--- title: "sys.databases (Transact-SQL)" description: sys.databases (Transact-SQL) author: rwestMSFT ms.author: randolphwest ms.date: 06/19/2023 ms.service: sql ms.subservice: system-objects ms.topic: "reference" f1_keywords: - "databases" - "databases_TSQL" - "sys.databases" - "sys.databases_TSQL" helpviewer_keywords: - "sys.databases catalog view" dev_langs: - "TSQL" monikerRange: ">=aps-pdw-2016||=azuresqldb-current||=azure-sqldw-latest||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current||=fabric" --- # sys.databases (Transact-SQL) [!INCLUDE [sql-asdb-asdbmi-asa-pdw-fabricse-fabricdw](../../includes/applies-to-version/sql-asdb-asdbmi-asa-pdw-fabricse-fabricdw.md)] Contains one row per database in the instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]. If a database isn't `ONLINE`, or `AUTO_CLOSE` is set to `ON` and the database is closed, the values of some columns may be `NULL`. If a database is `OFFLINE`, the corresponding row isn't visible to low-privileged users. To see the corresponding row if the database is `OFFLINE`, a user must have at least the `ALTER ANY DATABASE` server-level permission, or the `CREATE DATABASE` permission in the `master` database. | Column name | Data type | Description | | --- | --- | --- | | **name** | **sysname** | Name of database, unique within an instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] or within a [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] logical server. | | **database_id** | **int** | ID of the database, unique within an instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)].

In [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)], the values are unique within a logical server, and are joinable with [sys.database_service_objectives](../../relational-databases/system-catalog-views/sys-database-service-objectives-azure-sql-database.md) on the `database_id` column, but not with other system views where the `database_id` column is present. For details, see [DB_ID](../../t-sql/functions/db-id-transact-sql.md#remarks).| | **source_database_id** | **int** | Non-NULL = ID of the source database of this database snapshot.
NULL = Not a database snapshot. | | **owner_sid** | **varbinary(85)** | SID (Security-Identifier) of the external owner of the database, as registered to the server. For information about who can own a database, see the **ALTER AUTHORIZATION for databases** section of [ALTER AUTHORIZATION](../../t-sql/statements/alter-authorization-transact-sql.md). | | **create_date** | **datetime** | Date the database was created or renamed. For `tempdb`, this value changes every time the server restarts. | | **compatibility_level** | **tinyint** | Integer corresponding to the version of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] for which behavior is compatible.

70 - [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] 7.0 through [!INCLUDE[sql2008-md](../../includes/sql2008-md.md)]

80 - [!INCLUDE[ssVersion2000](../../includes/ssversion2000-md.md)] through [!INCLUDE [sql2008r2-md](../../includes/sql2008r2-md.md)]

90 - [!INCLUDE[sql2008-md](../../includes/sql2008-md.md)] through [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)]

100 - [!INCLUDE[sql2008-md](../../includes/sql2008-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]

110 - [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]

120 - [!INCLUDE[ssSQL14](../../includes/sssql14-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]

130 - [!INCLUDE[sssql16-md](../../includes/sssql16-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]

140 - [!INCLUDE[ssSQL17](../../includes/sssql17-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]

150 - [!INCLUDE[sql-server-2019](../../includes/sssql19-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]

160 - [!INCLUDE[sql-server-2022](../../includes/sssql22-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **collation_name** | **sysname** | Collation for the database. Acts as the default collation in the database.
NULL = Database isn't online or AUTO_CLOSE is set to ON and the database is closed. | | **user_access** | **tinyint** | User-access setting:
0 = MULTI_USER specified
1 = SINGLE_USER specified
2 = RESTRICTED_USER specified | | **user_access_desc** | **nvarchar(60)** | Description of user-access setting. | | **is_read_only** | **bit** | 1 = Database is READ_ONLY
0 = Database is READ_WRITE | | **is_auto_close_on** | **bit** | 1 = AUTO_CLOSE is ON
0 = AUTO_CLOSE is OFF | | **is_auto_shrink_on** | **bit** | 1 = AUTO_SHRINK is ON
0 = AUTO_SHRINK is OFF | | **state** | **tinyint** | **Value**
0 = ONLINE
1 = RESTORING
2 = RECOVERING 1
3 = RECOVERY_PENDING 1
4 = SUSPECT
5 = EMERGENCY 1
6 = OFFLINE 1
7 = COPYING 2
10 = OFFLINE_SECONDARY 2

**Note:** For Always On databases, query the `database_state` or `database_state_desc` columns of [sys.dm_hadr_database_replica_states](../../relational-databases/system-dynamic-management-views/sys-dm-hadr-database-replica-states-transact-sql.md).

