---
title: "Object Catalog Views (Transact-SQL) | Microsoft Docs"
ms.custom: ""
ms.date: 01/19/2019
ms.prod: sql
ms.prod_service: "database-engine"
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ms.technology: system-objects
ms.topic: "language-reference"
dev_langs: 
  - "TSQL"
helpviewer_keywords: 
  - "object catalog views [SQL Server]"
  - "catalog views [SQL Server], objects"
ms.assetid: e8670a6b-e15c-4126-8d2d-c9cfb968a12d
author: CarlRabeler
ms.author: carlrab
---
# Object Catalog Views (Transact-SQL)

[!INCLUDE[tsql-appliesto-ss2008-xxxx-xxxx-xxx-md](../../includes/tsql-appliesto-ss2008-xxxx-xxxx-xxx-md.md)]

This section contains links to the following catalog views.

:::row:::
    :::column:::
        [sys.allocation_units](../../relational-databases/system-catalog-views/sys-allocation-units-transact-sql.md)
        
        [sys.assembly_modules](../../relational-databases/system-catalog-views/sys-assembly-modules-transact-sql.md)
        
        [sys.check_constraints](../../relational-databases/system-catalog-views/sys-check-constraints-transact-sql.md)
        
        [sys.columns](../../relational-databases/system-catalog-views/sys-columns-transact-sql.md)
        
        [sys.computed_columns](../../relational-databases/system-catalog-views/sys-computed-columns-transact-sql.md)
        
        [sys.default_constraints](../../relational-databases/system-catalog-views/sys-default-constraints-transact-sql.md)
        
        [sys.events](../../relational-databases/system-catalog-views/sys-events-transact-sql.md)
        
        [sys.event_notifications](../../relational-databases/system-catalog-views/sys-event-notifications-transact-sql.md)
        
        [sys.extended_procedures](../../relational-databases/system-catalog-views/sys-extended-procedures-transact-sql.md)
        
        [sys.foreign_key_columns](../../relational-databases/system-catalog-views/sys-foreign-key-columns-transact-sql.md)
        
        [sys.foreign_keys](../../relational-databases/system-catalog-views/sys-foreign-keys-transact-sql.md)
        
        [sys.function_order_columns](../../relational-databases/system-catalog-views/sys-function-order-columns-transact-sql.md)
        
        [sys.hash_indexes](../../relational-databases/system-catalog-views/sys-hash-indexes-transact-sql.md)

        [sys.identity_columns](../../relational-databases/system-catalog-views/sys-identity-columns-transact-sql.md)
        
        [sys.index_columns](../../relational-databases/system-catalog-views/sys-index-columns-transact-sql.md)
        
        [sys.trigger_event_types](../../relational-databases/system-catalog-views/sys-trigger-event-types-transact-sql.md)
        
        [sys.trigger_events](../../relational-databases/system-catalog-views/sys-trigger-events-transact-sql.md)
        
        [sys.triggers](../../relational-databases/system-catalog-views/sys-triggers-transact-sql.md)
        
        [sys.views](../../relational-databases/system-catalog-views/sys-views-transact-sql.md)
        
        [sys.numbered_procedures](../../relational-databases/system-catalog-views/sys-numbered-procedures-transact-sql.md)

    :::column-end:::
    :::column:::
        [sys.objects](../../relational-databases/system-catalog-views/sys-objects-transact-sql.md)
        
        [sys.parameters](../../relational-databases/system-catalog-views/sys-parameters-transact-sql.md)
        
        [sys.partitions](../../relational-databases/system-catalog-views/sys-partitions-transact-sql.md)
        
        [sys.periods](../../relational-databases/system-catalog-views/sys-periods-transact-sql.md)
        
        [sys.procedures](../../relational-databases/system-catalog-views/sys-procedures-transact-sql.md)
        
        [sys.sequences](../../relational-databases/system-catalog-views/sys-sequences-transact-sql.md)

        [sys.service_queues](../../relational-databases/system-catalog-views/sys-service-queues-transact-sql.md)
        
        [sys.sql_dependencies](../../relational-databases/system-catalog-views/sys-sql-dependencies-transact-sql.md)
        
        [sys.sql_expression_dependencies](../../relational-databases/system-catalog-views/sys-sql-expression-dependencies-transact-sql.md)
        
        [sys.sql_modules](../../relational-databases/system-catalog-views/sys-sql-modules-transact-sql.md)
        
        [sys.stats](../../relational-databases/system-catalog-views/sys-stats-transact-sql.md)
        
        [sys.stats_columns](../../relational-databases/system-catalog-views/sys-stats-columns-transact-sql.md)
        
        [sys.synonyms](../../relational-databases/system-catalog-views/sys-synonyms-transact-sql.md)
        
        [sys.table_types](../../relational-databases/system-catalog-views/sys-table-types-transact-sql.md)
        
        [sys.tables](../../relational-databases/system-catalog-views/sys-tables-transact-sql.md)
        
        [sys.key_constraints](../../relational-databases/system-catalog-views/sys-key-constraints-transact-sql.md)
        
        [sys.masked_columns](../../relational-databases/system-catalog-views/sys-masked-columns-transact-sql.md)
        
        [sys.memory_optimized_tables_internal_attributes](../../relational-databases/system-catalog-views/sys-memory-optimized-tables-internal-attributes-transact-sql.md)
        
        [sys.numbered_procedure_parameters](../../relational-databases/system-catalog-views/sys-numbered-procedure-parameters-transact-sql.md)
        
    :::column-end:::
:::row-end:::
  
## See Also  
 [System Catalog Views](catalog-views-transact-sql.md)
 [System Views (Transact-SQL)](https://msdn.microsoft.com/library/35a6161d-7f43-4e00-bcd3-3091f2015e90)