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Randomly Transfer Data

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ywb
Yak Posting Veteran

55 Posts

Posted - 2006-04-05 : 19:57:15

Hi,

I have 3 tables tblUser, tblColor and tblShape like the following.

CREATE TABLE tblUser (userID smallint PRIMARY KEY IDENTITY NOT NULL, username nvarchar (20) NOT NULL);

INSERT INTO tblUser (username) VALUES ('Peter');
INSERT INTO tblUser (username) VALUES ('Paul');
INSERT INTO tblUser (username) VALUES ('Mary');

CREATE TABLE tblColor (colorID smallint PRIMARY KEY IDENTITY NOT NULL, color nvarchar (20) NOT NULL);

INSERT INTO tblColor (color) VALUES ('Red');
INSERT INTO tblColor (color) VALUES ('Green');
INSERT INTO tblColor (color) VALUES ('Blue');
INSERT INTO tblColor (color) VALUES ('Yellow');

CREATE TABLE tblShape (shapeID smallint PRIMARY KEY IDENTITY NOT NULL, shape nvarchar (20) NOT NULL);

INSERT INTO tblShape (shape) VALUES ('Circle');
INSERT INTO tblShape (shape) VALUES ('Triangle');
INSERT INTO tblShape (shape) VALUES ('Square');

There is a 4th table that stores the users' favorite color and shape and the table is like this:

CREATE TABLE tblUserFav (favID smallint PRIMARY KEY IDENTITY NOT NULL, userID smallint NOT NULL, colorID smallint NOT NULL, shapeID smallint NOT NULL)

Now I would like to write a SQL statement that will pull every user ID in the tblUser table, populate into the tblUserFav table, and also randomly select a color and shape and assign to each user.

How can I accomplish this?

Thanks,
ywb.

nr
SQLTeam MVY

12543 Posts

Posted - 2006-04-05 : 20:28:05

declare @userID int
select @userID = 0
while @userID < (select max(userID) from tblUser)
begin
select @userID = @userID + 1
insert tblUserFav (userID, colorID, shapeID)
select @userID, (select top 1 colorID from tblColor order by newid()), (select top 1 shapeID from tblShape order by newid())
end

==========================================
Cursors are useful if you don't know sql.
DTS can be used in a similar way.
Beer is not cold and it isn't fizzy.

ywb
Yak Posting Veteran

55 Posts

Posted - 2006-04-06 : 13:49:38

Hi nr, it works great! Thanks!

quote:
Originally posted by nr

declare @userID int
select @userID = 0
while @userID < (select max(userID) from tblUser)
begin
select @userID = @userID + 1
insert tblUserFav (userID, colorID, shapeID)
select @userID, (select top 1 colorID from tblColor order by newid()), (select top 1 shapeID from tblShape order by newid())
end

==========================================
Cursors are useful if you don't know sql.
DTS can be used in a similar way.
Beer is not cold and it isn't fizzy.

ywb
Yak Posting Veteran

55 Posts

Posted - 2006-04-06 : 16:15:59

Hi nr,

How do I get it to work if the userID in my tblUser table isn't sequential? For example, what if Peter, Paul & Mary had userID of 3, 97, 17 respectively?

ywb.

nr
SQLTeam MVY

12543 Posts

Posted - 2006-04-06 : 18:50:27

declare @userID int
select @userID = 0
while @userID < (select max(userID) from tblUser)
begin
select @userID = min(userID) from tblUser where userID > @userID
insert tblUserFav (userID, colorID, shapeID)
select @userID, (select top 1 colorID from tblColor order by newid()), (select top 1 shapeID from tblShape order by newid())
end

==========================================
Cursors are useful if you don't know sql.
DTS can be used in a similar way.
Beer is not cold and it isn't fizzy.

ywb
Yak Posting Veteran

55 Posts

Posted - 2006-04-07 : 19:11:05

Cool! Thanks!

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