1 **Applies to**: [!INCLUDE[sql2008-md](../../includes/sql2008-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]
2 **Applies to**: [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] [!INCLUDE[ssGeoDR](../../includes/ssgeodr-md.md)] | | **state_desc** | **nvarchar(60)** | Description of the database state. See state. | | **is_in_standby** | **bit** | Database is read-only for restore log. | | **is_cleanly_shutdown** | **bit** | 1 = Database shut down cleanly; no recovery required on startup
0 = Database didn't shut down cleanly; recovery is required on startup | | **is_supplemental_logging_enabled** | **bit** | 1 = SUPPLEMENTAL_LOGGING is ON
0 = SUPPLEMENTAL_LOGGING is OFF | | **snapshot_isolation_state** | **tinyint** | State of snapshot-isolation transactions being allowed, as set by the ALLOW_SNAPSHOT_ISOLATION option:
0 = Snapshot isolation state is OFF (default). Snapshot isolation is disallowed.
1 = Snapshot isolation state ON. Snapshot isolation is allowed.
2 = Snapshot isolation state is in transition to OFF state. All transactions have their modifications versioned. Can't start new transactions using snapshot isolation. The database remains in the transition to OFF state until all transactions that were active when ALTER DATABASE was run can be completed.
3 = Snapshot isolation state is in transition to ON state. New transactions have their modifications versioned. Transactions can't use snapshot isolation until the snapshot isolation state becomes 1 (ON). The database remains in the transition to ON state until all update transactions that were active when ALTER DATABASE was run can be completed. | | **snapshot_isolation_state_desc** | **nvarchar(60)** | Description of state of snapshot-isolation transactions being allowed, as set by the ALLOW_SNAPSHOT_ISOLATION option. | | **is_read_committed_snapshot_on** | **bit** | 1 = READ_COMMITTED_SNAPSHOT option is ON. Read operations under the read-committed isolation level are based on snapshot scans and don't acquire locks.
0 = READ_COMMITTED_SNAPSHOT option is OFF (default). Read operations under the read-committed isolation level use share locks. | | **recovery_model** | **tinyint** | Recovery model selected:
1 = FULL
2 = BULK_LOGGED
3 = SIMPLE | | **recovery_model_desc** | **nvarchar(60)** | Description of recovery model selected. | | **page_verify_option** | **tinyint** | Setting of PAGE_VERIFY option:
0 = NONE
1 = TORN_PAGE_DETECTION
2 = CHECKSUM | | **page_verify_option_desc** | **nvarchar(60)** | Description of PAGE_VERIFY option setting. | | **is_auto_create_stats_on** | **bit** | 1 = AUTO_CREATE_STATISTICS is ON
0 = AUTO_CREATE_STATISTICS is OFF | | **is_auto_create_stats_incremental_on** | **bit** | Indicates the default setting for the incremental option of auto stats.
0 = auto create stats are non-incremental
1 = auto create stats are incremental if possible

