 ?
如果查询使用ROWNUM=100,那么怎么办?
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Once this is done , the recursive CTE n refers to source to pick up the rownum .
之后,递归CTEn引用source来获得rownum。
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For example , you can add a ROWNUM clause to limit the number of rows in Oracle or use the TOP clause for SQL Server .
例如,在Oracle中可以添加ROWNUM子句以限制行数,对于SQLServer使用TOP子句。
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ROWNUM pseudocolumn This pseudocolumn is typically used to limit the number of rows returned and to enumerate rows in a result set .
ROWNUM伪列该伪列通常用于限制返回的行数并在结果集中枚举行。