Another question that I answered on a forum recently was about how to find the primary key column (or columns) for a table.
Here's an example of the code required:
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SELECT ic.index_column_id AS ColumnID, c.[name] AS ColumnName FROM sys.indexes AS i INNER JOIN sys.index_columns AS ic ON i.object_id = ic.object_id AND i.index_id = ic.index_id INNER JOIN sys.columns AS c ON i.object_id = c.object_id AND ic.column_id = c.column_id INNER JOIN sys.tables AS t ON t.object_id = i.object_id INNER JOIN sys.schemas AS s ON s.schema_id = t.schema_id WHERE i.is_primary_key <> 0 AND t.[name] = N'TestTable' -- table name AND s.[name] = N'dbo' -- schema name ORDER BY ColumnID; |
I hope that helps someone.