Use this window to set up a new column or edit the details of an
existing column.
Complete this window as follows:
- Column Name
- Type the column name. If you are editing the column, you cannot change
the name.
Tip: When creating
ObjectServer objects, their names must begin with an uppercase or
lowercase letter, followed by uppercase or lowercase letters, numbers,
or underscore (_) characters, up to 40 characters in length. User,
group, and role names can be any text string up to 64 characters in
length and can include spaces. Names of ObjectServer objects are
case-sensitive.
- Data Type
- Select a data type for the column. The data type determines how the ObjectServer
processes the data in the column. If you are editing the column, you cannot
change the data type. You can select from the following data types:
- Integer: 32-bit signed integer
- UTC: Time, stored as the number of seconds since midnight
January 1, 1970
- VarChar: Variable size character string, up to 8192 Bytes
in length
- Incr: 32-bit unsigned auto-incrementing integer that
can only be updated by the system
- Char: Fixed size character string, up to 8192 Bytes in
length
- Unsigned: 32-bit unsigned integer
- Boolean: TRUE or FALSE
- Real: 64-bit signed floating point number
- Integer64: 64-bit signed integer
- Unsigned64: 64-bit unsigned integer
- Length
- This field is available only when you select VarChar or Char from
the Data Type list. Specify the column length.
- Primary Key
- Select this check box to indicate that the column is a primary key. The
primary key column or columns uniquely identify each row. A primary key column
must have a default value.
- No Modify
- Select this check box to indicate that users cannot modify data in this
column.
- No Default
- Select this check box to indicate that a value must be specified for this
column in any INSERT command.
Saving your column
details
After creating or editing a column, you can save or cancel
the changes made by clicking the relevant button as follows:
- Apply
- If you want to add multiple columns without exiting the Column
Details window, click this button to save the column details after
adding each set of entries.
- OK
- After entering the values for the last column that you want to add at
the present time, click this button to save the column details and close the
window. New columns are added to the Databases, Tables and Columns pane.
- Cancel
- Click this button to close the window without saving your changes.