Can't Figure Join - Codewalkers

Codewalkers Forums Sponsor:

You don't need a fax machine to get faxes. Get a fax-to-email fax number from CallWave. Try it free.

April 12th, 2008, 08:16 AM

delboy2405

Registered User

Join Date: Apr 2008

Posts: 4

Time spent in forums: 2 h 33 m 25 sec
Reputation Power: 0

MySQL 5 - Can't Figure Join

Hi,

First post here, just learning both PHP and MySQL so please excuse my ignorance.

I have 3 tables, one where main data is held and two that hold lists, Categories and Types.

I currently have query

Code:

SELECT * FROM systems_main_data WHERE bet_cat_id = 1

which will display only items within certain category which is fine.

My issue is on system_main_data table type_id relates to type_id in bet_type table. I can't figure out how to display the type name instead of the ID.

Please see tables below

Systems_main_data
Field Type Null Key Default Extra
main_data_id mediumint(8) unsigned NO PRI NULL auto_increment
main_data_name varchar(100) NO
bet_cat_id varchar(50) NO
main_data_description text YES NULL
main_data_cost float NO
main_data_url varchar(255) NO
reg_date datetime NO
type_id mediumint(9) NO

systems_bet_cat
bet_cat_id mediumint(8) unsigned NO PRI NULL auto_increment
bet_cat_name varchar(50) NO UNI

bet_type
type_id mediumint(8) unsigned NO PRI NULL auto_increment
type_name varchar(10) NO

April 12th, 2008, 11:23 AM

delboy2405

Registered User

Join Date: Apr 2008

Posts: 4

Time spent in forums: 2 h 33 m 25 sec
Reputation Power: 0

Resolved

With help from my visual quickpro book I figured out myself.

If anyone interested see query below

Code:

SELECT * FROM systems_main_data LEFT JOIN bet_type USING (type_id) WHERE bet_cat_id = 1;

Quote:

Originally Posted by delboy2405

Code:

SELECT * FROM systems_main_data WHERE bet_cat_id = 1

Last edited by delboy2405 : April 13th, 2008 at 06:44 AM.

Viewing: Codewalkers Forums > Other Technologies > Database Help > MySQL 5 - Can't Figure Join

« Previous Thread | Next Thread »

Thread Tools	Search this Thread
Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off

View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox

Forum Jump

Free IT White Papers!

Accelerating Trading Partner Performance
One in five. That's how many partner transactions have at least one error. That is an amazing statistic, particularly given the extraordinary leaps in innovation across the global supply chain during the past two decades. Download this white paper to learn more.

Competing on Analytics
This Tech Analysis is designed to help identify characteristics shared by analytics competitors, and includes information about 32 organizations that have made a commitment to quantitative, fact-based analysis.

Cost Effective Scaling with Virtualization and Coyote Point Systems
An overview of the industry trend toward virtualization, how server consolidation has increased the importance of application uptime and the steps being taken to integrate load balancing technology with virtualized servers.

Five Checkpoints to Implementing IP Telephony
Implementation planning for IP PBX software and IP telephony has become vital as businesses replace discontinued legacy PBX phone systems. This informative whitepaper outlines five "checkpoints" for any implementation plan that will help make IP communications a successful proposition.

Hosted Email Security: Staying Ahead of New Threats
In the last two years, email has become a fierce battleground between the nefarious forces of spam and malware, and the heroes of messaging protection. The spam volumes increased alarmingly every month, bringing clever new forms of phishing and virus propagation attacks.

More Free IT White Papers!