Defining MySQL Table Columns

Tab	Property	Description	Additional Information
General	Domain Parent	Specifies the domain parent of the column
Physical Name	Specifies the physical name of the column
Physical Data Type	Specifies the physical data type for the selected column
Null Option	Specifies the usage of the NULL clause for the selected column
MySQL	Is Generated Always	Specifies that the column's value is automatically generated based on an expression
Generation Expression	Specifies the column's value generation expression
Generate Expression Type	Specifies the generate expression's type	Virtual: Indicates that the column values are not stored, but evaluated when rows are read Stored: Indicates that the column values are evaluated and stored when rows are updated or inserted
Collation	Specifies the default collation type
Column Format	Specifies the column's data storage format	Fixed: Indicates that the fixed-width storage is used Dynamic: Indicates that the variable-width storage is used Default: Indicates that column's data type determines whether to use fixed-width or variable-width storage
Storage In	Specifies whether the column is stored on disk or memory
Visibility	Specifies the column visibility	Visible: Indicates that the column is visible Invisible: Indicates that the column is invisible
Sign	Specifies whether the column data is a signed or unsigned number	These properties are available when the column's Domain Parent is set to Number.
Zerofill	Specifies that the spaces used by default to pad the field are replaced with zeros
Auto Increment	Specifies whether the column is an Auto_Increment column
Constraint	Check Constraints	Specifies the validation rule to attach to the selected column	Selecting the Use Inherited Constraint check box indicates that the property is inherited from the column's domain
Default	Specifies the default value to attach to the selected column	Selecting the Use Inherited Default Value check box indicates that the property is inherited from the column's domain
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	Index Name	Specifies the indexes in which the selected column is a member
Type	Specifies the index type
Show FK Indexes	Specifies whether foreign key indexes appear in the index membership list

General

Domain Parent

Specifies the domain parent of the column

Physical Name

Specifies the physical name of the column

Physical Data Type

Specifies the physical data type for the selected column

Null Option

Specifies the usage of the NULL clause for the selected column

MySQL

Is Generated Always

Specifies that the column's value is automatically generated based on an expression

Generation Expression

Specifies the column's value generation expression

Generate Expression Type

Specifies the generate expression's type

Virtual: Indicates that the column values are not stored, but evaluated when rows are read

Stored: Indicates that the column values are evaluated and stored when rows are updated or inserted

Collation

Specifies the default collation type

Column Format

Specifies the column's data storage format

Fixed: Indicates that the fixed-width storage is used

Dynamic: Indicates that the variable-width storage is used

Default: Indicates that column's data type determines whether to use fixed-width or variable-width storage

Storage In

Specifies whether the column is stored on disk or memory

Visibility

Specifies the column visibility

Visible: Indicates that the column is visible

Invisible: Indicates that the column is invisible

Sign

Specifies whether the column data is a signed or unsigned number

These properties are available when the column's Domain Parent is set to Number.

Zerofill

Specifies that the spaces used by default to pad the field are replaced with zeros

Auto Increment

Specifies whether the column is an Auto_Increment column

Constraint

Check Constraints

Specifies the validation rule to attach to the selected column

Selecting the Use Inherited Constraint check box indicates that the property is inherited from the column's domain

Default

Specifies the default value to attach to the selected column

Selecting the Use Inherited Default Value check box indicates that the property is inherited from the column's domain

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

Index Name

Specifies the indexes in which the selected column is a member

Type

Specifies the index type

Show FK Indexes

Specifies whether foreign key indexes appear in the index membership list