Table Wizard - Set Primary Key
Specifies a field in the table to be used as a primary key.
Create a primary key
Select to create a primary key. Add a primary key to every database table to uniquely identify each record. For some database systems within LibreOffice, a primary key is mandatory for editing the tables.
Automatically add a primary key
Select to automatically add a primary key as an additional field.
Use an existing field as a primary key
Select to use an existing field with unique values as a primary key.
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Select the field name.
Select to automatically insert a value and increment the field's value for each new record. The database must support automatic incrementation in order to use the Auto value feature.
Define primary key by several fields
Select to create a primary key from a combination of several existing fields.
Select a field and click > to add it to the list of primary key fields.
Primary key fields
Select a field and click < to remove it from the list of primary key fields. The primary key is created as a concatenation of the fields in this list, from top to bottom.