I'm looking for the best way to auto generate a serial number in ms access. Serial number is based on style selected and the next available number. Drop down menu 'Style' - 1, 2, or 3 2. Fm 2005 Download Completo Ripado here.

Look for next available number in that series 'number format is 000' and assign it to new record. Serial numbers are to appear as 1-000 or 2-001. Records will never exceed 999, therefore I'm not worried about only having a 3 digit number. Currently I have the following tables TRecords - Stores the data TStyle - is the 3 different styles with primary key 1,2, & 3 I'm creating the data entry form now where I plan on the clculation to take place probably on a change event or button click. Thanks in advance. Do the numbers need to be sequential? Will there be a different sequence for Style?

Unless there is a need for sequential numbers or different sequences, then I would just use an Autonumber field. The style and the serial number should not be stored together. They are two separate pieces of info and you can use a concatenation expression to display them together. If you do need sequential, please review my blog on Sequential numbering.

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Hope this helps, Scott Blog: Microsoft Access MVP since 2007. Firstly do not store the structured serial number as a single column, but concatenate the formatted values from numeric Style and SerialNumber columns into a single computed column in a query or a computed control in a form or report. Combining the data into a single column would introduce redundancy and prevent the enforcement of referential integrity. Mechwarrior 4 Vengeance Isometric Exercises more. The two columns in combination are a candidate key of the table so should be defined as such, either by making them the composite primary key (the easiest option) or by including both columns in a single unique index if a surrogate primary key such as an autonumber is employed. You'll find an example of serial numbering by group in CustomNumber.zip in my public databases folder at: If you have difficulty opening the link copy its text (NB, not the link location) and paste it into your browser's address bar. In this little demo file contacts are numbered sequentially by group (gender) using an amended version of the.

This caters for the possibility of conflicts in a multi-user environment without requiring the integrity of the database to be prejudiced by allowing Nulls in non-key columns. _____________________ Ken Sheridan, Stafford, England 'Don't write it down until you understand it!' - Richard Feynman.