Class ObjectSchema.InternalTable
- Namespace
- LinqToDB.Tools.DataProvider.SqlServer.Schemas
- Assembly
- linq2db.Tools.dll
sys.internal_tables (Transact-SQL)
Applies to: √ SQL Server (all supported versions)
Returns one row for each object that is an internal table. Internal tables are automatically generated by SQL Server to support various features. For example, when you create a primary XML index, SQL Server automatically creates an internal table to persist the shredded XML document data. Internal tables appear in the sys schema of every database and have unique, system-generated names that indicate their function, for example, xml_index_nodes_2021582240_32001 or queue_messages_1977058079
Internal tables do not contain user-accessible data, and their schema are fixed and unalterable. You cannot reference internal table names in Transact\-SQL statements. For example, you cannot execute a statement such as SELECT \* FROM *\<sys.internal_table_name>*. However, you can query catalog views to see the metadata of internal tables.
See sys.internal_tables.
[Table(Schema = "sys", Name = "internal_tables", IsView = true)]
public class ObjectSchema.InternalTable- Inheritance
-
ObjectSchema.InternalTable
- Extension Methods
Properties
CreateDate
Date the object was created.
[Column("create_date")]
[NotNull]
public DateTime CreateDate { get; set; }Property Value
FilestreamDataSpaceID
Reserved for future use.
[Column("filestream_data_space_id")]
[Nullable]
public int? FilestreamDataSpaceID { get; set; }Property Value
- int?
InternalType
Type of the internal table:
3 = query_disk_store_query_hints
4 = query_disk_store_query_template_parameterization
6 = query_disk_store_wait_stats
201 = queue_messages
202 = xml_index_nodes
203 = fulltext_catalog_freelist
205 = query_notification
206 = service_broker_map
207 = extended_indexes (such as a spatial index)
208 = filestream_tombstone
209 = change_tracking
210 = tracked_committed_transactions
220 = contained_features
225 = filetable_updates
236 = selective_xml_index_node_table
240 = query_disk_store_query_text
241 = query_disk_store_query
242 = query_disk_store_plan
243 = query_disk_store_runtime_stats
244 = query_disk_store_runtime_stats_interval
245 = query_context_settings
[Column("internal_type")]
[Nullable]
public byte? InternalType { get; set; }Property Value
- byte?
InternalTypeDesc
Description of the type of internal table:
QUERY_DISK_STORE_QUERY_HINTS
QUERY_DISK_STORE_QUERY_TEMPLATE_PARAMETERIZATION
QUERY_DISK_STORE_WAIT_STATS
QUEUE_MESSAGES
XML_INDEX_NODES
FULLTEXT_CATALOG_FREELIST
FULLTEXT_CATALOG_MAP
QUERY_NOTIFICATION
SERVICE_BROKER_MAP
EXTENDED_INDEXES
FILESTREAM_TOMBSTONE
CHANGE_TRACKING
TRACKED_COMMITTED_TRANSACTIONS
CONTAINED_FEATURES
FILETABLE_UPDATES
SELECTIVE_XML_INDEX_NODE_TABLE
QUERY_DISK_STORE_QUERY_TEXT
QUERY_DISK_STORE_QUERY
QUERY_DISK_STORE_PLAN
QUERY_DISK_STORE_RUNTIME_STATS
QUERY_DISK_STORE_RUNTIME_STATS_INTERVAL
QUERY_CONTEXT_SETTINGS
[Column("internal_type_desc")]
[Nullable]
public string? InternalTypeDesc { get; set; }Property Value
IsMSShipped
Object is created by an internal SQL Server component.
[Column("is_ms_shipped")]
[Nullable]
public bool? IsMSShipped { get; set; }Property Value
- bool?
IsPublished
Object is published.
[Column("is_published")]
[Nullable]
public bool? IsPublished { get; set; }Property Value
- bool?
IsSchemaPublished
Only the schema of the object is published.
[Column("is_schema_published")]
[Nullable]
public bool? IsSchemaPublished { get; set; }Property Value
- bool?
LobDataSpaceID
Non-zero value is the ID of data space (filegroup or partition-scheme) that holds the large object (LOB) data for this table.
[Column("lob_data_space_id")]
[NotNull]
public int LobDataSpaceID { get; set; }Property Value
ModifyDate
Date the object was last modified by using an ALTER statement. If the object is a table or a view, modify_date also changes when an index on the table or view is created or altered.
[Column("modify_date")]
[NotNull]
public DateTime ModifyDate { get; set; }Property Value
Name
Object name.
[Column("name")]
[NotNull]
public string Name { get; set; }Property Value
Object
objects (sys.objects)
[Association(ThisKey = "ObjectID", OtherKey = "ObjectID", CanBeNull = false)]
public ObjectSchema.Object Object { get; set; }Property Value
ObjectID
Object identification number. Is unique within a database.
