Re: Having problems with what appears to be a simple query.

2007-01-17 Thread Daniel Smith
On Wed, 2007-01-17 at 11:47 -0600, Peter Brawley wrote: > Daniel, > > CREATE TABLE tbl ( > lab_number int(11) default NULL, > result int(11) default NULL, > release_time datetime default NULL > ); > select * from tbl; > +++-+ > | lab_number | result |

Re: Having problems with what appears to be a simple query.

2007-01-17 Thread Daniel Smith
On Wed, 2007-01-17 at 09:56 -0600, Peter Brawley wrote: > Daniel, > > >find the lab_number where ALL the tests have been performed and > >not the lab_numbers which have partial results. > > SELECT t1.lab,t1.res,t1.dt > FROM tbl t1 > WHERE NOT EXISTS( > SELECT lab FROM tbl t2 WHERE t1.lab=t2.lab

Having problems with what appears to be a simple query.

2007-01-17 Thread Daniel Smith
I have a table with numerous columns but needing to perform a query based on three columns: Lab_number, result, release_time. What I want to do is search for lab_number where there is a result but not released. The problem that is making this difficult for me, is that there are multiple entries

One big table or several smaller tables?

2006-11-27 Thread Daniel Smith
Assuming a decent spec server, would a simple search query on a big indexed table be quicker than searching the amount of data divided into separate tables? The kind of situation I have in mind is a database of events during a year, this table could top 1,000,000 enteries on the vague kind of sche

Re: Two tables, which did not match?

2002-03-29 Thread Daniel Smith
At 10:55 AM + 3/29/02, DL Neil wrote: >> We can hit: >> a) no collection >> b) a collection that hasn't had any photos moved/uploaded to it yet, >or.. >> c) a collection with one or more photos (the "normal, everything's >fine" case) >Let us know how you get on! Thanks again DL, my first s

anyone here take the MySQL training classes?

2002-03-29 Thread Daniel Smith
I am considering the intensive 1 week MySQL class coming up in SF. Has anyone here been through one of their classes? How did it go? The web site doesn't list a location, and they don't answer the phone (strikes 1 & 2...) Off-list responses are fine. I'd just like to know that someone found

Re: Two tables, which did not match?

2002-03-29 Thread Daniel Smith
At 10:55 AM + 3/29/02, DL Neil wrote: >> Scenario: >> - two tables, one for photos, and one for collections >> - zero or more photos can belong to a collection >> - the database may not know the collection_id requested >> (i.e. the user on the browser side did something to request >>

Two tables, which did not match?

2002-03-28 Thread Daniel Smith
I have a question about determining which case occurred when there are no matches - using two tables. Scenario: - two tables, one for photos, and one for collections - zero or more photos can belong to a collection - the database may not know the collection_id requested (i.e. the user on th