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Have you actually drawn any relationships? Base will not do that for you. Just adding the tables in the 'Relationships Window' will not create the relationships automagically. You must click and hold on the one table element (remote key) and drag over to the related table's element (primary key), then release the mouse button. Base will then draw a line between the two. Note, the order of the drag is important. It determines the type of join. Joins are confusing to me too, so I can't help much there. I had to experiment with the direction to get it to work right. I think it was remote key to primary key, but I am not sure of that any more.

Warning! The way the SQL language is set up, if either of the ends of a join (relationship) is NULL, then the record will be discarded and not show up in your result set. No warnings, no errors. Data records will just be missing. IMHO, this is stupid (my mantra is: "thou shall not lose data"), but that is how the SQL language was set up. So, make sure any joined data elements in all of your table records are not NULL. Note that NULL is not zero (0) and vice-versa! NULL means that there is no data in the record element. I use a lot of remote keys in my database main tables that point to primary keys (options) in other tables. In those other tables, I have made it a point to make the data elements of the first record to be "-", which is my equivalent of unknown, just to have something to select that is not NULL. You could probably use a blank (" "), but I prefer seeing the "-" in forms and reports. Most times in reports, it is hard to see anyway. Seeing the "-" tells me the field is not NULL.
Hope this helps.
Girvin Herr

Ian Whitfield wrote:
Hi All

Re - My previous post.... Have been doing some Googling etc and found the 'Relationships Window' for setting Relationships.

I can get the Window up, select my Tables but it _DOES NOT_ draw any connecting lines or set any Relationships!!??

Is this another "Gotcha" of using MySQL and Base together? As it does _NOT_ seem to work at all!!

I'm using PCLinuxOS 2012, LO Base and MySQL 5.1.55

Pretoria RSA.

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