**Applies to**: [!INCLUDE[ssSQL14](../../includes/sssql14-md.md)] and later versions. | | **is_auto_update_stats_on** | **bit** | 1 = AUTO_UPDATE_STATISTICS is ON
0 = AUTO_UPDATE_STATISTICS is OFF | | **is_auto_update_stats_async_on** | **bit** | 1 = AUTO_UPDATE_STATISTICS_ASYNC is ON
0 = AUTO_UPDATE_STATISTICS_ASYNC is OFF | | **is_ansi_null_default_on** | **bit** | 1 = ANSI_NULL_DEFAULT is ON
0 = ANSI_NULL_DEFAULT is OFF | | **is_ansi_nulls_on** | **bit** | 1 = ANSI_NULLS is ON
0 = ANSI_NULLS is OFF | | **is_ansi_padding_on** | **bit** | 1 = ANSI_PADDING is ON
0 = ANSI_PADDING is OFF | | **is_ansi_warnings_on** | **bit** | 1 = ANSI_WARNINGS is ON
0 = ANSI_WARNINGS is OFF | | **is_arithabort_on** | **bit** | 1 = ARITHABORT is ON
0 = ARITHABORT is OFF | | **is_concat_null_yields_null_on** | **bit** | 1 = CONCAT_NULL_YIELDS_NULL is ON
0 = CONCAT_NULL_YIELDS_NULL is OFF | | **is_numeric_roundabort_on** | **bit** | 1 = NUMERIC_ROUNDABORT is ON
0 = NUMERIC_ROUNDABORT is OFF | | **is_quoted_identifier_on** | **bit** | 1 = QUOTED_IDENTIFIER is ON
0 = QUOTED_IDENTIFIER is OFF | | **is_recursive_triggers_on** | **bit** | 1 = RECURSIVE_TRIGGERS is ON
0 = RECURSIVE_TRIGGERS is OFF | | **is_cursor_close_on_commit_on** | **bit** | 1 = CURSOR_CLOSE_ON_COMMIT is ON
0 = CURSOR_CLOSE_ON_COMMIT is OFF | | **is_local_cursor_default** | **bit** | 1 = CURSOR_DEFAULT is local
0 = CURSOR_DEFAULT is global | | **is_fulltext_enabled** | **bit** | 1 = Full-text is enabled for the database
0 = Full-text is disabled for the database | | **is_trustworthy_on** | **bit** | 1 = Database has been marked trustworthy
0 = Database hasn't been marked trustworthy
By default, restored or attached databases have the trustworthy not enabled. | | **is_db_chaining_on** | **bit** | 1 = Cross-database ownership chaining is ON
0 = Cross-database ownership chaining is OFF | | **is_parameterization_forced** | **bit** | 1 = Parameterization is FORCED
0 = Parameterization is SIMPLE | | **is_master_key_encrypted_by_server** | **bit** | 1 = Database has an encrypted master key
0 = Database doesn't have an encrypted master key | | **is_query_store_on** | **bit** | 1 = The query store is enable for this database. Check [sys.database_query_store_options](../../relational-databases/system-catalog-views/sys-database-query-store-options-transact-sql.md) to view the query store status.
0 = The query store isn't enabled

**Applies to**: [!INCLUDE[sssql16-md](../../includes/sssql16-md.md)] and later versions. | | **is_published** | **bit** | 1 = Database is a publication database in a transactional or snapshot replication topology
0 = Isn't a publication database | | **is_subscribed** | **bit** | This column isn't used. It will always return 0, regardless of the subscriber status of the database. | | **is_merge_published** | **bit** | 1 = Database is a publication database in a merge replication topology
0 = Isn't a publication database in a merge replication topology | | **is_distributor** | **bit** | 1 = Database is the distribution database for a replication topology
0 = Isn't the distribution database for a replication topology | | **is_sync_with_backup** | **bit** | 1 = Database is marked for replication synchronization with backup
0 = Isn't marked for replication synchronization with backup | | **service_broker_guid** | **uniqueidentifier** | Identifier of the service broker for this database. Used as the **broker_instance** of the target in the routing table. | | **is_broker_enabled** | **bit** | 1 = The broker in this database is currently sending and receiving messages.
0 = All sent messages will stay on the transmission queue and received messages won't be put on queues in this database.
By default, restored or attached databases have the broker disabled. The exception to this is database mirroring where the broker is enabled after failover. | | **log_reuse_wait** | **tinyint** | Reuse of transaction log space is currently waiting on one of the following as of the last checkpoint. For more detailed explanations of these values, see [The Transaction Log](../../relational-databases/logs/the-transaction-log-sql-server.md).
**Value**
0 = Nothing
1 = Checkpoint (When a database has a memory-optimized data filegroup, you should expect to see the `log_reuse_wait` column indicate `checkpoint` or `xtp_checkpoint`) 1
2 = Log Backup 1
3 = Active backup or restore 1
4 = Active transaction 1
5 = Database mirroring 1
6 = Replication 1
7 = Database snapshot creation 1
8 = Log scan
9 = An Always On Availability Groups secondary replica is applying transaction log records of this database to a corresponding secondary database. 2
9 = Other (Transient) 3
10 = For internal use only 2
11 = For internal use only 2
12 = For internal use only 2
13 = Oldest page 2
14 = Other 2
16 = XTP_CHECKPOINT (When a database has a memory-optimized data filegroup, you should expect to see the `log_reuse_wait` column indicate `checkpoint` or `xtp_checkpoint`) 4
17 = sLog scanning when [Accelerated Database Recovery](../accelerated-database-recovery-concepts.md#adr-recovery-components) is used 5

