Look what i figured out. I dont understand why this works, but it does

*If I add the first field with the code ALTER TABLE ALIAS(m_alias)
*I can then add the rest fields with ALTER TABLE DBF(m_alias)

IF UPPER(m_alias)="SMFALIAS"
&& executing from program 1
ALTER TABLE ALIAS(m_alias) ADD COLUMN age c(4)
ELSE
&& executing from program 2
ALTER TABLE DBF(m_alias) ADD COLUMN age c(4)
ENDIF


*intersting why does the code DBF() work now from both programs
ALTER TABLE DBF(m_alias) ADD COLUMN room c(4)
ALTER TABLE DBF(m_alias) ADD COLUMN FIRSTE c(25)
ALTER TABLE DBF(m_alias) ADD COLUMN firsth c(25)
ALTER TABLE DBF(m_alias) ADD COLUMN lasth c(30)

Now I changed it as one of you told me to
I dont know why the code was written this way, its pretty old code.

I changed it to
ALTER TABLE (m_alias) ADD COLUMN age c(4)
ALTER TABLE (m_alias) ADD COLUMN room c(4)
ALTER TABLE (m_alias) ADD COLUMN FIRSTE c(25)
ALTER TABLE (m_alias) ADD COLUMN firsth c(25)
ALTER TABLE (m_alias) ADD COLUMN lasth c(30)

and everything is working now