原文:Simple subquery in Access
I have got a Subquery issue that I am sure has a really really simple solution but I can t figure out what it is! Here s what I m trying to do, I have two tables, let s say, customer and orders. The ...
原文:sql query. Associated with multiple tables
面对这一问题,我不知道如何从多个表格中提取数据。 我试图利用INNER JOIN和UNION。
原文:Problems understanding FOREIGN KEY / CASCADE constraints
我需要一些帮助了解外国钥匙和连锁店是如何运作的。 我理解这一理论,但我有麻烦,难以把这些理论应用到真正的世界范例。
原文:How to transform set date to adjust for UTC?
我确实需要一些专家帮助。 我正在办理一个储存的程序,在我显示之前,一切都是罚款和dan。 储存在数据库中的所有物品都存放在UTC,然而,我们却获得了......。
原文:SQL PIVOT ON Across Multiple Tables
I am trying to do a PIVOT (am running SQL Server 2008) across multiple tables and with no aggregate function involved. I have to be honest I m a little out of my depth here and am struggling to ...
原文:Insert, Delete and Update commands are null after using SqlCommandBuilder
我有这样的情况,即我需要先修改指挥,然后由旋涡轮机生成,我需要这样做,才能在插入后确定身份。 该法典的部分内容是:
原文:Joining to another table on fields other than its primary key
附录一有表_A,我希望与表_B一样,在两个领域,即学校补贴和补贴。 参看:
原文:Select * where tag name is in junction table
目前,我有一个问题,即挑选所有个人,让人们观看录像,并由多数观众进行分类。 每当有人观看录像时,就用erson语制作一个条目。
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