1 **Applies to**: [!INCLUDE[sql2008-md](../../includes/sql2008-md.md)] and later versions
2 **Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions
3 **Applies to**: [!INCLUDE [sql2008r2-md](../../includes/sql2008r2-md.md)] and earlier versions
4 **Applies to**: [!INCLUDE[ssSQL14](../../includes/sssql14-md.md)] and later versions
5 **Applies to**: [!INCLUDE[sql-server-2019](../../includes/sssql19-md.md)] and later versions | | **log_reuse_wait_desc** | **nvarchar(60)** | Description of reuse of transaction log space is currently waiting on as of the last checkpoint. Possible values:
NOTHING
CHECKPOINT
LOG_BACKUP
ACTIVE_BACKUP_OR_RESTORE
ACTIVE_TRANSACTION
DATABASE_MIRRORING
REPLICATION
DATABASE_SNAPSHOT_CREATION
LOG_SCAN
AVAILABILITY_REPLICA
OLDEST_PAGE
XTP_CHECKPOINT
SLOG_SCAN
| | **is_date_correlation_on** | **bit** | 1 = DATE_CORRELATION_OPTIMIZATION is ON
0 = DATE_CORRELATION_OPTIMIZATION is OFF | | **is_cdc_enabled** | **bit** | 1 = Database is enabled for change data capture. For more information, see [sys.sp_cdc_enable_db (Transact-SQL)](../../relational-databases/system-stored-procedures/sys-sp-cdc-enable-db-transact-sql.md). | | **is_encrypted** | **bit** | Indicates whether the database is encrypted (reflects the state last set by using the `ALTER DATABASE SET ENCRYPTION` clause). Can be one of the following values:
1 = Encrypted
0 = Not Encrypted
For more information about database encryption, see [Transparent Data Encryption (TDE)](../../relational-databases/security/encryption/transparent-data-encryption.md).
If the database is in the process of being decrypted, `is_encrypted` shows a value of 0. You can see the state of the encryption process by using the [sys.dm_database_encryption_keys](../../relational-databases/system-dynamic-management-views/sys-dm-database-encryption-keys-transact-sql.md) dynamic management view. | | **is_honor_broker_priority_on** | **bit** | Indicates whether the database honors conversation priorities (reflects the state last set by using the `ALTER DATABASE SET HONOR_BROKER_PRIORITY` clause). Can be one of the following values:
1 = HONOR_BROKER_PRIORITY is ON
0 = HONOR_BROKER_PRIORITY is OFF
By default, restored or attached databases have the broker priority off. | | **replica_id** | **uniqueidentifier** | Unique identifier of the local [!INCLUDE[ssHADR](../../includes/sshadr-md.md)] availability replica of the availability group, if any, in which the database is participating.
NULL = database isn't part of an availability replica of in availability group.

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **group_database_id** | **uniqueidentifier** | Unique identifier of the database within an Always On availability group, if any, in which the database is participating. **group_database_id** is the same for this database on the primary replica and on every secondary replica on which the database has been joined to the availability group.
NULL = database isn't part of an availability replica in any availability group.

