SQL Compact 3.5中的嵌套SELECT子句 [英] Nested SELECT clause in SQL Compact 3.5
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问题描述
在此帖子中,"选择带有嵌套的选择",我读到SQL Compact 3.5(SP1)支持嵌套的SELECT子句.但是我的要求不起作用:
In this post "select with nested select" I read that SQL Compact 3.5 (SP1) support nested SELECT clause. But my request not work:
t1-表1 t2-表2 c1,c2 =列
t1 - table 1 t2 - table 2 c1, c2 = columns
select
t1.c1,
t1.c2,
(select count(t2.c1) from t2 where t2.id = t1.id) as count_t
from
t1
在这种情况下,SQL Compact 3.5 SP1是否支持嵌套的SELECT子句?
Does SQL Compact 3.5 SP1 support nested SELECT clause in this case?
更新:
SQL Compact 3.5 SP1可以处理这种嵌套请求:
SQL Compact 3.5 SP1 work with this type of nested request:
- SELECT ... from ... from ... where .. IN(SELECT ...)
- 选择... 来自(选择 ...)
- SELECT ... from ... where .. IN (SELECT ...)
- SELECT ... from (SELECT ...)
推荐答案
感谢所有的帮助和建议.
Thank all for help and advise.
问题的最终答案-否. SQL Compact 3.5 SP1不支持嵌套的select子句.
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