ZXDB mysql query (newbie)

[xx3774]

Hi,

I've downloaded the zxdb sql file from github.
Installed mysql / heidi on my window 7 pc.

I'm trying to create a titles.csv file with the following fields.
id, title, publisher.

I can't seem find the publisher field?

Could some clever person modify my code to do this please?.

use zxdb;
select id,title from entries
into outfile 'c:\\zxdb\\titles.csv'
fields terminated by ','
enclosed by '"'
lines terminated by '\n';

many, many thanks

[PeterJ]

Hi [mention]xx3774[/mention]

Try this for the SQL query:

Code: Select all

select entries.id,entries.title,labels.name
from entries,publishers,labels
where entries.id = publishers.entry_id
and publishers.release_seq = 0
and publishers.label_id = labels.id
and labels.name like 'Firebird%'

It displays the games which were originally published by Firebird.

[Einar Saukas]

It's complicated. Each title can be published several times. And each time it's published, it can have multiple co-publishers.

If you only want to extract the first publisher from each title's original release:

Code: Select all

SELECT e.id, e.title, b.name as publisher
FROM entries e
INNER JOIN publishers p ON p.entry_id = e.id AND p.release_seq = 0 AND p.publisher_seq = 1
INNER JOIN labels b ON p.label_id = b.id;

However it's more accurate to extract the list of co-publishers (or single publisher) from each title's original release:

Code: Select all

SELECT e.id, e.title, GROUP_CONCAT(b.name ORDER BY p.publisher_seq SEPARATOR ', ') as publisher
FROM entries e
INNER JOIN publishers p ON p.entry_id = e.id AND p.release_seq = 0
INNER JOIN labels b ON p.label_id = b.id
GROUP BY e.id;

[Einar Saukas]

Hi @xx3774

Try this for the SQL query:

Code: Select all

select entries.id,entries.title,labels.name
from entries,publishers,labels
where entries.id = publishers.entry_id
and publishers.release_seq = 0
and publishers.label_id = labels.id
and labels.name like 'Firebird%'

It displays the games which were originally published by Firebird.

You will also need "and publishers.publisher_seq = 1" otherwise you will get 2 rows for titles like "Quadrax".

[PeterJ]

You will also need "and publishers.publisher_seq = 1" otherwise you will get 2 rows for titles like "Quadrax".

Good point [mention]Einar Saukas[/mention]

[mention]xx3774[/mention]

[mention]Einar Saukas[/mention] designed ZXDB so he is the expert!

[xx3774]

Thank you Einar & Peter

I'm getting an error message, I can't seem to find the publishers table?.
maybe I downloaded an old file?.

[PeterJ]

Both of the queries from Einar work find for me. Try this at the top of your code to make sure you are in the right database

Code: Select all

use zxdb;

I have not used HeidiSQL before, but as you say you don't seem to have all the tables listed on the left hand panel.

[PeterJ]

I have run the last query from [mention]Einar Saukas[/mention] and exported the CSV for you:

https://drive.google.com/file/d/1x-72vh ... sp=sharing

[xx3774]

Magic Peter, many thanks

[PeterJ]

May we ask what project you are working on?

[xx3774]

No project, just starting to learn mysql, I thought learning mysql + reliving my speccy youth would make it a bit more interesting.
Bit of an incentive to keep learning.

[xx3774]

Now I just have to figure out why I'm not seeing the publishers table.

[Einar Saukas]

Now I just have to figure out why I'm not seeing the publishers table.

Did you delete it by accident?

You better reload everything. Delete zxdb, then execute "ZXDB_mysql.sql" again.

[xx3774]

Hi Einar,

I will delete and re-download from githib.
I'll also install MariaDB just in case its an error with HeidiSql.
Thanks for the reply

[Einar Saukas]

You are welcome!

[xx3774]

Hi All,

What would the MySQL code be if I wanted to see All the Magazine Reviews + All the Magazine Adverts for a particular title .
For example, entries.id = 1, Licence to Kill.

Many thanks for any replys.

[Einar Saukas]

I'm traveling right now, without computer access. So I cannot check to be sure... But I think you just need to select from table "magrefs".

[kolbeck]

Try this for ads - also check table referencetypes, reviews are type 10 i think

SELECT m.name AS magazine,i.date_year AS issueyear,i.date_month AS issueno,
ref.page AS pageno,reft.text AS magazine_type,f.name AS magazine_text,
m.link_mask
FROM entries e
INNER JOIN magrefs ref
ON ref.entry_id = e.id
INNER JOIN features f
ON ref.feature_id = f.id
INNER JOIN referencetypes reft
ON ref.referencetype_id = reft.id
INNER JOIN issues i
ON ref.issue_id = i.id
INNER JOIN magazines m
ON i.magazine_id = m.id
WHERE e.id = 4010
AND ref.referencetype_id IN ( 1, 2, 3, 15 )

[xx3774]

Magic - Thank you kolbeck
works perfectly

[PeterJ]

[mention]xx3774[/mention]

Just so you know. If you use the at symbol '@' then start typing the user name, it should appear automatically. This also send the user a note that you have 'mentioned' them.

Peter

[xx3774]

[mention]PeterJ[/mention] good to know - thanks Peter

[kolbeck]

[mention]xx3774[/mention] - you're welcome, let me know if you need anything else. I'll try my best to support, while [mention]Einar Saukas[/mention] is on "vacation"

/Thomas

[xx3774]

Hi [mention]kolbeck[/mention],
your code selects a single title, e.id = 4010, how would I go about showing all titles?.

WHERE e.id = * doesn't seem to work, I'm guessing it's not that simple.

Try this for ads - also check table referencetypes, reviews are type 10 i think

SELECT m.name AS magazine,i.date_year AS issueyear,i.date_month AS issueno,
ref.page AS pageno,reft.text AS magazine_type,f.name AS magazine_text,
m.link_mask
FROM entries e
INNER JOIN magrefs ref
ON ref.entry_id = e.id
INNER JOIN features f
ON ref.feature_id = f.id
INNER JOIN referencetypes reft
ON ref.referencetype_id = reft.id
INNER JOIN issues i
ON ref.issue_id = i.id
INNER JOIN magazines m
ON i.magazine_id = m.id
WHERE e.id = 4010
AND ref.referencetype_id IN ( 1, 2, 3, 15 )

[kolbeck]

[mention]xx3774[/mention] - Just remove the e.id= XXXX (and also the AND)

So the WHERE clause looks like:
WHERE ref.referencetype_id IN ( 1, 2, 3, 15 )

/Thomas

[xx3774]

Wow, thank you [mention]kolbeck[/mention] you're a star!