asp.net中可以执行sql子查询语句吗？
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当然可以
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string sql= "select * from sdf "
SqlCommmand objCmd = new SqlCommand(sql,conn)
objCmd.ExecuteNonQuery
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of course
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SqlConnection conn = new SqlConnection();
conn.ConnectionString = "连接数据库的字符串 ";
conn.Open();
SqlCommand objCmd = new SqlCommand();
string strSql= "select * from dual ";
SqlCommmand objCmd = new SqlCommand(strSql,conn);
objCmd.ExecuteNonQuery();
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当然可以
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可以,能不能执行sql语句是看数据库的类型来的,在SQLserver中能执行的在Accesss可能不行,和语言没有关系