First, download the documentation. It is called "books online". Search with google books online for your version of sql server. This is example for SQL 2008R2 (put that in google):

sql...

Try a free tool XDetails (http://www.sqlxdetails.com). It really simple presents multicolumn PK, FK, column comments and other features.

If you really have to...

split to one city, than rejoin them with less cities per row.

But I would not join them at all. I would leave one city per row.

Google...

Modulo was because smaller table has less rows than big table.

Lets say N = number of rows in the smaller table.

Smaller table is widened in subquery with random unique...

From the smaller table make a subquery widening it with a random ordinal number as shown in example before (row_number() over(order by newid()) construct).

If you have unique integer (maybe PK?)...

Why update? You could select exactly what you need and optionally store that via insert.

Update is a low performer.

Since you didn't specify what is random here, let's assume you have...

Like Andrew said, it's a classic many-to-many relation. In logical data model you have two entities: A and B. One A can have (contains, is associated with, etc) multiple B's,...

You could use SQL_VARIANT data type that can store any other base data type without conversion or lost precision:

DECLARE @x AS SQL_VARIANT, @y AS SQL_VARIANT, @t AS SQL_VARIANT

SELECT @x =...

In this example full text index is very wrong solution.

You should store each value in separate table row and use a normal index.

Split function is here:

-- Create sysTally table

SELECT TOP...

create procedure ErrorListGet

-- Returns comma-separated list of errors for given request

(@reqid int,

@Messages varchar(max) out

) as

begin

-- Bild comma-separated list of messages

-- If you want some particular order, simply add "order...

CASE in not complex at all.

I already wrote you description of what might be wrong.

You cannot use LEFT JOIN and then update right table - if there is no matched...

tacy.highland (1/17/2011)

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Here's the scenario:

UPDATE BookingActivity

SET faretypeid =

CASE WHEN c.FareTypeId IN (9,10,11) THEN 4

ELSE faretypeid = b.FareTypeId

END

FROM Booking b

LEFT JOIN Clients c ON b.ClientID =...

Lamprey13 stole me the word of mouth (or code from the keyboard) 😉

That code is the best IMHO. Think of this situation: If the code inside the try-block calls a...

In short: no. You probably will not have significant performance gains if you use "mutant" CASE statement.

It's all about the megabytes that db engine needs to read to get you...

This requires classic tuning procedure.

Collect few typical queries, and start with the one that is used the most.

Measure logical reads, eg. like this:

SET STATISTICS IO ON

SELECT * FROM sys.all_objects --...