Column management

Table window	Columns menu
Column Management

The Column Management dialog box offers the following possibilities:

add columns to the table,
delete columns from the table,
view and/or edit the properties of a column,
change the order of columns,
update dependent columns which are not up-to-date at the moment.

This dialog box appears when:

you choose Column Management from the Columns menu;
you click the Column Management button at the upper left corner of the table viewer.

Dialog box options:

Columns:	You should select a column if you wish to open the properties of this column, or when you wish to delete this column. To change the order of columns in the table, select a column and drag it to another position in the list. The column that appears at the top of the list is the first column in the table. If you double-click a column in the list, the Column Properties dialog box of the selected column is directly opened.
Add Column:	Click this command button to add a new column to the table. The Add Column dialog box follows. In this Column Management dialog box, you can also press the Insert key on the keyboard.
Properties:	Click this command button to view and/or edit the properties of the selected column. The Column Properties dialog box of the column will be opened.
Delete:	Click this command button to delete the selected column from the table. In this Column Management dialog box, you can also press the Del key on the keyboard.
Make Up-to-Date:	If you selected a dependent column which is not up-to-date at the moment: click this button to check all columns on which this column depends, see if these are up-to-date, if not, check all columns below, etc., and calculate this column again using all new changed columns. To make all columns of the table up-to-date, you can also select the Update All Columns command on the Columns menu, or click the Update All Columns button in the toolbar.

Tips:

To open the properties of a column, you can also double-click a column header in the table.
To change the order of columns, you can also drag and drop columns to another position in the table.

In the table window, click a column name and hold the mouse button down, the mouse pointer changes into a column icon , drag the column to a new position in the table, then release the left mouse button.

To add a column to a table, you can also double-click the gray button to the right of the last column in the table window.
To delete columns from a table, you can also select one or more columns in the table window, and press the Del key on the keyboard.
When you click a column header in the table window to select the column, you can also use the context-sensitive menu to delete the column or view its properties.

Table window

Column Management