View Primary Key in PL/SQL: Quick Guide

1 year ago
Isabella Edwards
1 minute

You can view the primary key of a table in PL/SQL by using the following method:

Utilize the DESCRIBE command:

DESCRIBE table_name;

This command will display the structure of the table, including the primary key column and other important information.

Utilize the USER_CONSTRAINTS view:

SELECT constraint_name, constraint_type
FROM user_constraints
WHERE table_name = 'table_name';

This command will display all constraints for the specified table, including the primary key constraint. A constraint type of ‘P’ indicates a primary key constraint.

Utilizing the ALL_CONS_COLUMNS view:

SELECT column_name
FROM all_cons_columns
WHERE constraint_name = (SELECT constraint_name
                         FROM user_constraints
                         WHERE table_name = 'table_name'
                         AND constraint_type = 'P');

This command will display the primary key column names of the specified table.

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