Well, if you happen to be using Sql Server you can do that sort of thing in T-Sql. In Oracle, you can also accomplish the same thing using pl/sql. Either way i'd do it in a stored ...

-- (select [id] from t1 where [id]>3) as id1, -- (select num from t1 where num<7) as num1, -- (select [id] from t2 where [id]<5) as id2, -- (select num from t2 where num>5) as num2 -- into t3 ...

If your business uses relational databases to store data, it helps to use the SQL SELECT command with the INTO clause to create new tables from query results. This method isn't ANSI-standard SQL, but ...

Command.CommandText = "select Playfile.FileName from Playfile where Playfile.PID IN(select Playlist.PID from Playlist where Playlist.Name1 = '" & TextBox1.Text & "')" 这样说 表达式中的类型不匹配 可是我把 PID 后面的 IN 换成 ...

Inside a relational database management system, the princi­pal persisted data structure is considered a logical relation. Operations performed against that data within the RDBMS result in a logical ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...