Define Teradata Table Column Properties

Tab	Property	Description	Additional Information
	Physical Name	Specifies the physical name of the column
	Domain parent	Specifies the domain parent of the column
	Physical Data Type	Specifies the physical data type for the selected column
	Primary Key	Specifies the column as the table's primary key
	Foreign Key	Specifies whether the column is a foreign key
	Physical Only	Specifies whether the column is included in the physical model only
	SDI	Specifies whether the column contains Personally Identifiable Information (SDI)
	Comments	Specifies comments about the column
General	Null Option	Specifies the usage of the NULL clause for the selected column	Null: Indicates that null values are allowed Not Null: Indicates that null values are not allowed
Teradata	Average Width	Specifies an estimated average width for the column, if variable width is allowed
Percent Null	Specifies an estimated percentage of nulls used for that column
Column Compression	Specifies whether to use column compression
Compression Algorithm	Specifies the algorithm to use for column compression	Available when Column Compression is enabled
Decompression Algorithm	Specifies the algorithm to use for column decompression
Compress Values	Specifies a compress value for the table column
Format	Specifies the format in which the data is displayed in Teradata applications
Title	Specifies a name to identify the column values in Teradata applications
Character Set Type	Specifies the type of character set to use
Character Case	Specifies how Teradata considers the case of the values in database fields for the selected column during processing	Available only if Physical Data Type is a Character data type. For example, CHAR, CHAR(), CHAR VARYING(), and CHARACTER Case-Specific: Indicates that Progress considers the case of the value strings for processing None, Not Case-Specific: Indicates that Progress does not consider the case of value strings for processing
Upper Case	Specifies whether column values are stored exactly as entered or automatically converted to uppercase characters	Available only if Physical Data Type is a Character data type. For example, CHAR, CHAR(), CHAR VARYING(), and CHARACTER
Constraints	Include Inherited Constraints	Specifies whether the validation rule is inherited from the column's domain
Physical Name	Specifies the name of the inherited validation rule to be attached to the selected column
Validation Rule	Specifies the validation rule to attach to the selected column
Valid-Time Qualifier	Specifies the valid-time qualifier to define temporal properties	Current Valid-Time: Indicates that the query applies to only data that is currently in effect Sequenced Valid-Time: Indicates that the query applies to only data that is in effect for a specified time period Non-Sequenced Valid-TIme: Indicates that the tables are treated as non-temporal, and valid-time dimension is ignored
Transaction-Time Qualifier	Specifies the transaction-time qualifier to define temporal properties	Current Transaction-Time: Indicates that the query applies to only data that is currently open
Use Inherited Default Value	Specifies whether the property is inherited from the column's domain
Name	Specifies the name of the default value to be attached to the selected column
Default	Specifies the default value to attach to the selected column
Link	Link Name	Specifies the user-defined link name	You can use the Link Wizard to create and manage link objects and define the link object properties. For more information on the Link Wizard refer to the Link Wizard topic.
Linked To	Specifies the linked column name
Synch Direction	Specifies the synchronization direction of the link
Definition	Specifies the definition of the link
Indexes	Show FK Indexes	Specifies whether foreign key indexes appear in the index membership list
Index Name	Specifies the indexes in which the selected column is a member
Type	Specifies the index type

Physical Name

Specifies the physical name of the column

Domain parent

Specifies the domain parent of the column

Physical Data Type

Specifies the physical data type for the selected column

Primary Key

Specifies the column as the table's primary key

Foreign Key

Specifies whether the column is a foreign key

Physical Only

Specifies whether the column is included in the physical model only

SDI

Specifies whether the column contains Personally Identifiable Information (SDI)

Comments

Specifies comments about the column

General

Null Option

Specifies the usage of the NULL clause for the selected column

Null: Indicates that null values are allowed

Not Null: Indicates that null values are not allowed

Teradata

Average Width

Specifies an estimated average width for the column, if variable width is allowed

Percent Null

Specifies an estimated percentage of nulls used for that column

Column Compression

Specifies whether to use column compression

Compression Algorithm

Specifies the algorithm to use for column compression

Available when Column Compression is enabled

Decompression Algorithm

Specifies the algorithm to use for column decompression

Compress Values

Specifies a compress value for the table column

Format

Specifies the format in which the data is displayed in Teradata applications

Title

Specifies a name to identify the column values in Teradata applications

Character Set Type

Specifies the type of character set to use

Character Case

Specifies how Teradata considers the case of the values in database fields for the selected column during processing

Available only if Physical Data Type is a Character data type. For example, CHAR, CHAR(), CHAR VARYING(), and CHARACTER

Case-Specific: Indicates that Progress considers the case of the value strings for processing

None, Not Case-Specific: Indicates that Progress does not consider the case of value strings for processing

Upper Case

Specifies whether column values are stored exactly as entered or automatically converted to uppercase characters

Available only if Physical Data Type is a Character data type. For example, CHAR, CHAR(), CHAR VARYING(), and CHARACTER

Constraints

Include Inherited Constraints

Specifies whether the validation rule is inherited from the column's domain

Physical Name

Specifies the name of the inherited validation rule to be attached to the selected column

Validation Rule

Specifies the validation rule to attach to the selected column

Valid-Time Qualifier

Specifies the valid-time qualifier to define temporal properties

Current Valid-Time: Indicates that the query applies to only data that is currently in effect

Sequenced Valid-Time: Indicates that the query applies to only data that is in effect for a specified time period

Non-Sequenced Valid-TIme: Indicates that the tables are treated as non-temporal, and valid-time dimension is ignored

Transaction-Time Qualifier

Specifies the transaction-time qualifier to define temporal properties

Current Transaction-Time: Indicates that the query applies to only data that is currently open

Use Inherited Default Value

Specifies whether the property is inherited from the column's domain

Name

Specifies the name of the default value to be attached to the selected column

Default

Specifies the default value to attach to the selected column

Link

Link Name

Specifies the user-defined link name

You can use the Link Wizard to create and manage link objects and define the link object properties. For more information on the Link Wizard refer to the Link Wizard topic.

Linked To

Specifies the linked column name

Synch Direction

Specifies the synchronization direction of the link

Definition

Specifies the definition of the link

Indexes

Show FK Indexes

Specifies whether foreign key indexes appear in the index membership list

Index Name

Specifies the indexes in which the selected column is a member

Type

Specifies the index type

Defining Teradata Table Columns