How Can I Find Tables Referencing a Specific Table in Oracle SQL Developer?

Finding Referential Tables in Oracle SQL Developer

When analyzing table relationships in Oracle SQL Developer, users may desire a mechanism to identify tables referencing a specific table. This is particularly useful in understanding foreign key dependencies and the impact of modifications.

Oracle SQL Developer does not currently offer a graphical user interface (GUI) element to retrieve this information. To determine which tables reference a given table, you must execute an SQL query or utilize external tools.

SQL Query Approach

You can execute the following SQL statement to retrieve tables referencing a specific table named "emp":

select table_name, constraint_name, status, owner
from all_constraints
where r_owner = '[schema_name]'
and constraint_type = 'R'
and r_constraint_name in
(
  select constraint_name from all_constraints
  where constraint_type in ('P', 'U')
  and table_name = '[emp_table_name]'
  and owner = '[schema_name]'
)
order by table_name, constraint_name

External Tool Example

Certain third-party tools, such as PLSQL Developer, provide additional functionality beyond Oracle SQL Developer's native capabilities. In PLSQL Developer, you can leverage the "References" tab to view tables referencing a selected table without the need for an SQL query.

Note: The SQL statement provided above assumes that references are defined using constraints. If relationships are established using natural keys or other mechanisms, the query may not yield accurate results.

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