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **resource_pool_id** | **int** | The ID of the resource pool that is mapped to this database. This resource pool controls total memory available to memory-optimized tables in this database.

**Applies to**: [!INCLUDE[ssSQL14](../../includes/sssql14-md.md)] and later versions | | **default_language_lcid** | **smallint** | Indicates the local ID (lcid) of the default language of a contained database.

**Note:** Functions as the [Configure the default language Server Configuration Option](../../database-engine/configure-windows/configure-the-default-language-server-configuration-option.md) of `sp_configure`. This value is **null** for a non-contained database.

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **default_language_name** | **nvarchar(128)** | Indicates the default language of a contained database.
This value is **null** for a non-contained database.

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **default_fulltext_language_lcid** | **int** | Indicates the locale ID (lcid) of the default fulltext language of the contained database.

**Note:** Functions as the default [Configure the default full-text language Server Configuration Option](../../database-engine/configure-windows/configure-the-default-full-text-language-server-configuration-option.md) of `sp_configure`. This value is **null** for a non-contained database.

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **default_fulltext_language_name** | **nvarchar(128)** | Indicates the default fulltext language of the contained database.
This value is **null** for a non-contained database.

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **is_nested_triggers_on** | **bit** | Indicates whether or not nested triggers are allowed in the contained database.
0 = nested triggers aren't allowed
1 = nested triggers are allowed

**Note:** Functions as the [Configure the nested triggers Server Configuration Option](../../database-engine/configure-windows/configure-the-nested-triggers-server-configuration-option.md) of `sp_configure`. This value is **null** for a non-contained database. For more information, see [sys.configurations (Transact-SQL)](../../relational-databases/system-catalog-views/sys-configurations-transact-sql.md).

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **is_transform_noise_words_on** | **bit** | Indicates whether or noise words should be transformed in the contained database.
0 = noise words shouldn't be transformed.
1 = noise words should be transformed.

**Note:** Functions as the [transform noise words Server Configuration Option](../../database-engine/configure-windows/transform-noise-words-server-configuration-option.md) of `sp_configure`. This value is **null** for a non-contained database. For more information, see [sys.configurations (Transact-SQL)](../../relational-databases/system-catalog-views/sys-configurations-transact-sql.md).

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions | | **two_digit_year_cutoff** | **smallint** | Indicates a value of a number between 1753 and 9999 to represent the cutoff year for interpreting two-digit years as four-digit years.

**Note:** Functions as the [Configure the two digit year cutoff Server Configuration Option](../../database-engine/configure-windows/configure-the-two-digit-year-cutoff-server-configuration-option.md) of `sp_configure`. This value is **null** for a non-contained database. For more information, see [sys.configurations (Transact-SQL)](../../relational-databases/system-catalog-views/sys-configurations-transact-sql.md).

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **containment** | **tinyint not null** | Indicates the containment status of the database.
0 = database containment is off. **Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]
1 = database is in partial containment **Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions | | **containment_desc** | **nvarchar(60) not null** | Indicates the containment status of the database.
NONE = legacy database (zero containment)
PARTIAL = partially contained database

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **target_recovery_time_in_seconds** | **int** | The estimated time to recover the database, in seconds. Nullable.

**Applies to**: [!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **delayed_durability** | **int** | The delayed durability setting:
0 = DISABLED
1 = ALLOWED
2 = FORCED
For more information, see [Control Transaction Durability](../../relational-databases/logs/control-transaction-durability.md).

**Applies to**: [!INCLUDE[ssSQL14](../../includes/sssql14-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]. | | **delayed_durability_desc** | **nvarchar(60)** | The delayed durability setting:
DISABLED
ALLOWED
FORCED

**Applies to**: [!INCLUDE[ssSQL14](../../includes/sssql14-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)]. | | **is_memory_optimized_elevate_to_snapshot_on** | **bit** | Memory-optimized tables are accessed using SNAPSHOT isolation when the session setting TRANSACTION ISOLATION LEVEL is set to a lower isolation level, READ COMMITTED or READ UNCOMMITTED.
1 = Minimum isolation level is SNAPSHOT.
0 = Isolation level isn't elevated. | | **is_federation_member** | **bit** | Indicates if the database is a member of a federation.

