Understanding Database

By default, n8n uses SQLite as the database. The credentials, workflows, executions and webhook all are decoupled and store in different tables.

Credentials Entity

The credentials are stored in the credentials_entity table with the following fields.

Column Name	Data Type	About
id	INTEGER	auto-incremented and unique for each row
name	VARCHAR	stores the name of the credentials given by the user
data	Text	stores the encrypted data
type	VARCHAR	refers to the type of credentials of the node
nodeAccess	TEXT	stores the information of the nodes that have access to these credentials
createdAt	DATETIME	stroes the date and time when the credentials were created
updatedAt	DATETIME	stores the date and time when the credentials were updated

The saved workflows are stored in the workdlow_entity table with the following fields.

Column Name	Data Type	About
id	INTEGER	auto-incremented and unique for each row
name	VARCHAR	stores the name of the workflow given by the user
active	BOOLEAN	stores the information about the active state of the workflow
nodes	TEXT	stores the information of the nodes and thier configurations
connections	TEXT	stores the information about the connection between the nodes
createdAt	DATETIME	stroes the date and time when the workflow was created
updatedAt	DATETIME	stores the date and time when the workflow was updated
settings	TEXT	stores the information about additional settings of the workflow
staticData	TEXT	stores the static data of the workflow