How to get list of all tables that has identity columns

Question

I would like to learn how to fetch list of all tables that has identity columns from a MS SQL database.

Answer 1

I like this approach because it uses a join instead of a WHERE EXISTS or a call to COLUMNPROPERTY. Note that the group by is only necessary if you a) have tables with more than one IDENTITY column and b) don't want duplicate results:

SELECT 
    SchemaName = s.name,
    TableName = t.name
FROM
    sys.schemas AS s
    INNER JOIN sys.tables AS t ON s.schema_id = t.schema_id
    INNER JOIN sys.columns AS c ON t.object_id = c.object_id
    INNER JOIN sys.identity_columns AS ic on c.object_id = ic.object_id AND c.column_id = ic.column_id
GROUP BY
    s.name,
    t.name
ORDER BY
    s.name,
    t.name;