**Applies to**: [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **is_remote_data_archive_enabled** | **bit** | Indicates whether the database is stretched.
0 = The database isn't Stretch-enabled.
1 = The database is Stretch-enabled.

**Applies to**: [!INCLUDE[sssql16-md](../../includes/sssql16-md.md)] and later versions
For more information, see [Stretch Database](../../sql-server/stretch-database/stretch-database.md). | | **is_mixed_page_allocation_on** | **bit** | Indicates whether tables and indexes in the database can allocate initial pages from mixed extents.
0 = Tables and indexes in the database always allocate initial pages from uniform extents.
1 = Tables and indexes in the database can allocate initial pages from mixed extents.
For more information, see the `SET MIXED_PAGE_ALLOCATION` option of [ALTER DATABASE SET Options (Transact-SQL)](../../t-sql/statements/alter-database-transact-sql-set-options.md).

**Applies to**: [!INCLUDE[sssql16-md](../../includes/sssql16-md.md)] and later versions | | **is_temporal_history_retention_enabled** | **bit** | Indicates whether temporal retention policy cleanup task is enabled.

1 = temporal retention is enabled
0 = temporal retention is disabled

**Applies to**: [!INCLUDE[ssSQL17](../../includes/sssql17-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **catalog_collation_type** | **int** | The catalog collation setting:
0 = DATABASE_DEFAULT
2 = SQL_Latin_1_General_CP1_CI_AS

**Applies to**: [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **catalog_collation_type_desc** | **nvarchar(60)** | The catalog collation setting:
DATABASE_DEFAULT
SQL_Latin_1_General_CP1_CI_AS

**Applies to**: [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **physical_database_name** | **nvarchar(128)** | For [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)], the physical name of the database. For [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)], a unique identifier for the current physical database corresponding to the user database. Changing the database service level objective or restoring the database will cause this value to change.

**Applies to**: [!INCLUDE[sql-server-2019](../../includes/sssql19-md.md)] and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **is_result_set_caching_on** | **bit** | Indicates whether result set caching is enabled.
1 = result set caching is enabled
0 = result set caching is disabled

**Applies to**: [!INCLUDE[ssazuresynapse-md](../../includes/ssazuresynapse-md.md)] Gen2. While this feature is being rolled out to all regions, check the version deployed to your instance and the latest [Azure Synapse release notes](/azure/synapse-analytics/sql-data-warehouse/release-notes-10-0-10106-0) and [Gen2 upgrade schedule](/azure/synapse-analytics/sql-data-warehouse/gen2-migration-schedule) for feature availability. | | **is_accelerated_database_recovery_on** | **bit** | Indicates whether Accelerated Database Recovery (ADR) is enabled.
1 = ADR is enabled
0 = ADR is disabled

**Applies to**: [!INCLUDE[sql-server-2019](../../includes/sssql19-md.md)]and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | | **is_tempdb_spill_to_remote_store** | **bit** | Indicates whether `tempdb` spill to remote store is enabled.
1 = enabled
0 = disabled

**Applies to**: [!INCLUDE[ssazuresynapse-md](../../includes/ssazuresynapse-md.md)] Gen2. While this feature is being rolled out to all regions, check the version deployed to your instance and the latest [Azure Synapse release notes](/azure/synapse-analytics/sql-data-warehouse/release-notes-10-0-10106-0) and [Gen2 upgrade schedule](/azure/synapse-analytics/sql-data-warehouse/gen2-migration-schedule) for feature availability. | | **is_stale_page_detection_on** | **bit** | Indicates whether stale page detection is enabled.
1 = stale page detection is enabled
0 = stale page detection is disabled

