basic many-to-many sql select query

Question

I think this should be easy, but it\'s evading me. I\'ve got a many-to-many relationship between Accounts and Account Groups. An Account can be in zero or more Groups, so I\

Answer 1

This

SELECT a.BankName, a.AcctNumber, a.Balance, ag.GroupName
FROM (Accounts a 
      LEFT JOIN JoinAccountsGroups jag 
      ON a.ID = jag.AID) 
      LEFT JOIN AccountGroups ag
      ON jag.GID = ag.GroupName;

Will select the data for the first table, however to concatenate the groups (Monthly, Payroll), you would need a User Defined Function (UDF), wich would not be available to Jet, so processing in PHP would be necessary.

You may wish to read Understanding SQL Joins. It refers to MySQL but applies to Jet, for the most part.