--- title: "Primary value" description: "Primary value" position: 580 category: "Product" menuTitle: "Primary value" --- ## What is a Primary Value ? - Primary value as the name stands is the primary or main value within a row of a table that you generally associate that row with. - It should be usually associated with a column which is uniquely identifiable. However, this uniqueness is not enforced at the database level. ## What is the use of Primary Value ? - Within a spreadsheet, primary value are always highlighted so that it is easier to recognise what row we are in. - And when LinkToAnotherRecord is created between two tables - it is the primary value that appears in LinkToAnotheRecord column. #### Example : Primary Value highlighted in actor table actor #### Example : Primary Value highlighted in film table film-table #### Example : Primary Value associated when LinkToAnotherRecord is created actor-film ## How is Primary Value identfied for existing database tables ? - It is usually the first column after the primary key which is not a number. - If there is no column which is not a number then the column adjacent to primary key is chosen. ## Can I change the Primary Value to another column within tables ? - Yes, you can. Hover over column which you want as primary column and click ```Set as Primary Value```