**Applies to**: [!INCLUDE[ssazuresynapse-md](../../includes/ssazuresynapse-md.md)] Gen2. While this feature is being rolled out to all regions, check the version deployed to your instance and the latest [Azure Synapse release notes](/azure/synapse-analytics/sql-data-warehouse/release-notes-10-0-10106-0) and [Gen2 upgrade schedule](/azure/synapse-analytics/sql-data-warehouse/gen2-migration-schedule) for feature availability. | | **is_memory_optimized_enabled** | **bit** | Indicates whether certain In-Memory features, such as [Hybrid Buffer Pool](../../database-engine/configure-windows/hybrid-buffer-pool.md), are enabled for the database. Doesn't reflect the availability or configuration state of [In-Memory OLTP](../in-memory-oltp/overview-and-usage-scenarios.md).
1 = memory-optimized features are enabled
0 = memory-optimized features are disabled

**Applies to**: [!INCLUDE[sql-server-2019](../../includes/sssql19-md.md)]and later versions, and [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] | |**is_ledger_on**|**bit**|Indicates a [ledger database](/azure/azure-sql/database/ledger-overview#ledger-database), which is a database in which all user tables are ledger tables (all customer database is tamper-evident).

**Applies to**: Starting with [!INCLUDE [sssql22-md](../../includes/sssql22-md.md)], [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] ## Permissions If the caller of `sys.databases` isn't the owner of the database and the database isn't `master` or `tempdb`, the minimum permissions required to see the corresponding row are `ALTER ANY DATABASE` or the `VIEW ANY DATABASE` server-level permission, or `CREATE DATABASE` permission in the `master` database. The database to which the caller is connected can always be viewed in `sys.databases`. > [!IMPORTANT] > By default, the public role has the `VIEW ANY DATABASE` permission, allowing all logins to see database information. To block a login from the ability to detect a database, `REVOKE` the `VIEW ANY DATABASE` permission from `public`, or `DENY` the `VIEW ANY DATABASE` permission for individual logins. ## Azure SQL Database Remarks In [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] this view is available in the `master` database and in user databases. In the `master` database, this view returns the information on the `master` database and all user databases on the server. In a user database, this view returns information only on the current database and the `master` database. Use the `sys.databases` view in the `master` database of the [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] server where the new database is being created. After the database copy starts, you can query the `sys.databases` and `sys.dm_database_copies` views from the `master` database of the destination server to retrieve more information about the copying progress. ## Examples ### A. Query the `sys.databases` view The following example returns a few of the columns available in the `sys.databases` view. ```sql SELECT name, user_access_desc, is_read_only, state_desc, recovery_model_desc FROM sys.databases; ``` ### B. Check the copying status in [!INCLUDE[ssSDS](../../includes/sssds-md.md)] The following example queries the `sys.databases` and `sys.dm_database_copies` views to return information about a database copy operation. **Applies to**: [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] ```sql -- Execute from the master database. SELECT a.name, a.state_desc, b.start_date, b.modify_date, b.percent_complete FROM sys.databases AS a INNER JOIN sys.dm_database_copies AS b ON a.database_id = b.database_id WHERE a.state = 7; ``` ### C. Check the temporal retention policy status in [!INCLUDE[ssSDS](../../includes/sssds-md.md)] The following example queries the `sys.databases` to return information whether temporal retention cleanup task is enabled. After the restore operation, temporal retention is disabled by default. Use `ALTER DATABASE` to enable it explicitly. **Applies to**: [!INCLUDE [ssazure-sqldb](../../includes/ssazure-sqldb.md)] ```sql -- Execute from the master database. SELECT a.name, a.is_temporal_history_retention_enabled FROM sys.databases AS a; ``` ## Next steps - [ALTER DATABASE (Transact-SQL)](../../t-sql/statements/alter-database-transact-sql.md) - [sys.database_mirroring_witnesses (Transact-SQL)](../../relational-databases/system-catalog-views/database-mirroring-witness-catalog-views-sys-database-mirroring-witnesses.md) - [sys.database_recovery_status (Transact-SQL)](../../relational-databases/system-catalog-views/sys-database-recovery-status-transact-sql.md) - [Databases and Files Catalog Views (Transact-SQL)](../../relational-databases/system-catalog-views/databases-and-files-catalog-views-transact-sql.md) - [sys.dm_database_copies (Azure SQL Database)](../../relational-databases/system-dynamic-management-views/sys-dm-database-copies-azure-sql-database.md)