Category SQL Server

Query 1 – Tables with primary keys

 
 

SQL 2005

SELECT c.name, b.name, a.name

FROM sys.key_constraints a

INNER JOIN sys.tables b ON a.parent_object_id = b.OBJECT_ID

INNER JOIN sys.schemas c ON a.schema_id = c.schema_id

WHERE a.type = ‘PK’

 
 

SQL 2000

SELECT c.name, a.name, b.name

FROM sysobjects a

INNER JOIN sysindexes b ON a.id = b.id

INNER JOIN sysusers c ON a.uid = c.uid

WHERE (b.status & 2048)<>0

 
 

Query 2 – Tables without primary keys

 
 

SQL 2005

SELECT c.name, b.name

FROM sys.tables b

INNER JOIN sys.schemas c ON b.schema_id = c.schema_id

WHERE b.type = ‘U’

AND NOT EXISTS

(SELECT a.name

FROM sys.key_constraints a

WHERE a.parent_object_id = b.OBJECT_ID

AND a.schema_id = c.schema_id

AND a.type = ‘PK’ )

 
 

SQL 2000

SELECT c...

Enabling Memory Support for Over 4 GB of Physical Memory

 
 

To enable Address Windowing Extensions (AWE) for Microsoft SQL Server, you must run the SQL Server 2005 Database Engine under a Microsoft Windows account that has been assigned the Lock Pages in Memory option and use sp_configure to set the awe enabled option to 1. The Maximize data throughput for network application option of Network Connection in Control Panel must be selected.

 
 

To enable AWE for an instance of SQL Server 2005, use sp_configure to set the awe enabled option to 1, and then restart SQL Server...

DBCC SHOWCONTIG
[ (
    { table_name | table_id | view_name | view_id }
    [ , index_name | index_id ]
) ]
    [ WITH
        {
         [ , [ ALL_INDEXES ] ]
         [ , [ TABLERESULTS ] ]
         [ , [ FAST ] ]
         [ , [ ALL_LEVELS ] ]
         [ NO_INFOMSGS ]
         }
    ]

  
 

 
 

Deve-se olhar para o campo Scan Density que deve estar próximo a 100% caso contrario devemos eliminar a fragmentação com um reindex ou recriar o objeto

 
 

Ex.

 
 

DBCC SHOWCONTIG (‘tablename’) — mosta informações sobre uma tabela ...