-- ==================================================================
-- sys.indexes.type 0 => heap - i.e. no Primary Key 
--					1 => clustered index
--					2 => non-clustered index
-- ==================================================================

SELECT	o.object_id
        , schemaname = OBJECT_SCHEMA_NAME(o.object_id)
		, tablename = o.NAME
		, PrimaryKey = CASE WHEN pk.object_id IS NULL THEN 'No Primary Key' ELSE '' END 
		, ClusteredIndexes = CASE WHEN ci.object_id IS NULL THEN 'No Clustered Index' ELSE '' END
		, NonClusteredIndexes = CASE WHEN nci.object_id IS NULL THEN 'No Non-Clustered Index' ELSE ''  END
		, [RowCount] = (SELECT SUM(p.Rows) from sys.partitions AS p where p.object_id=o.object_id) / (1+COUNT(ci.object_id)+COUNT(nci.object_id))
		, [IndexCount] = COUNT(ci.object_id)+COUNT(nci.object_id)
FROM sys.objects o
LEFT OUTER JOIN sys.indexes nci ON nci.object_id = o.object_id and nci.type=2
LEFT OUTER JOIN sys.indexes ci ON ci.object_id = o.object_id and ci.type=1
LEFT OUTER JOIN sys.indexes pk ON o.object_id = pk.object_id AND pk.is_primary_key = 1
WHERE o.Type='U' AND ((pk.object_id IS NULL) OR (ci.object_id IS NULL) OR (nci.object_id IS NULL))

GROUP BY o.object_id,
         OBJECT_SCHEMA_NAME(o.object_id), 
         o.NAME, 
		 CASE WHEN pk.object_id IS NULL THEN 'No Primary Key' ELSE '' END, 
		 CASE WHEN nci.object_id IS NULL THEN 'No Non-Clustered Index' ELSE '' END,
		 CASE WHEN ci.object_id IS NULL THEN 'No Clustered Index' ELSE '' END

ORDER BY TableName ASC

SELECT 
     schemaname = OBJECT_SCHEMA_NAME(o.object_id)
    ,tablename = o.NAME
FROM sys.objects o
INNER JOIN sys.indexes i ON i.OBJECT_ID = o.OBJECT_ID
-- tables that are heaps without any nonclustered indexes
WHERE (
        o.type = 'U'
        AND o.OBJECT_ID NOT IN (
            SELECT OBJECT_ID
            FROM sys.indexes
            WHERE index_id > 0
            )
        )
        --    OR
        -- table that have a clustered index without any nonclustered indexes
        --(o.type='U' 
        --        AND o.OBJECT_ID NOT IN (
        --    SELECT OBJECT_ID 
        --        FROM sys.indexes 
        --        WHERE index_id>1))  

select schema_name(tab.schema_id) as [schema_name], 
    tab.[name] as table_name
from sys.tables tab
    left outer join sys.indexes pk
        on tab.object_id = pk.object_id 
        and pk.is_primary_key = 1
where pk.object_id is null
order by schema_name(tab.schema_id),
    tab.[name]

ALTER TABLE Environmental
ADD CONSTRAINT PK_Environmental_nID PRIMARY KEY (nID[, optionalcolumns]);

CREATE NONCLUSTERED INDEX [IX_Environmental_dtDateTime]
ON [Environmental] ( [dtDateTime] asc )

-- First backup the database and Log.

-- Then set Recovery Mode to Simple
ALTER DATABASE MOI_20161206024518612 SET RECOVERY SIMPLE
Go

-- Then Shrink the Database Log to (almost) nothing
DBCC SHRINKDATABASE (MOI_20161206024518612)
go