[addfields db=...]...WebDNA...[/addfields]

First, let's use the following code to create a new test database and run a simple search on the new database.

Example WebDNA code:

[closedatabase db=addfields_test.db]
[writefile file=addfields_test.db]ID  NAME
1      Scott
2      Rusty
3      David
4      Daniel
5      Dustin

[/writefile]

[search db=addfields_test.db&neIDdata=[blank]&rank=off]
  [founditems]
    [ID] - [NAME]<br>
  [/founditems]
[/search]copy

Results:
1 - Scott
2 - Rusty
3 - David
4 - Daniel
5 - Dustin

Now, let's use the [addfields] context to add EMAIL and PHONE fields to the 'addfields_test.db' database, initializing the new field value with some arbitrary data. We will again perform a simple search on the same database to confirm that the new fields, and field data, have been added.

Example WebDNA code:

[addfields db=addfields_test.db]EMAIL=us@com&PHONE=12-1235[/addfields]

[search db=addfields_test.db&neIDdata=[blank]&rank=off]
  [founditems]
    [ID] - [NAME] - [EMAIL] - [PHONE]<br>
  [/founditems]
[/search]copy

Results:
1 - Scott - us@com - 12-1235
2 - Rusty - us@com - 12-1235
3 - David - us@com - 12-1235
4 - Daniel - us@com - 12-1235
5 - Dustin - us@com - 12-1235

the [addfields] context will not add fieldnames that already exist in the target database.

[addfields] will not add more than 4 fields at one time; in the following example, the "fifth" field will not be added

[addfields db=test.db]address=[blank]&website=[blank]&brochure=[blank]&Home=[blank]&fifth=[blank][/addfields]copy

[deletefields] feature has been added in version 8.6
[deletefields db=test.db&fieldnames=column1,column4]