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Tech Tip: Primary key manager assignment on a table is only one time
PRODUCT: 4D | VERSION: 14.0 | PLATFORM: Mac & Win
Published On: April 4, 2014

The Primary key manager is "an assistant intended to facilitate the resolution of errors related to the presence of tables without primary keys, particularly in the context of a journaled database". Once the primary key is assigned to a table through the PK manager, any attempt to redit is NOT POSSIBLE. The intention of the PK manager is to assist the conversion of a database from the previous version for the first time the tables did not have a primary key. In order to modify the primary key in a table, the user would have to go to the structure editor manually.

The primary key can be removed by right clicking (contextual click for Mac) with the mouse to delete the primary key:




The primary key can be created by right clicking (contextual click for Mac) with the mouse to a selected field:



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