Mysql join statement not working...

Can someone let me know what the  problem is with this statement:

select b.branch, b.address,b.region, i.installer from supplier_branch b INNER JOIN
supplier_branch_map i ON supplier_branch.branch_id=supplier_branch_map.branch_id
order by supplier_branch.branch

The error I am getting is:

#1054 - Unknown column 'supplier_branch.branch_id' in 'on clause'

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Mukesh YadavFull Stack DeveloperCommented:
Error occurred because you provided wrong column name.

Can you share you tables(supplier_branch, supplier_branch_map) structure.
Ryan ChongBusiness Systems Analyst , ex-Senior Application EngineerCommented:
since you're using Alias clause, try this:

select b.branch, b.address,b.region, i.installer from supplier_branch b INNER JOIN
supplier_branch_map i ON b.branch_id=i.branch_id
order by b.branch

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Walter RitzelSenior Software EngineerCommented:
Also, there is a possibility of the casing of characters: altough in phpmyadmin or even mysqlworkbench this query will work all in lower case, maybe when called from your php code or python code, it does not work. MySQL is case sensitive regarding table and field names, so branch_id is not the same as Branch_ID, for example. So, please check your table structures, respect the case when typing the query and if you give alias to your tables, please use them on your query ON clause. So, all three answers here may help you to solve your problem.
aej1973Author Commented:
Thank you, it works.
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