access sql语句查询

 

查询时生成序号
SELECT (SELECT Count([xlh].[aa]) AS AutoNum FROM xlh WHERE  (((xlh.aa)<=xlh_Alias.aa));) AS 序号, xlh.aa
FROM xlh AS xlh_Alias INNER JOIN xlh ON xlh_Alias.aa=xlh.aa
ORDER BY xlh.aa;

多表sql查询
SELECT test.aa AS 第一个字段, test1.bb AS 第二个字段, test1.cc
FROM test, test1
WHERE test.aa=test1.aa;

多表sql查询1
SELECT a.aa, b.bb, b.cc, b.cc*100 AS 合计
FROM test AS a, test1 AS b
WHERE a.aa=b.aa;

多表sql查询排序
SELECT a.aa, b.bb, b.cc AS 第三个字段
FROM test AS a, test1 AS b
WHERE a.aa=b.aa
ORDER BY b.cc;

查询例子
SELECT a.dhhm
FROM xl11a AS a, xl919 AS b
WHERE a.dhhm=b.dhhm and aa<>"1";

日期时间分隔符是#而不是引号
Select * From Tab1 Where [Date]>#2002-1-1#;