Referential integrity.
only one relationship can exists between two tables in the MS ACCESS software
To ensure that the data being linked to is up to date.
Constraints.
Referential Integrity is a set of rules that a DBMS (Database management system) follows to ensure that there are matching values in the common field used to create the relationship between related tables and that protects the data in related tables to make sure that data is not accidentally deleted or changed.
You can link excel tables, text files, access tables, ODBC tables
Join Line
Join Line
Join Line
Reports in Access can be generated directly from database tables or through queries that have got their data from tables.
Primary key
Referential Integrity is a set of rules that a DBMS (Database management system) follows to ensure that there are matching values in the common field used to create the relationship between related tables and that protects the data in related tables to make sure that data is not accidentally deleted or changed.
relationship or join condition between a common column in each table. This connection allows us to retrieve related data from multiple tables in a database query. Join conditions typically involve matching values between the related columns in the tables being joined.