错误 SQL TOP子句中的行数必须是整数
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错误 SQL TOP子句中的行数必须是整数
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sql = "select * from TABLE where id=‘“+id+”’";
sql = "select top "+PageSize.ToInt32() +" * from TABLE where id not in(select top " +
Convert.ToInt32((pageno-1)*PageSize) +" id from TABLE)";
示例：
Select top 10 *
from A
where a not in(select top 10 a from A) and b not in(select top 10 b from A)
not in 效率低，用left join 改寫為：
Select top 10 * from A x
left join (select top 10 a from A) y on x.a = y.a
left join (select top 10 b from A) z on x.b = z.b
where y.a is null and z.b is null
sql = "select top "+PageSize.ToInt32() +" * from TABLE where id not in(select top " +
Convert.ToInt32((pageno-1)*PageSize) +" id from TABLE)";
示例：
Select top 10 *
from A
where a not in(select top 10 a from A) and b not in(select top 10 b from A)
not in 效率低，用left join 改寫為：
Select top 10 * from A x
left join (select top 10 a from A) y on x.a = y.a
left join (select top 10 b from A) z on x.b = z.b
where y.a is null and z.b is null
?
?
轉載于:https://www.cnblogs.com/lushuicongsheng/archive/2010/12/06/1897609.html
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