[Column("object_id")]
[NotNull]
public int ObjectID { get; set; }Property Value
ParentID
ID of the parent, regardless of whether it is schema-scoped or not. Otherwise, 0 if there is no parent.
queue_messages = object_id of queue
xml_index_nodes = object_id of the xml index
fulltext_catalog_freelist = fulltext_catalog_id of the full-text catalog
fulltext_index_map = object_id of the full-text index
query_notification, or service_broker_map = 0
extended_indexes = object_id of an extended index, such as a spatial index
object_id of the table for which table tracking is enabled = change_tracking
[Column("parent_id")]
[Nullable]
public int? ParentID { get; set; }Property Value
- int?
ParentMinorID
Minor ID of the parent.
xml_index_nodes = index_id of the XML index
extended_indexes = index_id of an extended index, such as a spatial index
0 = queue_messages, fulltext_catalog_freelist, fulltext_index_map, query_notification, service_broker_map, or change_tracking
[Column("parent_minor_id")]
[Nullable]
public int? ParentMinorID { get; set; }Property Value
- int?
ParentObjectID
ID of the object to which this object belongs.
0 = Not a child object.
[Column("parent_object_id")]
[NotNull]
public int ParentObjectID { get; set; }Property Value
PrincipalID
ID of the individual owner, if different from the schema owner. By default, schema-contained objects are owned by the schema owner. However, an alternate owner can be specified by using the ALTER AUTHORIZATION statement to change ownership.
Is NULL if there is no alternate individual owner.
Is NULL if the object type is one of the following:
C = CHECK constraint
D = DEFAULT (constraint or stand-alone)
F = FOREIGN KEY constraint
PK = PRIMARY KEY constraint
R = Rule (old-style, stand-alone)
TA = Assembly (CLR-integration) trigger
TR = SQL trigger
UQ = UNIQUE constraint
EC = Edge constraint
[Column("principal_id")]
[Nullable]
public int? PrincipalID { get; set; }Property Value
- int?
SchemaID
ID of the schema that the object is contained in.
Schema-scoped system objects are always contained in the sys or INFORMATION_SCHEMA schemas.
[Column("schema_id")]
[NotNull]
public int SchemaID { get; set; }Property Value
TypeColumn
Object type:
AF = Aggregate function (CLR)
C = CHECK constraint
D = DEFAULT (constraint or stand-alone)
F = FOREIGN KEY constraint
FN = SQL scalar function
FS = Assembly (CLR) scalar-function
FT = Assembly (CLR) table-valued function
IF = SQL inline table-valued function
IT = Internal table
P = SQL Stored Procedure
PC = Assembly (CLR) stored-procedure
PG = Plan guide
PK = PRIMARY KEY constraint
R = Rule (old-style, stand-alone)
RF = Replication-filter-procedure
S = System base table
SN = Synonym
SO = Sequence object
U = Table (user-defined)
V = View
EC = Edge constraint
Applies to: SQL Server 2012 (11.x) and later.
SQ = Service queue
TA = Assembly (CLR) DML trigger
TF = SQL table-valued-function
TR = SQL DML trigger
TT = Table type
UQ = UNIQUE constraint
X = Extended stored procedure
Applies to: SQL Server 2014 (12.x) and later, Azure SQL Database, Azure Synapse Analytics, Analytics Platform System (PDW).
ST = STATS_TREE
Applies to: SQL Server 2016 (13.x) and later, Azure SQL Database, Azure Synapse Analytics, Analytics Platform System (PDW).
ET = External Table
[Column("type")]
[NotNull]
public string TypeColumn { get; set; }Property Value
TypeDesc
Description of the object type:
AGGREGATE_FUNCTION
CHECK_CONSTRAINT
CLR_SCALAR_FUNCTION
CLR_STORED_PROCEDURE
CLR_TABLE_VALUED_FUNCTION
CLR_TRIGGER
DEFAULT_CONSTRAINT
EXTENDED_STORED_PROCEDURE
FOREIGN_KEY_CONSTRAINT
INTERNAL_TABLE
PLAN_GUIDE
PRIMARY_KEY_CONSTRAINT
REPLICATION_FILTER_PROCEDURE
RULE
SEQUENCE_OBJECT
Applies to: SQL Server 2012 (11.x) and later.
SERVICE_QUEUE
SQL_INLINE_TABLE_VALUED_FUNCTION
SQL_SCALAR_FUNCTION
SQL_STORED_PROCEDURE
SQL_TABLE_VALUED_FUNCTION
SQL_TRIGGER
SYNONYM
SYSTEM_TABLE
TABLE_TYPE
UNIQUE_CONSTRAINT
USER_TABLE
VIEW
[Column("type_desc")]
[Nullable]
public string? TypeDesc { get; set; }